HUE026785T2 - Shoe - Google Patents

Description

Shoe

The invention relates to a shoe having: a) an upper part tor accommodating a foot, b) an ouf&$e,: having a sole: base which Is curved essentially convexly in the longitudinal direction. c) a midsole, which Is arranged between the upper part and outsole.

Shoes are dearly known from prior use. Likewise known, for example, from EP ! 124 462 PL are so-called MBT (Masai Barefoot Technology) shoes which have a sole shape which is rounded convexly in the walking direction and has a Soil heel part inserted therein. This soft shoe-based structure is intended to reduce the support given to the foot Inring walking and to strengthen the muscles, because the body has to be actively held in a state of equilibrium. KR 100 780 556 B! discloses as MBT shoe in which, the shoe sole structure has a plurality of materials having different properties, in order to achieve the desired destabilizing properties

It Is m object of the invention to create a shoe of the type mentioned in the introduction which, in a straightforward, efficient and cost-effective manner, allows a destabtIMng gait pattern along the lines of Masai Barefoot Technology.

The object Is achieved by the invention, for a shoe mentioned in the introduction, by the characterizing features of the main claim.

First of all, an explanation should he given of some of the terms used within the context of the invention, Â shoe is any item of footwear suitable for walking purposes. The term covers shoes which are dosed and which are open, for example sandals, lire upper patt is that region of the shoe which encloses the foot; ft may consist of leather, plastics, a woven fabric or other suitable materials

The outsole is in contact with the underlying surface. If Is curved convexly in the longitudinal direction, and this allows a rollhg gait pattern. It is possible for the curvature to extend continuously over the entire length of the outsole or to have regions of discontinuity. A midsole is ananged beÉæeen A® upper part and outspte This midsole may be designed, lor example, té lbrm Ae foot bed. it is also possible, Ar example, lor m inner sole, an insole or the like to be arranged above the .midsole

The outsoie and midsole enclose between them a region of cavities winch can he compressed by As user's weight As a remit of these cas nies, the corresponding region deforms under the weight of the user as be is walking, and thus forms the region which can be deformed during walking and thus destsbiliz.es the .foot. Enclose between them means that the cavities axe arranged almve the underside of the outsoie and beneath the: upper side of Ae midsole. They can extend into the material of the outsoie, into the material of the aiMsole or into both regions. The cot® of the invention is for the destabilizing region of the shoe not to be Armed by a separate material which is arranged as a soft insert in the sole; rather, it is formed in a straightforward manner by a partially hollow eonfiguraUOn of dm mÊmù of Ae outsoie and/or nudsole. The region i s arranged in the rear two tMrds of Ae Aoe, preferably in Ae region of the rear half of the shoe, its compressibility thus destabilizes, in particular, Ae heel region of Ae foot.

The compressible cavities have an extern, in the stand-up direction (the stand-up direction is the normal or perpendicular to the standing surface of the sloes) of the shoe, which, as seen from front to rear in the longitudinal direction in the region of compressible cavities, first of ail increases, passes through & maximum, and then decreases again * In; a vertical longitudinal section. Als region of compressible cavities may Aus be. Ar example, of approximately cushion form, in the longitudinal direction, the region of compressible caviies preferably has an extent of 20 to 50%, further preferably 25 to 40%, further preferably 25 to 35%, of the overall length of the shoe.

In the transverse direction (in the direction of the width of the shoe), this region of compressible cavities rnay have an extent of 60 to 100%, preferably ?§ to 100%, further preferably 90 to 100%, of the overall width of the shoe. 100% means that the region extends essentially over the entire width of the shoe, wherein, of course, allowances should be made tor the feet that the side region of the outsoie and mid sole is preferably closed, that is to say the cavities are not open to the side or in the outward direction. Üe volume of a. cavity is preferably between 0,1 api t|t p:*, teher preferably 0 2 and 8 cm2 further preferably 0.2 and 5 cm'5, in the ease of the region of compressible cavities being configured approximately in cushion form, usually relatively small cavities of lor example* between 0.1 and 0.2 or 0.3 cnf are located in the region of the corners. In the region of the front and rear peripheries, the volumes of the cavities may be, lor example, between 0.4 and 0.$ cm3. In a central region, the volume may be, for example, between 2 and 8 cor, preferably between 3 and 7 cnr\ further preferably between 4 and 6 cm2, in particular around approximately 5 cm3.

Thé region of compressible cavities has a plurality of crosspieces which prefect in the stand-up direction of the shoe, form the walls of the cavities and thus enclose cavities between them; The crosspieces may run preferably essentially in the longitudinal direction and/or transverse direction of the shoe.

According to the invention, the spacing between the crosspieces may be Ô.S to 2.5 era, preferably 1 to 2 cm

The height of the crosspieces in the region of greatest height (that is to say approximately in the center if the region is of cushion-form configuration) may be between 0. 5 and 2 5 cm, preferably 1 and 2 cm. The thickness of the crosspieces (in the sole plane) may preferably be between 2 and 6 mm, father preferably 2 and 4 mm.

The crosspieces, according to the invention, are connected integrally to the outsolc. This means that the crosspieces are part of the materia) of the obtsole. The compressibility of the region of compressible cavities can also be adjusted by the selection of material for these crosspieces (which are usually part of the outsolc or midsole). 1er example, this material may have a Shore A. hardness of 4P to 80, preferably 50 to 70.

The outsole and/or the midsole may consist of a polymer material. This may he constituted by rigid or foamed plastics, an example of a suitable possible polymer material being ethylene vinyl acetate (1¾¾ which can be obtained under the name Phylon.

Two exemplary embodiments of the invention are explained teeinbelow with reference to the drawings, in which;

Figure I shows a longitudinal section through a shoe according to the invention; figure 2 shows, schematically, the construction of the outsole, tmdsOle, inner soie and insole; figure 3 shows a view of the botsole with dimensioning; figure 4 shows a plan view of the outsole with dimensioning; and f igure s shows, schematically, the construction of the outsole and midsole for a second etnfeodlmeM of the invention.

The shoe according to the invention has an upper part 1 on a sole structure, which will he explained in more detail hereinbelow. An outsole 2 forms the surface by which the shoe stands oh the underlying surface. It can be seen itat the walking surface of the outsole 2 is curved convexly essentially in the longitudinal direction. It can be seen that this curvature is not completely continuous; rather, the curvature of the outsole is discontinued, and replaced by an essentially planar region, at 3.

In the rear region of the outsole 2, the Inder has upwardly oriented crosspieces 4 which run longitudinally and transversely ^see figure 2) and enclose cavities 5 between them. The region of these crosspieces 4-Äh the cavities B enclosed therein gives an approximately eishion-iorm ( §ee figure 2) region of enhanced compliance A midsole 6 is arranged above the outsole 2. In the region which is oriented toward the outsole 2, the midsole 6 is contoured such that it accommodates the region of compressible cavities and terminates essentially with the upper edge of the crosspieces 4. An inner soie ? and, optionally, an insole 8 (possibly lor configuring the foot beds are also arranged above the midsoie 6.

The cavities 5 are compressible when the shoe is being subjected to loading by the user. This means that the crosspieces 4 deform under compressive loading be above and the sise of the cavities 5 decreases in the process.

The individual constituent parts of the shoe are connected, for example adhesively bonded, to one another. In the exemplary embodiment, it. is possible for the outsole 2 to consist of a. suitable material such as, for example, rubber with a Shore A hardness of 61 and for the midsoie 6 to consist of a polymer such as, for example, ethylene vinyl acetate (trade name Phylon) with a Shore A hardness of 55

Figures 3 and 4 show varions dimensions of an outsoie and of the region of compfeasible cavities which is arranged in the out sole. These dimensions sa^ply to an exemplary embodiment for shoe sise 43. áll the dimensions are given in mm. 1 can be seen in figures 3 and 4 that for e^mpte, the volume of a easily in the cosier Is approximately J.7 cm' (17 y 19 x 17.5 mm). The thickness of the crosspieces 4 in ibis exemplary embodiment is approximately 3 mm.

Figure 5 shows, schematically, the outsoie 2 ah# midsole 6 for a second embodiment of the invention. This embodiment corresponds to the first embodiment, but the omsole %. has a second region of compressible cavities 9 in the front region. In the region which is oriented toward the outsoie 2, the midsole 6 is contoured such that if accommodates the appropriate region 5 or 9 of compressible cavities, and terminates essentially with the upper edge of the crosspieces 4, both in the Iront region and in the rear region.

Claims (11)

PATIENT INDIVIDUAL POINTS 1. Shoe having a) a top portion (1) for receiving the foot, b) a wearer (2) having a longitudinally convexly curved wood core, (o) a layer (6) of a stitch (6) of the upper and the lower leg, which is a foot pad (6). 2) and the base layer (6) seal the area of the cavities (5) compressible by the weight of the user in the longitudinal direction of the shoe in the rear and / or middle third, which compressible cavities (5) have an extension in the upward direction of the shoe which is compressible. the area of the cavities (5) extends from the front to the front for the first time in the longitudinal direction, passes through a maximum and then decreases, characterized in that the area of the compressible cavities (5) has a plurality of ribs rising in the upward direction of the shoe which enclose the cavities themselves. and that the ribs (4) are connected in one piece to the base (2). Shoe according to claim 1, characterized in that the area of the compressible cavities (5) is located in the area of the rear of the shoe. Shoe according to Claim 1 or 2, characterized in that the area of the compressible cavities (5) extends in the longitudinal direction from 20 to 50% of the total length of the shoe, preferably 25 to 4%, in a more preferred manner. 25-35% of. 4. Referring to 1-3. Shoe according to one of Claims 1 to 5, characterized in that the area of the compressible cavities: (5) extends transversely to the overall width of the shoe at 88-1%, preferably 75-100%, more preferably 90-100%. 5 Refer to 1-4. Shoe according to one of the claims, characterized in that the volume of a cavity is between 0.1 and 10 cirri, preferably between 0.2 and 8 cm3, more preferably between 0.2 and 5 cm3, 6, 1-5. The shoe according to one of claims 1 to 4, characterized in that the ribs (4) extend substantially in the longitudinal direction and / or in the transverse direction of the shoe. 7. Shoe according to one of Claims 1 to 3, characterized in that the distance between the ribs (4) is 0.5 to 2.5 cm, preferably 1 to 2 cm. 8. Referring to Figures 1-7. Shoe according to one of Claims 1 to 5, characterized in that the maximum height of the ribs is 0.5-2.5 cm, preferably 1-2 cm. 9. Shoe according to one of Claims 1 to 3, characterized in that the ribs have a thickness of 2-8 mm, preferably 2-4 mm. Shoe according to one of Claims 1 to 9, characterized in that the wearer (2) and / or the sole (6) is made of a polymeric material. Shoe according to claim 10, characterized in that the polymeric material comprises ethylene vinyl acetate (EVA).