EP4066671A1 - Semelle renforcée transversalement pour une chaussure - Google Patents

Semelle renforcée transversalement pour une chaussure Download PDF

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Publication number
EP4066671A1
EP4066671A1 EP21166624.3A EP21166624A EP4066671A1 EP 4066671 A1 EP4066671 A1 EP 4066671A1 EP 21166624 A EP21166624 A EP 21166624A EP 4066671 A1 EP4066671 A1 EP 4066671A1
Authority
EP
European Patent Office
Prior art keywords
sole
rods
sole body
structures
longitudinal direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21166624.3A
Other languages
German (de)
English (en)
Inventor
Christof BÄR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baer GmbH
Original Assignee
Baer GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Baer GmbH filed Critical Baer GmbH
Priority to EP21166624.3A priority Critical patent/EP4066671A1/fr
Publication of EP4066671A1 publication Critical patent/EP4066671A1/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/10—Metal
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/026—Composites, e.g. carbon fibre or aramid fibre; the sole, one or more sole layers or sole part being made of a composite
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/141—Soles; Sole-and-heel integral units characterised by the constructive form with a part of the sole being flexible, e.g. permitting articulation or torsion
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/16—Pieced soles
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/42—Filling materials located between the insole and outer sole; Stiffening materials

Definitions

  • the invention relates to a transversely stiffened sole for a shoe.
  • the sole is constructed in such a way that it has a high level of rigidity transversely to the longitudinal direction of the sole and a high degree of flexibility along the longitudinal direction of the sole.
  • Such soles are, for example, from DE 91 10 849 U1 known, which describes a flexible, sole-like stabilizing element for the production of shoes.
  • the stabilizing element essentially consists of a sole-shaped stamped, spring-hard metal sheet which, thanks to its shape, has a high level of rigidity transversely to the longitudinal axis of the shoe and a high degree of flexibility along the longitudinal axis of the shoe.
  • the sheet metal is profiled like corrugated sheet metal and covered with a flexible rubber or plastic material.
  • a similar sole is in the DE 10 2013 012 097 B4 described, which also includes a damping adaptation pad.
  • the DE 10 2017 116 236 A1 describes an insole or insole for a shoe, which is also designed as a structured sole and is made of spring steel or a comparable plastic material and has a rib-shaped transverse profile running at an angle to the central longitudinal line, which is designed as a wave profile and consists of a number of successive waves .
  • the sole is designed in such a way that it promotes air and moisture circulation.
  • the DE 200 05 683 U1 describes an insole for placement in a shoe. It has one or more means for transverse reinforcement and/or longitudinal flexibility, at least in the forefoot area.
  • the means for transverse reinforcement and/or longitudinal flexibility can be incisions provided in a thickening on the underside of the sole, transverse to the longitudinal direction of the sole. Alternatively or additionally, the means can be indentations formed on the edge of the sole.
  • the object of the present invention is to provide a sole, i. H. a shoe bottom or a part thereof for a shoe, which brings about a cost-effective and easy-to-manufacture transverse stiffening with suitable flexibility in the longitudinal direction of the sole and preferably minimal use of material. Furthermore, it is an object of the invention to specify a method for producing such a sole.
  • the invention is based on a sole for a shoe.
  • the sole can form the bottom of the shoe or be part of the bottom of the shoe.
  • the sole or bottom of the shoe has at least a forefoot area, preferably also a midfoot area and a heel area.
  • a person's foot is positioned over the sole such that their forefoot is over the forefoot area, their midfoot is over the midfoot area, and their heel is over the heel area.
  • the sole also includes a sole body which, at least in or only in the forefoot area, has a number of elongate structures arranged on or in the sole body, such as e.g. B. waves of a wavy profiled plate or individual rods for transverse stiffening of the sole.
  • the elongate structures each have a longitudinal axis.
  • the elongated structures are arranged with their longitudinal axes transverse to the longitudinal direction of the sole, which in particular extends from the heel to the toes.
  • the sole is transversely stiffened by the elongated structures arranged on or in the sole body.
  • the transverse reinforcement and longitudinal flexibility are achieved by the plurality of rods arranged longitudinally, preferably at a distance from one another.
  • the transverse rigidity and longitudinal flexibility are achieved by the corrugations arranged one after the other in the direction of corrugation.
  • a corresponding method for producing a sole for a shoe includes the step that, at least in a forefoot area, a plurality of elongated structures, such as e.g. B. waves of the wavy profiled plate or the individual rods, for transverse reinforcement of the sole on or in a sole body are arranged so that the longitudinal axes of the rods are arranged transversely to the longitudinal direction of the sole.
  • a plurality of elongated structures such as e.g. B. waves of the wavy profiled plate or the individual rods, for transverse reinforcement of the sole on or in a sole body are arranged so that the longitudinal axes of the rods are arranged transversely to the longitudinal direction of the sole.
  • the individual rods can be fitted with one or more flexible elements (not belonging to the sole body), such as e.g. B. a band or rope or a textile layer, to position the rods to each other and to simplify the handling when manufacturing the sole.
  • the bars can be attached to the underside of an element to be attached or attached over the sole body, such as an insole, with the bars being arranged in the indentations of the sole body.
  • the insole and/or the rods can be cohesively connected to the sole body, e.g. B. glued, be or become.
  • elongate structures particularly rods or shafts, i. H. their longitudinal axes, in particular of the forefoot area
  • all or part of the elongate structures such as e.g. B. at least two, be arranged parallel to each other.
  • several elongate structures, in particular all or part of the elongate structures, of the forefoot area can be arranged relative to one another in such a way that the longitudinal axes of these structures intersect at a location, in particular medial, outside the sole.
  • a mixture of parallel and non-parallel elongate structures is also possible.
  • the longitudinal axes In order for the longitudinal axes to cross, they can intersect or run skewed towards one another.
  • At least two elongate structures of the forefoot area can be parallel to one another, wherein at least two elongate structures of the forefoot area can be arranged such that the longitudinal axes of these elongate structures cross at the point lying outside the sole.
  • the parallel and/or non-parallel arrangement of the elongate structures in the forefoot area can advantageously influence the rolling behavior of the forefoot area of the sole and thus also of the foot.
  • one, several or each of the elongate structures in the forefoot area can be inclined with their longitudinal axes in relation to the longitudinal direction of the sole in such a way that the lateral end of each of these structures is closer to the toe end of the sole than the medial end.
  • the rolling behavior of the sole can also be advantageously influenced.
  • the bars are spaced apart from one another in the longitudinal direction of the sole.
  • the rods or part of the rods, such as. B. at least two bars of the forefoot area can be arranged parallel to one another.
  • the longitudinal flexibility in relation to the transverse stiffness and thus the rolling behavior of the sole can be influenced in a simple way during the manufacture of the shoe, without a new stamping tool being required for this, as is the case with wavy profiled plates or corrugated metal sheets from the prior art is required.
  • elongate structures in particular rods or shafts
  • the longitudinal width and/or the height of the rod may decrease as it progresses from one end to the other.
  • the wavelength extending in the corrugation direction and/or the corrugation height may decrease as it progresses from one end to the other end of the corrugation.
  • all or part of the elongate structure may be non-tapered, i. H. be formed with a constant width and / or height.
  • the longitudinal width and/or height of the rod may be constant or substantially constant as it extends from one end to the other end.
  • the wavelength extending in the corrugation direction and/or the corrugation height may be constant or substantially constant as it progresses from one end to the other end of the corrugation.
  • the tapering and/or non-tapering arrangement of the elongated structures in the forefoot area can advantageously influence the rolling behavior of the forefoot area of the sole and thus also of the foot.
  • At least two, preferably at least three, four or five elongate structures, in particular rods or corrugations, can be provided in the forefoot area. It is also preferred that the number of elongate structures in the forefoot area does not exceed ten.
  • the material of the rods can differ from the material of the sole body.
  • the material of the rods can have a higher modulus of elasticity than the material of the sole body. Due to the higher modulus of elasticity, the rigidity of the sole in the transverse direction can be increased compared to a sole without such rods.
  • Material of the sole body can be arranged between adjacent bars, as a result of which the longitudinal flexibility is primarily brought about by the material of the sole body between the bars.
  • the material of the sole body can have a modulus of elasticity of 65 to 2,000 MPa, for example.
  • the material of one of the rods or rods can have a modulus of elasticity of 3,100 to 88,000 MPa, for example.
  • the hardness of the material of the bars can be higher than that of the sole body.
  • the sole body, in which the rods are arranged, can preferably be formed from a plastic or a polymer.
  • a suitable plastic are: ethylene vinyl acetate copolymer (EVA), polyurethane (PUR), rubber, etc.
  • EVA ethylene vinyl acetate copolymer
  • PUR polyurethane
  • the rods can be made of metal or a plastic or polymer, for example.
  • the rod material are: Polyamide (PA), in particular PA 6.6, PA 6.6, glass fiber reinforced plastic (GRP), in particular GRP10-50, polycarbonate (PC), carbon fiber reinforced plastic (CFRP), etc.
  • the cross section of the rods can be round or circular, square or rectangular, trapezoidal, oval or the like.
  • the length of the rods or indentations in the sole body into which the rods are inserted can be dimensioned such that between a medial end of the rod and the medial edge of the sole or sole body and between a lateral pointing end of the rod and the lateral edge of the sole or the sole body, there is an edge which has, for example, a width from 2 to 15 mm.
  • the edge can in particular be designed in the shape of a bowl.
  • the length of the bars and/or the indentations can be dimensioned in such a way that the bars reach the medial and/or lateral outer surface of the sole.
  • the rods in particular their end faces, can then be visible laterally from the outside on the edge or edges of the sole and can be perceived as functional elements, for example.
  • the in particular medial and/or lateral outer surfaces of the sole can be made of a transparent plastic that covers the end faces of the rods, but still allows the end faces of the rods to be seen from the outside.
  • the sole body can have a plurality of depressions, preferably pointing upwards, alternatively downwards, in particular elongated, wherein one of the bars is arranged in each of the depressions and is in particular connected to the sole body in a materially and/or form-fitting manner.
  • the depressions are preferably designed to complement the rod provided for this purpose.
  • the indentations are located in the forefoot area of the sole body.
  • a rod arranged in its recess can be glued to the sole body.
  • the sole body can enclose the rod or engage in the rod in such a way that the rod is prevented from falling out of the depression.
  • the sole body can have a plurality of indentations in the manufacturing process, or the sole body can be provided or formed with a plurality of indentations, in particular primary formed or injection molded.
  • one of the rods can be inserted into the wells and bonded there in particular in a materially bonded manner, e.g. B. glued, and / or form-fitting, for example snapped, are connected to the sole body.
  • the rods or the wavy profiled plate are introduced into a mold, in particular an injection mold, and encased therein by a material to form a sole body, in particular overmoulded.
  • the rods can be encased by the sole body, in particular they can be overmoulded with the material of the sole body.
  • the encasing or overmoulding of the rods with the material of the sole body has the advantage that the rods no longer have to be inserted separately into the depressions after molding and connected there to the sole body in a materially or form-fitting manner.
  • the injection molding tool used to mold the bars with the material of the sole body are wrapped, more complex to produce.
  • the tooling for the method of providing the sole body with a plurality of indentations and inserting the posts into the indentations after molding is less expensive, but eliminates the step of inserting the posts into the sole body.
  • the downward-pointing surface of the rods is concave, in particular curved about an axis of curvature running parallel to the longitudinal axis of the rod.
  • the bottom of the in particular groove-shaped depression can be complementary to the downward-facing surface, i. H. be convex, formed and bonded to the concave surface or abut against the concave surface. This saves material and weight.
  • the concave design of the underside of the bars gives the sole similar properties to using a wavy profiled plate.
  • the upwardly facing surface of the rods may be convex or planar, or a mixture of convex and planar.
  • the surface of the bar or bars pointing upwards can have a flat partial surface, with a convex partial surface adjoining both sides of the flat partial surface.
  • the upwardly facing surface of the slats is flush or approximately flush with the upwardly facing surface of the sole body.
  • the sole body in which the bars are arranged can be a midsole, an insole or an insole.
  • a shoe bottom can e.g. B. an outsole or outsole with a profile on its underside, a midsole arranged over the outsole and optionally an insole or insole arranged over the midsole.
  • the insole can be arranged over the inner sole.
  • Embodiments are shown in the figures in which the elongate structures are rods 30 .
  • a wavy profiled plate can be provided, in which the individual waves are the elongate structures 30.
  • several corrugations of the forefoot area can be arranged in such a way that their longitudinal axes cross medially outside the sole 1 and/or taper from the lateral to the medial end.
  • a shoe bottom or sole 1 which has an outsole or outsole 20 and a midsole 10 .
  • the underside of the midsole 10 is joined, in particular glued, to the top of the outsole 20 .
  • the outsole 20 has a profile 21 on its underside.
  • the in the Figures 2 to 4 Rods 30 shown can, for example, in the soles from the figures 1 and 5 Find application.
  • the midsole 10 has a forefoot area, a midfoot area and a heel area.
  • the forefoot area of the midsole 10 has a plurality of elongated indentations 11 which extend transversely to the longitudinal direction of the midsole 10 with their longitudinal direction.
  • the depressions 11 are designed to complement the bars 30 .
  • one of the four rods 30 is arranged here.
  • the depressions 11 are groove-shaped and have preferably been formed during the original molding, in particular injection molding, of the midsole 10 .
  • the groove-shaped depressions 11 are open towards the upper side of the midsole 10, so that the rods 30 can be inserted.
  • the bars 30 indicate in the execution figure 1 Longitudinal axes 31 which are arranged parallel to one another. The same applies to the depressions 11. Instead of being parallel, the rods 30 or the depressions 11 can alternatively be arranged in such a way that their longitudinal axes 31, as in FIG figure 5 cross over outside of sole 1, particularly on the medial side of sole 1.
  • the rods 30 and the indentations 11 each have a medial end 34 and a lateral end 35 .
  • the medial end 34 is spaced from the medial outer edge of the forefoot portion of the midsole 10 by a medial rim.
  • the lateral end 35 is spaced apart from the lateral outer edge of the forefoot region of the midsole 10 by means of a lateral margin.
  • the rods 30 are in the form of a ring section in cross section, in particular a circular ring section.
  • the downward-facing surface 32 is concave in cross-section perpendicular to the longitudinal axis 31 .
  • the bottom of the groove-shaped recess 11 is convex.
  • the convex surface can be glued to the concave surface.
  • a layer 12 can be provided on the upper side, which is flush or at least approximately flush with the surface of the midsole 10 pointing upwards.
  • FIG 3 An alternative embodiment of a rod 30 is shown which differs from the embodiment figure 2 differs in that the rod 30 has a flat surface 33 on its upper side, which is adjoined by curved surfaces 12 at the sides.
  • the area between the side walls of the groove 11 and the flat surface 33 is filled with a filling material 13 .
  • the filling material 13 is approximately flush with the upwardly facing surface of the midsole 10 and the surface 33 .
  • figure 4 shows a further embodiment, wherein the bar 30 has a flat surface 33 on its upper side, which is flush or approximately flush with the upwardly facing surface of the midsole 10 and extends from one groove flank to the other groove flank. As a result, the entire groove 11 is at least essentially filled by the rod 30 .
  • a heel support element 40 is optionally provided on the midsole 10 in the heel area, which element has a raised edge that encloses the heel laterally.
  • a further sole, in particular an insole, can be arranged on the midsole 10, for example.
  • the longitudinal axes 31 of the rods are arranged non-parallel to each other.
  • the angle ⁇ between the first and the last of the rods 31 can, for example, be in an interval greater than 0° and less than or equal to 15°.
  • the angle ⁇ 1 , ⁇ 2 , ⁇ 3 between adjacent rods 30 can, for example, be in an interval greater than 0° and less than or equal to 10°.
  • the sum of the angles ⁇ 1 , ⁇ 2 , ⁇ 3 between adjacent bars 30 results in the angle ⁇ between the first and the last bar 30 in the forefoot area.
  • the rods 30 taper from their lateral ends to their medial ends, in particular at the angle ⁇ .
  • the angle ⁇ can be in an interval greater than 0° and less than or equal to 10°.
  • an insole can be equipped with the bars 30 or alternatively with the wavy profiled plate.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP21166624.3A 2021-04-01 2021-04-01 Semelle renforcée transversalement pour une chaussure Pending EP4066671A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21166624.3A EP4066671A1 (fr) 2021-04-01 2021-04-01 Semelle renforcée transversalement pour une chaussure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21166624.3A EP4066671A1 (fr) 2021-04-01 2021-04-01 Semelle renforcée transversalement pour une chaussure

Publications (1)

Publication Number Publication Date
EP4066671A1 true EP4066671A1 (fr) 2022-10-05

Family

ID=75377645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21166624.3A Pending EP4066671A1 (fr) 2021-04-01 2021-04-01 Semelle renforcée transversalement pour une chaussure

Country Status (1)

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EP (1) EP4066671A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1701611A (en) * 1927-07-22 1929-02-12 Hood Rubber Co Inc Sole for boots and shoes
US5025573A (en) * 1986-06-04 1991-06-25 Comfort Products, Inc. Multi-density shoe sole
DE9110849U1 (de) 1991-03-20 1992-01-09 Mayer, Helmut, 73342 Bad Ditzenbach Flexibles sohlenartiges Stabilisierungselement für Schuhe
DE20005683U1 (de) 1999-11-02 2000-09-07 Mayer Helmut Brandsohle und Anordnung derselben in einem Schuh
US20070169379A1 (en) * 2006-01-24 2007-07-26 Nike, Inc. Article of footwear having a fluid-filled chamber with flexion zones
US20100299965A1 (en) * 2009-05-29 2010-12-02 Nike, Inc. Article Of Footwear With Multi-Directional Sole Structure
EP2689681A1 (fr) * 2012-07-27 2014-01-29 Salomon S.A.S. Chaussure à semelage amélioré
US20160029741A1 (en) * 2014-07-30 2016-02-04 Nike, Inc. Article Of Footwear With Banking Midsole With Embedded Resilient Plate
US20170245590A1 (en) * 2016-02-29 2017-08-31 Nike, Inc. Layered Sole Structure For An Article Of Footwear
DE102017116236A1 (de) 2017-07-19 2019-01-24 Mayer GbR (Vertretungsberechtigter Gesellschafter: Herr Helmut Mayer, 88045 Friedrichshafen) Einlege- oder Brandsohle mit Druckbelüftung
DE102013012097B4 (de) 2013-07-22 2019-11-07 Mayer GbR (Vertretungsberechtigter Gesellschafter: Herr Helmut Mayer, 88045 Friedrichshafen) Belastungsadaptierende Struktursohle als kontrollierendes Dämpfungssystem

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1701611A (en) * 1927-07-22 1929-02-12 Hood Rubber Co Inc Sole for boots and shoes
US5025573A (en) * 1986-06-04 1991-06-25 Comfort Products, Inc. Multi-density shoe sole
DE9110849U1 (de) 1991-03-20 1992-01-09 Mayer, Helmut, 73342 Bad Ditzenbach Flexibles sohlenartiges Stabilisierungselement für Schuhe
DE20005683U1 (de) 1999-11-02 2000-09-07 Mayer Helmut Brandsohle und Anordnung derselben in einem Schuh
US20070169379A1 (en) * 2006-01-24 2007-07-26 Nike, Inc. Article of footwear having a fluid-filled chamber with flexion zones
US20100299965A1 (en) * 2009-05-29 2010-12-02 Nike, Inc. Article Of Footwear With Multi-Directional Sole Structure
EP2689681A1 (fr) * 2012-07-27 2014-01-29 Salomon S.A.S. Chaussure à semelage amélioré
DE102013012097B4 (de) 2013-07-22 2019-11-07 Mayer GbR (Vertretungsberechtigter Gesellschafter: Herr Helmut Mayer, 88045 Friedrichshafen) Belastungsadaptierende Struktursohle als kontrollierendes Dämpfungssystem
US20160029741A1 (en) * 2014-07-30 2016-02-04 Nike, Inc. Article Of Footwear With Banking Midsole With Embedded Resilient Plate
US20170245590A1 (en) * 2016-02-29 2017-08-31 Nike, Inc. Layered Sole Structure For An Article Of Footwear
DE102017116236A1 (de) 2017-07-19 2019-01-24 Mayer GbR (Vertretungsberechtigter Gesellschafter: Herr Helmut Mayer, 88045 Friedrichshafen) Einlege- oder Brandsohle mit Druckbelüftung

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