WO2010022532A2

WO2010022532A2 - Sole for an item of footwear

Info

Publication number: WO2010022532A2
Application number: PCT/CH2009/000293
Authority: WO
Inventors: Andrea Scavini; Mario Di Pippo
Original assignee: Flexyboots Gmbh
Priority date: 2008-09-01
Filing date: 2009-08-31
Publication date: 2010-03-04
Also published as: CH699482A1; EP2323512A2; WO2010022532A3; EP2323512B1

Abstract

A sole (3) for an item of footwear comprises a sole body with a shell (4) and a core (5), wherein the core (5) is embedded in the shell (4), and wherein the core (5) is produced from a material which is stronger than the material of the shell (4). The core (5) of the sole body comprises a heel part (51) and a ball-of-the-foot part (52), wherein the heel part (51) and the ball-of-the-foot part (52) each have a base side (513) which is arranged in the direction of a base side (42) of the shell (4) and is curved convexly. The base side (513) of the heel part (51) of the core (5) is curved convexly to different extents, with varying radii in each case, along different axes (512') of the heel part (51) of the core (5). Such a sole (3) can cushion and support the main regions of the foot which are subjected to loading during walking and running, and therefore a rolling action adapted to the biomechanics of the foot is possible during walking and running. It is also the case that the sole (3) allows activation of the muscles of the wearer's apparatus of support and locomotion, and active walking and running are made possible. Incorrect loading of the foot with the associated effects on the apparatus of support and locomotion can be avoided or reduced in this way.

Description

sole

Technical area

The invention relates to a shoe sole according to the preamble of independent claim 1 and a shoe with such a shoe sole.

Such shoe soles having a sole body comprising a shell and a core, wherein the core is embedded in the shell and made of a harder in relation to the material of the shell material can be used in various types of shoes such as sports, leisure or Everyday shoes are used.

State of the art

Typically, shoes consist of a shoe sole which is designed to support the foot sole of a foot, and a shaft with which the foot resting on the shoe sole can be enclosed. The shoes are often designed, for example, with respect to the shaft structure, the heel structure and / or the shoe sole structure so that the foot is restricted and deformed in its actual natural movement. This can result in a wrong movement behavior of the shoe wearer, which in turn can lead to significant loss of comfort and to numerous health complaints of the shoe wearer, such as back pain or hip, knee or foot problems.

To increase the wearing comfort, to improve performance and / or for therapeutic and preventive purposes is therefore increasingly trying in the design of shoes and in particular those shoe soles, the anatomical structure of the foot and avoiding the problems mentioned better. For example, today shoe soles often have a Dämpfkonstruktion, with which the load acting on the shoe wearer when walking or running should be reduced. In this case, the natural tread surfaces of the foot, ie in particular the heel and the ball area as well as the toe area of the sole of the foot, are typically taken into account.

In addition to the shoe soles equipped with the mentioned steam constructions, shoe soles are also used today, in the construction of which the biomechanics of the foot and the entire musculoskeletal system are incorporated. For example, WO 99/03368 A1 describes a shoe with a shoe sole having a sole body whose bottom side facing away from the foot forms a tilting axis in a midfoot area. By means of the tilting axis of the sole body, a rolling of the foot is achieved during the placing of the shoe on the ground, whereby the impact load on joints and spine during running should be kept low. In addition, the tilting axis in the stance phase cause an attitude with knees bent, whereby the spine can be relieved even in the state. To increase the dimensional stability of the sole body from a heel area to the midfoot area, a reinforcing core plate is embedded in the sole body of this shoe.

The mentioned shoes or shoe soles from the prior art, in addition to the advantages described also disadvantages. For example, too strong instabilities can create a wrong behavior of the foot when walking or running or be perceived as uncomfortable. Or if the shoe is too rigid, the foot can not roll according to its anatomy. Also, a flared heel can exert leverage on the heel, which can result in improper loading of the foot and the attached musculoskeletal system.

There is thus a need for a shoe sole which allows a foot movement adapted to the biomechanics and anatomy of the foot when walking, running and standing. Presentation of the invention

The object is achieved according to the invention by a shoe sole, as defined in the independent claim 1. Advantageous embodiments of the inventive shoe sole result from the dependent claims. The essence of the invention is as follows: A shoe sole comprises a sole body with a shell and a core (Balance Driver ™), wherein the core (Balance Driver ™) is embedded in the shell and wherein the core (Balance Driver ™) consists of a in Relative to the material of the shell is made of firmer material. The balance (Balance Driver ™) of the sole body comprises a heel part and a bale part, wherein the heel part and the bale part each have a bottom side arranged in the direction of a bottom side of the shell, which is convexly curved.

With regard to the materials of the shell and the core (Balance Driver ™), the term solid is understood to mean the resistance to plastic and elastic deformation. The shoe sole is configured so that the heel part of the core (Balance Driver ™) is located adjacent the heel of a foot and the ball portion of the core (Balance Driver ™) adjacent to the ball of the foot when the shoe sole is facing away from the bottom of the sole body as intended Foot side against the foot. In this context, the term "ball of the foot" is understood to mean that part of the foot beneath the toe-base joints, which includes a usually slightly curved region of the sole of the foot. The convex curvature of the Balance Driver ™ and Balance Driver ™ bale part may be round, elliptical, with or without a flattened plateau, trapezoidal, any curved function, or the like.

In the shoe sole according to the invention, the natural two-component concept of the human foot is adopted. In this natural two-component concept of the human foot, the main stress areas of the foot, especially the heel area and the ball area, are with a relatively firm core, especially the heel bone and the obliquely transverse row the metatarsal head, which is covered in the direction of the sole of a relatively deformable coat, for example, the heel fat pad and the bale fat pad. In the case of the shoe sole according to the invention, the relatively firm core (Balance Driver ™) and in particular its heel part and its bale part are correspondingly sheathed by the relatively deformable shell. Due to the convex curved bottom side of the heel part and the bale part, the shoe sole is configured with a rounded heel area and a rounded ball area. The rounded heel area allows, inter alia, an initiation into the loading process while walking or running without exerting an additional leverage.

In this way, in contrast to conventional shoe sole systems in which the foot is generally soft-bedded and a relatively hard heel is placed underneath, the natural two-component concept of the human foot is incorporated into the shoe sole in the shoe sole according to the invention.

With the shoe sole according to the invention, the main load areas of the foot can be detected and supported during walking and running, so that unrolling when walking or running adapted to the biomechanics of the foot is possible. As with the human foot, the sole of the shoe is not stable when it is solely loaded on its heel or when it is loaded on its own. At these loads so the passive stability of the shoe sole is limited and a corresponding stability must be actively generated or held. During the midstance phase, however, there is a three-point to flat load under the heel and, in particular, under the foot, analogously to the human foot, which leads to stability in the foot. Again, analogous to the human foot, the relatively deformable shell can flatten at a relatively high load when walking or while running to the ground, which corresponds to a damping process, and thus then convey a greater passive stability. At the same time, however, as described above, the shoe sole may frequently be in an unstable state during walking, which is registered and compensated by the wearer of a shoe sole-comprising shoe with the sole of the foot. As a result, among other things, the musculature of the musculoskeletal system of the wearer is activated and an active Walking or running allows. Improper loading of the foot with the associated effects on the musculoskeletal system can be avoided or reduced in this way. As a result of this embodiment of the shoe sole modeled on the human foot, an active walking or running is made possible and provided for a proprioreceptive response in the foot, which leads to an activation of the musculoskeletal system, whereby the entire musculoskeletal system is trained or sensitized.

The Balance Driver ™ and Balance Driver ™ parts of the ball can each have a foot facing foot that is essentially flat and flat. The outline of the foot side of the core of the core (Balance Driver ™) and the outline of the foot side of the ball portion of the core (Balance Driver ™) may be configured to include at least a projection of the heel of the foot or a projection of the foot's footage. In particular, the contours of the foot sides of the heel portion of the core (Balance Driver ™) and the ball portion of the core (Balance Driver ™) may each be made substantially elliptical. The longitudinal or principal axes of these two outlines, for example of the two ellipses, can each be arranged obliquely to the longitudinal axis of the shoe sole, the longitudinal relationship of main axes converging on an outer side of the shoe sole to be assigned to the outer crotch of the foot and thus on an inner crotch of the foot attributable to the inner side of the shoe sole away from each other. Also, the outline of the foot side of the heel part may be configured with a bulge that can be arranged adjacent to the sole tacitum tali of the heel bone of the foot, whereby a stabilization of the shoe sole from the heel area towards the inside of the shoe sole can be achieved. Further, the ball portion of the core (Balance Driver ™) may have two flanks substantially perpendicular to its root side. With such raised edges from the core (Balance Driver ™), on the one hand, the heel can be improved and, on the other hand, a shaft of the shoe can be stabilized in this area.

According to the invention, the bottom side of the balance part of the core (Balance Driver ™) along different axes of the heel part of the core (Balance Driver ™) is configured differently convexly with each changing radii. In particular, the bottom side of the heel part of the core (Balance Driver ™) can be made substantially ellipsoidal. Thus, when walking or running at least at times in any direction, an instability of the heel of the foot can be generated, which is registered by the wearer of the shoe sole comprehensive shoe with the sole of the foot and muskulär balanced. As a result, among other things, the musculature of the musculoskeletal system of the wearer additionally activated and a natural walking or running are possible. Improper loading of the foot with the corresponding effects on the musculoskeletal system can be avoided or reduced in this way.

Preferably, a longitudinal axis of the heel part of the core (Balance Driver ™) and the longitudinal axis of the shoe sole enclose an angle which is in a range of about 90 ° to about 110 ° and in particular in a range of about 95 ° to about 103 °. In this case, this angle is measured to one of the inner side of the foot attributable side of the sole to the toe area of the sole or to one of the outside of the foot attributable side of the sole to the heel area of the sole. With a balance part of the core (Balance Driver ™) arranged in this way, the natural rolling behavior of the heel of the foot can be reproduced in the shoe sole and transferred to the shoe sole. Thus, by means of the shoe sole, the natural movement during walking or running can be further supported and promoted.

Preferably, the bottom side of the ball portion of the core (Balance Driver ™) along various axes of the ball portion of the core (Balance Driver ™) is configured differently convex with each changing radii. In particular, the bottom side of the ball portion of the core (Balance Driver ™) may be configured substantially ellipsoidal. Thus, when walking or running at least temporarily in any direction and instability of the football of the foot can be generated, which is registered by the wearer of the shoe sole comprehensive shoe with the sole of the foot and balanced muscular. As a result, among other things, the musculature of the musculoskeletal system of the wearer additionally activated and a natural walking or running are possible. Improper loading of the foot with the corresponding effects on the musculoskeletal system can be further avoided or reduced in this way. Preferably, a longitudinal axis of the ball portion of the core (Balance Driver ™) and the longitudinal axis of the shoe sole enclose an angle which is in a range of about 70 ° to about 85 °, in particular in a range of about 75 ° to about 80 ° and the especially about 77 °. In this case, this angle is measured to one of the inner side of the foot attributable side of the sole to the toe area of the sole or to one of the outside of the foot attributable side of the sole to the heel area of the sole. With a ball part of the core (Balance Driver ™) arranged in this way, the natural rolling behavior of the football of the foot can be reproduced in the sole of the shoe and transferred to the sole of the shoe. Thus, by means of the shoe sole, the natural movement during walking or running can be further supported and promoted.

Preferably, the bottom side of the shell is configured in a region adjacent to the heel part of the core (Balance Driver ™) substantially corresponding to the bottom side of the heel part of the core (Balance Driver ™). With such a side of the shell, in addition to the heel part of the core (Balance Driver ™), the shell in the heel area of the shoe sole can be modeled on the shape of the heel of the foot. This may allow for improved sliding shoe sole introduction into the walking load.

Preferably, the bottom side of the shell may be configured in a region adjacent the ball portion of the core (Balance Driver ™) substantially corresponding to the bottom side of the ball portion of the core (Balance Driver ™). With such a bottom side of the shell, in addition to the ball portion of the core (Balance Driver ™), the shell in the ball area of the shoe sole can be modeled on the shape of the foot's foot, which allows for better rolling performance of the shoe sole when walking or running.

The shell can be concavely curved between the heel part and the bale part in the longitudinal direction of the shoe sole. With such a sole body can be prevented that the shoe sole rests between the heel area and the ball area and thus affects the rolling behavior of the shoe sole. The shell can also between the heel part and the bale part in the longitudinal direction of the Shoe sole filled with a soft material and be designed substantially flat.

In a preferred embodiment, the core (Balance Driver ™) comprises a web which connects the heel part and the bale part with each other. With such a bridge, the shoe sole can be kept stiff according to the human foot between the heel area and the ball area. This allows a deformation of the shoe sole between the heel area and the ball area in the direction of the ground and a corresponding kinking of the foot in the shaft keep low, thus allowing greater stability and a stronger midfoot pronation can be prevented and an improved natural rolling of the foot is possible. In particular, it can be prevented that the shoe sole buckles when walking or running in the phase between the heel load and the Midstance load in the area between the heel area and the ball area and thus affects the natural biomechanics of the foot.

Preferably, the balance part of the core (Balance Driver ™) and the balance part of the ball (Balance Driver ™) each have a foot facing foot and the bridge connects the balance part of the core (Balance Driver ™) and the ball part of the core (Balance Driver ™ ) each at their foot sides together. Thus, a desired stiffness of the shoe sole between the heel area and the ball area can be achieved without affecting the convexity of the balance part of the core (Balance Driver ™) and the ball part of the core (Balance Driver ™).

Preferably, the heel part of the core (Balance Driver ™) and / or the ball part of the core (Balance Driver ™) has at least one chamber. In this case, the foot sides of the heel part of the core (Balance Driver ™) and the ball part of the core (Balance Driver ™) can be designed covered in the direction of the foot. The at least one chamber may be filled with air or other materials. With such at least one chamber, the weight of the shoe sole can be reduced, which can improve the wearing comfort of the shoe sole. In another preferred embodiment, the core (Balance Driver ™) includes a lip portion extending from the ball portion of the core (Balance Driver ™) toward a toe portion of the shoe sole. With such a lip part, the preferred rolling movement of the shoe sole can be continued into the toe area of the shoe sole and thus into a toe area and in particular into a big toe area of the foot. In this case, the lip part can have recesses which can allow a flexible behavior with respect to the individual toes of the foot when unrolling.

Preferably, the balance (Balance Driver ™) of the soleplate is made of a synthetic material, wood, metal or synthetic fibers. By means of such materials, the core (Balance Driver ™) can be economically produced with properties adapted to its specific purpose. It may be advantageous to adapt the configuration of the core (Balance Driver ™) to the dimensions of the carrier and / or to the weight of the carrier and to the intended area of use of the shoe sole.

Preferably, the shell of the sole body is made of rubber, polyurethane, leather or rubber. By means of such materials, the shell can be produced economically with adapted to its specific purpose properties. It may be advantageous to adapt the configuration of the shell to the dimensions of the carrier and / or on the weight of the carrier and on the intended application of the shoe sole. Also, the shell may be of variable hardness and / or strength to specifically accommodate the local stress situation in the shoe sole. In this case, the shell can be made relatively soft, in particular in a region of the rolling-in and / or in a region of the rolling, in order to support this movement. It can also be made relatively soft in the region of the ground contact in order to initially damp by deformation in the sense of flattening and then to produce a greater stability. Also, it can be made relatively hard in the medial area of the heel to prevent overpronation.

Another aspect of the invention relates to a shoe comprising a shoe sole according to one of the preceding claims and a shaft. In doing so, the shoe sole can in particular on a foot inner side and on a foot outer side in the area of the heel, be designed to be raised adjacent to the shaft in order to stabilize the shaft and connect it to the shoe sole in an improved manner.

Brief description of the drawings

In the following, the shoe according to the invention and the shoe sole according to the invention will be described in more detail with reference to the attached drawings by means of exemplary embodiments. 1 shows a side view of a shoe according to the invention with a shoe sole according to the invention;

FIG. 2 is a cross-sectional view of the shoe sole of FIG. 1; FIG. Fig. 3 is a view of a core of the shoe sole of Fig. 1 from the bottom side of

Shoe sole; and FIG. 4 is a perspective view of the core of FIG. 1.

Way (s) for carrying out the invention

FIG. 1 shows an exemplary embodiment of a shoe 1 according to the invention with a shaft 2 and a shoe sole 3 according to the invention. The shaft 2 may be made of any suitable material, such as leather, nylon, or similar material, in a known manner. He may also have any suitable means for fixing a foot of a shoe wearer such as laces, hook-and-loop fasteners, elastics or the like. The shoe sole 3 has a bottom side 32 or running side, which faces the ground when the shoe 1 is used as intended and which may be provided with a corresponding profile adapted to the field of use of the shoe 1. Also, the shoe sole 3 comprises a sole body with a shell 4, which also has a bottom side 42 which likewise faces the ground when the shoe 1 is used as intended. The shell 4 can be made of rubber, polyurethane, leather, a foam, something similar or a combination of several materials and a uniform or on the field have adapted variable hardness and / or strength. The shoe sole 3 has a heel region 33 located adjacent to a heel of the foot of the shoe wearer when the shoe 1 is properly attached to the foot, a bale region 34 located adjacent a ball of the foot of the shoe wearer when the shoe 1 is attached as intended to the foot, and a toe area 35 which is disposed adjacent to the toes of the foot of the shoe wearer when the shoe 1 is attached to the foot as intended.

The bottom side 32 of the shoe sole 3 as well as the bottom side 42 of the shell 4 are configured convexly curved in the heel region 33 and in the ball region 34 in each case in the longitudinal direction of the shoe 1, that is arched outwards in the direction of the ground. Between the heel region 33 and the ball region 34, the bottom side 32 of the shoe sole 3 and also the bottom side 42 of the shell 4 are configured concavely curved in the longitudinal direction of the shoe 1, that is to say inward in the direction away from the ground. From the ball region 34 to the toe region 35, the bottom side 32 of the shoe sole 3 and also the bottom side 42 of the shell 4 are each configured so swung that the toe region 35 does not touch the ground without additional external loading of the shoe 1 when the shoe 1 in the heel region 33 and rests in the ball area of the shoe sole 3 on the ground.

The following definition applies to the entire further description. If reference signs are included in a figure for the purpose of clarity of the drawing, but are not mentioned in the directly related text of the description, their explanation will be referred to in the preceding description of the figures.

2 shows a cross-sectional view of the shoe sole 3, wherein a core 5 embedded in the shell 4 (Balance Driver ™) of the sole body of the shoe sole 3 can be seen. The Core 5 (Balance Driver ™) can be made of a synthetic material, wood, synthetic fibers, metal, something similar or a combination of several materials and has a strength that is higher than the strength of the material of the shell 4. The shoe sole 3 has a foot side 31 and the shell 4 has a foot side 41, which are respectively arranged adjacent to the sole of the foot when the shoe 1 is attached as intended to the foot. The core 5 (Balance Driver ™) comprises a heel part 51 with a foot side 512 and a bottom side 513 and a bale part 52 with a foot side 522 and a bottom side 523, wherein the heel part 51 is made more powerful in cross-section than the bale part 52. The foot side 512 the heel part 51 and the foot side of the ball part 522 are flat. From the foot side 512 of the heel part 51, a curved flank 55 extends at right angles in the direction of the shaft 2 of the shoe 1. The bottom side 513 of the heel part 51 and the bottom side 523 of the ball part 52 are each configured convexly curved, that is to say in the direction of the bottom arched outside. The heel part 51 and the ball part 52 each have a plurality of chambers 511 and 521, which are filled with air or a suitable material. The heel part 51 and the bale part 52 are connected to each other in the region of the foot side 512 and / or of its foot side 522 via a web 53 with cross straps 531. Furthermore, the core 5 (Balance Driver ™) comprises a lip part 54 which extends from the region of the foot side 522 of the ball part 52 in the direction of the toe region 35 of the shoe sole 3.

In Fig. 3, the core 5 (Balance Driver ™) is shown from the bottom side 32 of the shoe sole 3, wherein also the periphery of the bottom side 42 of the shell 4 of the sole body is shown schematically. The heel part 51 and the ball part 52 of the core 5 (Balance Driver ™) are each designed substantially elliptical in this view. The main axis 512 ^' of the substantially elliptical heel part 51 and the main axis 522 ^' of the substantially elliptical ball part 52 are respectively arranged obliquely to a longitudinal axis 3 ^'of the shoe sole 3, wherein the main axes 512 ^' and 522 ^' on an outside of the foot to be assigned outside the shoe sole 3 converge towards one another and thus run away from one another on an inner side of the shoe sole 3 to be assigned to the inner instep of the foot. The longitudinal axis 512 ^'of the heel part 51 of the core 5 (Balance Driver ™) and the longitudinal axis 3 ^{' of} the shoe sole 3 circumscribe an angle α, which is preferably in a range of about 90 ° to about 110 ° and in particular in a range of about 95 ° to about 103 °. The longitudinal axis 522 ^'of the ball portion 52 of the core 5 (Balance Driver ™) and the longitudinal axis 3 ^{' of} the shoe sole 3 circumscribe an angle β, which is preferably in a range of about 70 ° to about 85 ° is, in particular in a range of about 75 ° to about 80 ° and in a particularly preferred embodiment is about 77 °.

The web 53 has on its underside two curvilinear outer bands 532 which converge in a plane against the center of the web 53 in its longitudinal direction and run away against each other against the longitudinal ends of the web 53. Between the outer bands 532, the crosswise arranged straight cross bands 531 are arranged in each case. Such an arrangement of the web 53 allows the design of the web with a relatively high stiffness and a relatively low weight. The lip portion 54 has three obliquely extending in the toe area recesses.

4 shows the core 5 (Balance Driver ™) of the shoe sole 3 in a perspective view. It can be seen that the foot side 512 of the heel part 51 is configured with a bulge 514, which is disposed adjacent to the Sustentaculum tali of the heel bone of the foot, when the shoe 1 is attached as intended to the foot. Furthermore, the two substantially parallel flanks 55 can be seen, which extend from the foot side 512 of the heel region 51 approximately at right angles to the top.

While the invention has been illustrated and described in detail by the figures and the accompanying description, this description and detailed description are to be considered illustrative and exemplary and not limiting as to the invention. It should be understood that those skilled in the art can make changes and modifications without departing from the scope and spirit of the following claims. In particular, the invention also includes embodiments with any combination of features mentioned or shown above or below various embodiments.

The invention also includes individual features in the figures, even though they are shown there in connection with other features and / or are not mentioned above or below. Hereinafter, the term "comprising" and derivatives thereof does not exclude other elements or steps. "Also, the indefinite article includes" a "and derivatives thereof a plurality not from. The functions of several features listed in the claims may be fulfilled by one unit. All reference signs in the claims are not to be understood as limiting the scope of the claims.

Claims

claims

A shoe sole (3) comprising a sole body having a shell (4) and a core (5), the core (5) being embedded in the shell (4), and the core (5) being made of one in relation to Material of the shell (4) is made of a stronger material, characterized in that the core (5) of the sole body comprises a heel part (51) and a bale part (52), wherein the heel part (51) and the bale part (52) each having a in Bottom side (513) arranged convexly curved towards a bottom side (42) of the shell (4), and wherein the bottom side (513) of the heel part (51) of the core (5) along different axes (512) of the heel part (5) 51) of the core (5) is designed differently convexly curved with each changing radii.

2. Shoe sole (3) according to claim 1, wherein a longitudinal axis (512 ^' ) of the heel part (51) of the core (5) and the longitudinal axis (3 ^' ) of the shoe sole (3) an angle (α) rewrite in a Range from about 90 ° to about 110 °.

The shoe sole (3) according to claim 1 or 2, wherein the bottom side (523) of the ball part (52) of the core (5) is different along different axes (522 ^' , 522 ^" ) of the ball part (52) of the core (5) is designed convexly curved with each changing radii.

4. Shoe sole (3) according to one of the preceding claims, wherein a longitudinal axis (522 ^' ) of the ball portion (52) of the core (5) and the longitudinal axis (3 ^' ) of the shoe sole (3) an angle (ß) rewrite the is in a range of about 70 ° to about 85 °.

5. Shoe sole (3) according to one of the preceding claims, wherein the bottom side (42) of the shell (4) in a to the heel part (51) of the core (5) adjacent area substantially corresponding to the bottom side (513) of the heel part ( 51) of the core (5) is configured.

6. Shoe sole (3) according to one of the preceding claims, wherein the bottom side (42) of the shell (4) in an area adjacent to the bale part (52) of the core (5) substantially corresponding to the bottom side (523) of the bale part ( 52) of the core (5) is configured.

A shoe sole (3) according to any one of the preceding claims, wherein the core (5) comprises a web (53) interconnecting the heel part (51) and the bale part (52).

Shoe sole (3) according to claim 7, wherein the heel part (51) of the core (5) and the bale part (52) of the core (5) each have a leg turnable foot side (512, 522) and wherein the web (53) connects the heel part (51) of the core (5) and the bale part (52) of the core (5) to each other at their foot sides (512, 522).

Shoe brine according to one of the preceding claims, in which the heel part (51) of the core (5) has at least one chamber (511).

A shoe sole according to any one of the preceding claims, wherein the ball portion (52) of the core (5) has at least one chamber (521).

Shoe sole (3) according to one of the preceding claims, in which the core (5) comprises a lip part (54) extending from the ball part (52) of the core (5) towards a toe region (35) of the shoe sole (3 ).

12. Shoe sole (3) according to one of the preceding claims, wherein the core (5) of the sole body is made of a synthetic material, made of wood, metal or synthetic fibers.

13. Shoe sole (3) according to one of the preceding claims, wherein the shell (4) of the sole body is made of rubber, polyurethane, leather or rubber.

14. Shoe (1) comprising a shoe sole (3) according to one of the preceding claims and a shaft (2).