EP3790423B1 - Sole of a shoe, particularly an athletic shoe - Google Patents

Sole of a shoe, particularly an athletic shoe Download PDF

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Publication number
EP3790423B1
EP3790423B1 EP18724204.5A EP18724204A EP3790423B1 EP 3790423 B1 EP3790423 B1 EP 3790423B1 EP 18724204 A EP18724204 A EP 18724204A EP 3790423 B1 EP3790423 B1 EP 3790423B1
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EP
European Patent Office
Prior art keywords
sole
recesses
recess
group
largest dimension
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EP18724204.5A
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German (de)
French (fr)
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EP3790423A1 (en
Inventor
Matthias Hartmann
Reinhold Sussmann
Federico CASALEGNO
Hunmin KOH
Will Walker
Yihyun LIM
Yasaman TAHOUNI
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Puma SE
Massachusetts Institute of Technology
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Puma SE
Massachusetts Institute of Technology
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Priority to PL18724204T priority Critical patent/PL3790423T3/en
Publication of EP3790423A1 publication Critical patent/EP3790423A1/en
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    • 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
    • A43B13/18—Resilient soles
    • A43B13/181—Resiliency achieved by the structure of the sole
    • 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
    • A43B13/12—Soles with several layers of different materials
    • A43B13/125—Soles with several layers of different materials characterised by the midsole or middle layer
    • 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
    • A43B13/18—Resilient soles
    • A43B13/187—Resiliency achieved by the features of the material, e.g. foam, non liquid materials

Definitions

  • the invention relates to a sole of a shoe, in particular a sports shoe, the sole having an extension in the longitudinal direction and an extension in a vertical direction perpendicular thereto, a number of recesses being made in the sole, the recesses extending in a transverse direction perpendicular to the longitudinal direction and extend perpendicular to the vertical direction and at least partially penetrate the sole, a first group of recesses being present which are larger in the vertical direction than in the longitudinal direction without external forces on the sole, with a second group of recesses being present which are without external forces on the Soles are designed to be smaller in the vertical direction than in the longitudinal direction, at least one row of recesses being arranged next to one another at least in sections in the longitudinal direction, with a recess of the second group being arranged between two recesses of the first group, at least in sections se an upper row of recesses and a lower row of recesses is arranged one above the other in the vertical direction.
  • Another sole is from the U.S. 2,983,056 A known.
  • the sole body is provided here in the transverse direction with a multiplicity of recesses which are designed to be circular on the side of the sole, that is to say in the transverse direction.
  • the recesses are designed with different diameters, one with a smaller diameter being arranged between two recesses with a larger diameter. With such recesses it is possible to influence the spring or damping behavior of the sole.
  • the invention is based on the object of developing a shoe sole of the type mentioned at the beginning in such a way that it becomes possible to be able to influence the spring behavior and the damping behavior of the sole in a desired, predetermined manner in an improved manner.
  • the invention achieves the object according to independent claim 1.
  • the solution to this problem by the invention is characterized in that the two rows are arranged relative to one another in such a way that a recess of the first group is vertically above a recess of the second group, with the largest dimension of a recess being converted into one without external forces on the sole first direction is at least 150% of the largest dimension of the recess in a second direction, which is perpendicular to the first direction, and wherein the recesses, viewed in the transverse direction, have a circumferential contour that has the shape of a figure eight.
  • the recesses preferably at least partially penetrate the sole completely in the transverse direction.
  • the recesses preferably extend along a straight line, so they are straight or linear.
  • the largest dimension of a recess in a first direction is preferably at least 180% of the largest dimension of the recess in a second direction, which is perpendicular to the first direction.
  • the recess has in this case in one
  • the central area preferably has a constriction with a minimal extent which is at most 90%, preferably at most 80%, of the largest dimension in the second direction.
  • the largest dimension is preferably between 8 mm and 18 mm, particularly preferably between 10 mm and 15 mm.
  • the wall thickness of the material of the sole remaining between the recesses is preferably essentially constant, at least in sections. In this respect, it is preferably provided that the wall thickness is at least partially in a range between 80% and 120% of an average value of the wall thickness defined area of the lateral surface of the sole is determined).
  • the sole is preferably made of polyurethane material, thermoplastic polyurethane (TPU) or thermoplastic elastomer (TPE) or at least comprises this material.
  • the material of the sole is preferably foamed.
  • the material of the sole preferably has a density between 0.20 and 0.50 g / cm 3 . It preferably has a hardness between 30 and 50 Asker C.
  • the sole can be designed as a midsole. It is possible that an outsole is arranged under the midsole.
  • the recesses are preferably arranged in the longitudinal direction over at least 33% of the entire longitudinal extent of the sole. They are preferably arranged at least in a midfoot area and a rear foot area of the sole.
  • the proposed design of the sole makes it possible to influence the control of the spring and damping properties or the hardness of the sole in a simple manner. Due to the design of the recesses, when the sole is subjected to the weight of the wearer of the shoe who is provided with the sole, a desired deflection can be realized.
  • the present invention is based on the use of so-called “mechanical meta material”, in which it is provided that various rows of openings (known here are above all round or oval recesses in cross section) of different sizes are or are made in the sole. are to achieve a certain spring or damping behavior of the sole.
  • “Engineered Damping” can thus take place, in which the spring or damping properties obey a desired characteristic.
  • FIG. 1 A sole 1 can be seen that extends in the longitudinal direction L (corresponding to the longitudinal axis of the shoe that is provided with the sole) and in the vertical direction V (the vertical direction V indicates the direction when the shoe or the sole is used as intended stands on the floor). Furthermore, the sole 1 extends in a transverse direction Q which is perpendicular both to the longitudinal direction L and to the vertical direction V.
  • the sole 1 is designed as a midsole, on the upper side of which the upper (not shown) is attached in a known manner.
  • An outer sole 6 is attached to the underside of the sole.
  • Recesses 2 are incorporated into the sole 1. These recesses preferably extend in the transverse direction Q over the entire width of the sole 1. Details on the design and arrangement of the recesses 2 can be found in FIG Figures 2 and 3 evident. This shows Figure 2 the detail "X" according to Figure 1 and Figure 3 the geometric design of a preferred embodiment of a single recess 2.
  • FIG. 2 in the synopsis with Figure 1 can be seen, two rows 3 and 4 of recesses 2 are made in the sole 1.
  • Two groups of recesses 2 are used: A first group of recesses 2 'is designed in such a way that - without external forces on the sole 1 - the recesses 2' are made larger in the vertical direction V than in the longitudinal direction L. A second group is then present Recesses 2 ′′ are present, which - again without external forces on the sole 1 - are made smaller in the vertical direction V than in the longitudinal direction L.
  • the individual recesses 2 ′, 2 ′′ are each designed in such a way that, viewed in the transverse direction Q, they have the shape of an "eight" Figure 3 Referenced.
  • Each recess 2 ', 2 " accordingingly has a largest dimension G in a first direction R1 (which is preferably between 10 mm and 15 mm); in a second direction R2, which is perpendicular to the first direction R1, the largest dimension is Recess 2 ', 2 "designated by K.
  • the dimension G is at least 150% (particularly preferably even at least 180%) of the dimension K.
  • the recess 2 ', 2 has a constriction 5 (which results in the design in the form of a" figure eight "), so that the recess 2', 2" here has a minimal extension k Has.
  • This minimum extension k is preferably at most 90%, particularly preferably at most 80%, of the dimension K.
  • FIG Figure 2 This is shown in various places. If you determine an (arithmetic) mean value between the respective wall thicknesses t over a selected area (such as the area shown in Figure 2 is shown), it is preferably provided that the wall thickness t remains essentially constant. Specifically, this can be quantified in such a way that the wall thickness t at each point of the selected area is not less than 80% and not more than 120% of the mean wall thickness t.
  • the proposed configuration can ensure that the sole of the shoe has a special spring or damping behavior, with a predetermined collapse of the sole as a result of the recesses, particularly when the weight of the wearer of the shoe is applied, which provides a comfortable wearing experience.

Description

Die Erfindung betrifft eine Sohle eines Schuhs, insbesondere eines Sportschuhs, wobei die Sohle eine Erstreckung in Längsrichtung sowie eine Erstreckung in eine hierzu senkrechte Vertikalrichtung aufweist, wobei in die Sohle eine Anzahl von Ausnehmungen eingebracht ist, wobei sich die Ausnehmungen in eine Querrichtung senkrecht zur Längsrichtung sowie senkrecht zur Vertikalrichtung erstrecken und die Sohle zumindest teilweise durchsetzen, wobei eine erste Gruppe Ausnehmungen vorhanden ist, die ohne äußere Kräfte auf die Sohle in Vertikalrichtung größer ausgebildet sind als in Längsrichtung, wobei eine zweite Gruppe Ausnehmungen vorhanden ist, die ohne äußere Kräfte auf die Sohle in Vertikalrichtung kleiner ausgebildet sind als in Längsrichtung, wobei zumindest abschnittsweise in Längsrichtung nebeneinander mindestens eine Reihe Ausnehmungen angeordnet ist, wobei zwischen zwei Ausnehmungen der ersten Gruppe eine Ausnehmung der zweiten Gruppe angeordnet ist, wobei zumindest abschnittsweise in Vertikalrichtung übereinander eine obere Reihe von Ausnehmungen und eine untere Reihe von Ausnehmungen angeordnet ist.The invention relates to a sole of a shoe, in particular a sports shoe, the sole having an extension in the longitudinal direction and an extension in a vertical direction perpendicular thereto, a number of recesses being made in the sole, the recesses extending in a transverse direction perpendicular to the longitudinal direction and extend perpendicular to the vertical direction and at least partially penetrate the sole, a first group of recesses being present which are larger in the vertical direction than in the longitudinal direction without external forces on the sole, with a second group of recesses being present which are without external forces on the Soles are designed to be smaller in the vertical direction than in the longitudinal direction, at least one row of recesses being arranged next to one another at least in sections in the longitudinal direction, with a recess of the second group being arranged between two recesses of the first group, at least in sections se an upper row of recesses and a lower row of recesses is arranged one above the other in the vertical direction.

Bei Sportschuhen wird versucht, durch die geometrische Gestaltung der Sohle dieser ein bestimmtes und gewünschtes Federverhalten zu geben. Hierunter ist zu verstehen, dass die Sohle in vertikaler Richtung bei der Beaufschlagung mit der Gewichtskraft des Trägers des Schuhs ein gewünschtes Verformungsverhalten aufweist, insbesondere eine bestimmte Kennlinie zwischen beaufschlagender Kraft und Dehnung in vertikaler Richtung.In the case of sports shoes, attempts are made to give the sole a specific and desired spring behavior through the geometric design of the sole. This is to be understood as meaning that the sole has a desired effect in the vertical direction when the weight of the wearer of the shoe is applied Has deformation behavior, in particular a certain characteristic curve between the applied force and expansion in the vertical direction.

Eine Sohle der eingangs genannten Art ist aus der DE 20 2005 017 043 U1 bekannt. Ähnliche und andere Lösungen zeigen die US 2008/127513 A1 , die DE 34 40 206 A1 , die US 2009/0064542 A1 und die US 2 983 056 A .A sole of the type mentioned is from the DE 20 2005 017 043 U1 known. Similar and other solutions show the US 2008/127513 A1 that DE 34 40 206 A1 , the US 2009/0064542 A1 and the U.S. 2,983,056 A .

Eine andere Sohle ist aus der US 2 983 056 A bekannt. Der Sohlenkörper ist hier in Querrichtung mit einer Vielzahl von Ausnehmungen versehen, die, seitlich auf die Sohle, also in Querrichtung gesehen, kreisrund ausgebildet sind. Dabei sind die Ausnehmungen mit unterschiedlichem Durchmesser ausgestaltet, wobei zwischen zwei Ausnehmungen mit größerem Durchmesser eine solche mit kleinerem Durchmesser angeordnet ist. Mit solchen Ausnehmungen lässt sich Einfluss auf das Feder- bzw. Dämpfungsverhalten der Sohle nehmen.Another sole is from the U.S. 2,983,056 A known. The sole body is provided here in the transverse direction with a multiplicity of recesses which are designed to be circular on the side of the sole, that is to say in the transverse direction. The recesses are designed with different diameters, one with a smaller diameter being arranged between two recesses with a larger diameter. With such recesses it is possible to influence the spring or damping behavior of the sole.

Der Erfindung liegt die Aufgabe zugrunde, eine Schuhsohle der eingangs genannten Art so fortzubilden, dass es möglich wird, das Federverhalten sowie das Dämpfungsverhalten der Sohle in gewünschter, vorgegebener Weise verbessert beeinflussen zu können.The invention is based on the object of developing a shoe sole of the type mentioned at the beginning in such a way that it becomes possible to be able to influence the spring behavior and the damping behavior of the sole in a desired, predetermined manner in an improved manner.

Die Erfindung löst die Aufgabe gemäß dem unabhängigen Anspruch 1.The invention achieves the object according to independent claim 1.

Die Lösung dieser Aufgabe durch die Erfindung ist dadurch gekennzeichnet, dass die beiden Reihen relativ zueinander so angeordnet sind, dass eine Ausnehmung der ersten Gruppe vertikal oberhalb einer Ausnehmung der zweiten Gruppe liegt, wobei ohne äußere Kräfte auf die Sohle die größte Abmessung einer Ausnehmung in eine erste Richtung mindestens 150 % der größten Abmessung der Ausnehmung in eine zweite Richtung, die senkrecht zur ersten Richtung ist, beträgt und wobei die Ausnehmungen, gesehen in Querrichtung, eine Umfangskontur aufweisen, die die Form einer Acht hat. Die Ausnehmungen durchsetzen bevorzugt zumindest teilweise die Sohle in Querrichtung vollständig.The solution to this problem by the invention is characterized in that the two rows are arranged relative to one another in such a way that a recess of the first group is vertically above a recess of the second group, with the largest dimension of a recess being converted into one without external forces on the sole first direction is at least 150% of the largest dimension of the recess in a second direction, which is perpendicular to the first direction, and wherein the recesses, viewed in the transverse direction, have a circumferential contour that has the shape of a figure eight. The recesses preferably at least partially penetrate the sole completely in the transverse direction.

Die Ausnehmungen erstrecken sich dabei bevorzugt entlang einer Geraden, sie sind also gerade bzw. linear ausgebildet.The recesses preferably extend along a straight line, so they are straight or linear.

Ohne äußere Kräfte auf die Sohle beträgt dabei bevorzugt die größte Abmessung einer Ausnehmung in eine erste Richtung mindestens 180 % der größten Abmessung der Ausnehmung in eine zweite Richtung, die senkrecht zur ersten Richtung ist. Die Ausnehmung weist in diesem Falle in einemWithout external forces on the sole, the largest dimension of a recess in a first direction is preferably at least 180% of the largest dimension of the recess in a second direction, which is perpendicular to the first direction. The recess has in this case in one

Mittenbereich bevorzugt eine Einschnürung mit einer minimalen Erstreckung auf, die höchstens 90 %, vorzugsweise höchstens 80 %, der größten Abmessung in die zweite Richtung beträgt.The central area preferably has a constriction with a minimal extent which is at most 90%, preferably at most 80%, of the largest dimension in the second direction.

Die größte Abmessung beträgt dabei bevorzugt zwischen 8 mm und 18 mm, besonders bevorzugt zwischen 10 mm und 15 mm.The largest dimension is preferably between 8 mm and 18 mm, particularly preferably between 10 mm and 15 mm.

Die zwischen den Ausnehmungen verbleibende Wandstärke des Materials der Sohle ist vorzugsweise zumindest abschnittsweise im wesentlichen konstant. Insoweit ist bevorzugt vorgesehen, dass die Wandstärke zumindest abschnittsweise in einem Bereich zwischen 80 % und 120 % eines mittleren Wertes der Wandstärke liegt (als mittlerer Wert der Wandstärke ist dabei das arithmetische Mittel zu verstehen, welches für die jeweiligen Wandstärken zwischen benachbarten Ausnehmungen über einen vorgegebenen definierten Bereich der seitlichen Fläche der Sohle ermittelt wird).The wall thickness of the material of the sole remaining between the recesses is preferably essentially constant, at least in sections. In this respect, it is preferably provided that the wall thickness is at least partially in a range between 80% and 120% of an average value of the wall thickness defined area of the lateral surface of the sole is determined).

Die Sohle besteht bevorzugt aus Polyurethan-Material, aus Thermoplastischem Polyurethan (TPU) oder aus Thermoplastischem Elastomer (TPE) oder weist zumindest dieses Material auf. Das Material der Sohle ist dabei bevorzugt geschäumt.The sole is preferably made of polyurethane material, thermoplastic polyurethane (TPU) or thermoplastic elastomer (TPE) or at least comprises this material. The material of the sole is preferably foamed.

Das Material der Sohle hat bevorzugt eine Dichte zwischen 0,20 und 0,50 g/cm3. Es hat bevorzugt eine Härte zwischen 30 und 50 Asker C.The material of the sole preferably has a density between 0.20 and 0.50 g / cm 3 . It preferably has a hardness between 30 and 50 Asker C.

Die Sohle kann als Zwischensohle ausgebildet sein. Dabei ist es möglich, dass unter der Zwischensohle eine Außensohle angeordnet ist.The sole can be designed as a midsole. It is possible that an outsole is arranged under the midsole.

Die Ausnehmungen sind bevorzugt in Längsrichtung über mindestens 33 % der gesamten Längserstreckung der Sohle angeordnet. Sie sind bevorzugt zumindest in einem Mittenfußbereich und einem Hinterfußbereich der Sohle angeordnet.The recesses are preferably arranged in the longitudinal direction over at least 33% of the entire longitudinal extent of the sole. They are preferably arranged at least in a midfoot area and a rear foot area of the sole.

Durch die vorgeschlagene Ausgestaltung der Sohle ist es möglich, die Steuerung der Feder- und Dämpfungseigenschaften bzw. der Härte der Sohle in einfacher Weise zu beeinflussen. Durch die Ausgestaltung der Ausnehmungen kann bei der Beauftragung der Sohle mit der Gewichtskraft des Trägers des Schuhs, der mit der Sohle versehen ist, ein gewünschtes Einfedern realisiert werden.The proposed design of the sole makes it possible to influence the control of the spring and damping properties or the hardness of the sole in a simple manner. Due to the design of the recesses, when the sole is subjected to the weight of the wearer of the shoe who is provided with the sole, a desired deflection can be realized.

Die vorliegende Erfindung stellt insofern auf die Benutzung von so genanntem "Mechanical Meta Material" ab, bei dem vorgesehen ist, dass verschiedene Anreihungen von Durchbrüchen (bekannt sind hierbei vor allem im Querschnitt runde oder ovale Ausnehmungen) unterschiedlicher Größe in die Sohle eingebracht werden bzw. sind, um ein bestimmtes Feder- bzw. Dämpfungsverhalten der Sohle zu erreichen. Somit kann ein "Engineered Damping" erfolgen, bei dem also die Feder- bzw. Dämpfungseigenschaften einer gewünschten Kennlinie gehorchen.The present invention is based on the use of so-called "mechanical meta material", in which it is provided that various rows of openings (known here are above all round or oval recesses in cross section) of different sizes are or are made in the sole. are to achieve a certain spring or damping behavior of the sole. "Engineered Damping" can thus take place, in which the spring or damping properties obey a desired characteristic.

Bei Aufbringung einer Verformungskraft - hervorgerufen durch die Gewichtskraft des Trägers des Schuhs - kollabieren die entstehenden Zellen in spezieller Weise, so dass spezielle Feder- bzw. Dämpf-Kennlinien realisiert werden können.When a deformation force is applied - caused by the weight of the wearer of the shoe - the resulting cells collapse in a special way, so that special spring or damping characteristics can be implemented.

Insoweit wird sozusagen ein "programmierbares Zusammenklappen bzw. Kollabieren" der Sohlen-Struktur erreicht, da die Struktur in sich ein zusammenhängendes System bildet und die einzelnen Materialabschnitte voneinander abhängig sind.In this respect, a “programmable folding or collapsing” of the sole structure is achieved, so to speak, since the structure itself forms a coherent system and the individual material sections are dependent on one another.

Die Vorteile der vorgeschlagenen Struktur können zu einer "negativen Steifigkeit" führen, d. h. drückt man die Sohle in vertikaler Richtung etwas zusammen, fällt die Sohle in definierter Weise in sich zusammen. Auch ist es auf die beschriebene Weise möglich, die Sohle so zu strukturieren, dass sie einerseits ein hinreichendes Maß an Elastizität aufweist und andererseits infolge einer Deformationskraft Verformungsenergie aufnimmt.The advantages of the proposed structure can result in "negative stiffness" i.e. H. If you compress the sole a little in the vertical direction, the sole collapses in a defined way. It is also possible in the manner described to structure the sole in such a way that, on the one hand, it has a sufficient degree of elasticity and, on the other hand, it absorbs deformation energy as a result of a deformation force.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen:

Fig. 1
eine Sohle eines Sportschuhs, wobei diese eine Zwischensohle sowie eine Außensohle umfasst,
Fig. 2
den Ausschnitt "X" gemäß Figur 1 in detaillierterer Darstellung, gesehen in eine Querrichtung senkrecht zur Längsrichtung der Sohle und senkrecht zur vertikalen Richtung, und
Fig. 3
eine Ausnehmung in der Sohle mit Detailangaben zu deren Geometrie.
An exemplary embodiment of the invention is shown in the drawing. Show it:
Fig. 1
a sole of a sports shoe, which comprises a midsole and an outsole,
Fig. 2
the section "X" according to Figure 1 in more detail, viewed in a transverse direction perpendicular to the longitudinal direction of the sole and perpendicular to the vertical direction, and
Fig. 3
a recess in the sole with details of its geometry.

In Figur 1 ist eine Sohle 1 zu sehen, die sich in Längsrichtung L (entsprechend der Längsachse des Schuhs, der mit der Sohle versehen ist) sowie in Vertikalrichtung V erstreckt (die Vertikalrichtung V gibt die Richtung an, wenn der Schuh bzw. die Sohle bei bestimmungsgemäßer Verwendung auf dem Boden steht). Weiterhin erstreckt sich die Sohle 1 in eine Querrichtung Q, die sowohl auf der Längsrichtung L als auch auf der Vertikalrichtung V senkrecht steht.In Figure 1 A sole 1 can be seen that extends in the longitudinal direction L (corresponding to the longitudinal axis of the shoe that is provided with the sole) and in the vertical direction V (the vertical direction V indicates the direction when the shoe or the sole is used as intended stands on the floor). Furthermore, the sole 1 extends in a transverse direction Q which is perpendicular both to the longitudinal direction L and to the vertical direction V.

Die Sohle 1 ist vorliegend als Zwischensohle ausgebildet, an deren Oberseite das (nicht dargestellte) Schuhoberteil in bekannter Weise befestigt ist. An der Unterseite der Sohle ist eine Außensohle 6 befestigt.In the present case, the sole 1 is designed as a midsole, on the upper side of which the upper (not shown) is attached in a known manner. An outer sole 6 is attached to the underside of the sole.

In die Sohle 1 sind Ausnehmungen 2 eingearbeitet. Bevorzugt erstrecken sich diese Ausnehmungen in Querrichtung Q über die gesamte Breite der Sohle 1. Details zur Ausgestaltung und Anordnung der Ausnehmungen 2 sind aus den Figuren 2 und 3 ersichtlich. Hierzu zeigt Figur 2 die Einzelheit "X" gemäß Figur 1 und Figur 3 die geometrische Gestaltung einer bevorzugten Ausführungsform einer einzelnen Ausnehmung 2.Recesses 2 are incorporated into the sole 1. These recesses preferably extend in the transverse direction Q over the entire width of the sole 1. Details on the design and arrangement of the recesses 2 can be found in FIG Figures 2 and 3 evident. This shows Figure 2 the detail "X" according to Figure 1 and Figure 3 the geometric design of a preferred embodiment of a single recess 2.

Wie in Figur 2 in der Zusammenschau mit Figur 1 gesehen werden kann, sind zwei Reihen 3 und 4 an Ausnehmungen 2 in die Sohle 1 eingebracht. Dabei kommen zwei Gruppen an Ausnehmungen 2 zum Einsatz:
Eine erste Gruppe Ausnehmungen 2' ist so gestaltet, dass - ohne äußere Kräfte auf die Sohle 1 - die Ausnehmungen 2' in Vertikalrichtung V größer ausgebildet sind als in Längsrichtung L. Dann ist eine zweite Gruppe an Ausnehmungen 2" vorhanden, die - wiederum ohne äußere Kräfte auf die Sohle 1 - in Vertikalrichtung V kleiner ausgebildet sind als in Längsrichtung L. Wie sich aus Figur 2 ergibt, sind dabei in jeder Reihe 3, 4 in Längsrichtung L nebeneinander die Ausnehmungen 2', 2" so angeordnet, dass zwischen zwei Ausnehmungen 2' der ersten Gruppe eine Ausnehmung 2" der zweiten Gruppe angeordnet ist.As in Figure 2 in the synopsis with Figure 1 can be seen, two rows 3 and 4 of recesses 2 are made in the sole 1. Two groups of recesses 2 are used:
A first group of recesses 2 'is designed in such a way that - without external forces on the sole 1 - the recesses 2' are made larger in the vertical direction V than in the longitudinal direction L. A second group is then present Recesses 2 ″ are present, which - again without external forces on the sole 1 - are made smaller in the vertical direction V than in the longitudinal direction L. As can be seen from Figure 2 results, the recesses 2 ', 2 "are arranged next to one another in each row 3, 4 in the longitudinal direction L so that a recess 2" of the second group is arranged between two recesses 2' of the first group.

Die einzelnen Ausnehmungen 2', 2" sind jeweils so gestaltet, dass sie in Querrichtung Q gesehen die Form einer "Acht" aufweisen. Hierzu wird insbesondere auf Figur 3 Bezug genommen.The individual recesses 2 ′, 2 ″ are each designed in such a way that, viewed in the transverse direction Q, they have the shape of an "eight" Figure 3 Referenced.

Jeder Ausnehmung 2', 2" hat demgemäß in eine erste Richtung R1 eine größte Abmessung G (die bevorzugt zwischen 10 mm und 15 mm beträgt); in eine zweite Richtung R2, die auf der ersten Richtung R1 senkrecht steht, ist die größte Abmessung der Ausnehmung 2', 2" mit K bezeichnet. Die Abmessung G beträgt dabei mindestens 150 % (besonders bevorzugt sogar mindestens 180 %) der Abmessung K.Each recess 2 ', 2 "accordingly has a largest dimension G in a first direction R1 (which is preferably between 10 mm and 15 mm); in a second direction R2, which is perpendicular to the first direction R1, the largest dimension is Recess 2 ', 2 "designated by K. The dimension G is at least 150% (particularly preferably even at least 180%) of the dimension K.

Im Mittenbereich entlang der Erstreckung in die erste Richtung R1 weist die Ausnehmung 2', 2" eine Einschnürung 5 auf (wodurch sich die Gestaltung in Form einer "Acht" ergibt), so dass die Ausnehmung 2', 2" hier eine minimale Erstreckung k hat. Diese minimale Erstreckung k beträgt bevorzugt höchstens 90 %, besonders bevorzugt höchstens 80 %, der Abmessung K.In the middle area along the extension in the first direction R1, the recess 2 ', 2 "has a constriction 5 (which results in the design in the form of a" figure eight "), so that the recess 2', 2" here has a minimal extension k Has. This minimum extension k is preferably at most 90%, particularly preferably at most 80%, of the dimension K.

Hinzuweisen ist noch auf die verbleibende Wandstärke t, die sich zwischen benachbarten Ausnehmungen 2', 2" ergibt. Diese ist in Figur 2 an verschiedenen Stellen eingetragen. Ermittelt man einen (arithmetischen) Mittelwert zwischen den jeweiligen Wandstärken t über einen ausgewählten Bereich (wie zum Beispiel denjenigen Bereich, der in Figur 2 dargestellt ist), ist bevorzugt vorgesehen, dass die Wandstärke t im wesentlichen weitgehend konstant bleibt. Konkret kann dies dahingehend quantifiziert werden, dass die Wandstärke t an jeder Stelle des ausgewählten Bereichs nicht weniger als 80 % und nicht mehr als 120 % der mittleren Wandstärke t beträgt.Reference should also be made to the remaining wall thickness t that results between adjacent recesses 2 ', 2 ". This is shown in FIG Figure 2 registered in various places. If you determine an (arithmetic) mean value between the respective wall thicknesses t over a selected area (such as the area shown in Figure 2 is shown), it is preferably provided that the wall thickness t remains essentially constant. Specifically, this can be quantified in such a way that the wall thickness t at each point of the selected area is not less than 80% and not more than 120% of the mean wall thickness t.

Durch die vorgeschlagene Ausgestaltung kann erreicht werden, dass die Sohle des Schuhs ein spezielles Feder- bzw. Dämpfverhalten aufweist, wobei insbesondere bei der Beaufschlagung durch die Gewichtskraft des Trägers des Schuhs ein vorbestimmtes Kollabieren der Sohle infolge der Ausnehmungen erfolgt, was ein angenehmes Tragegefühl vermittelt.The proposed configuration can ensure that the sole of the shoe has a special spring or damping behavior, with a predetermined collapse of the sole as a result of the recesses, particularly when the weight of the wearer of the shoe is applied, which provides a comfortable wearing experience.

Bezugszeichenliste:List of reference symbols:

11
Sohlesole
22
AusnehmungRecess
2'2 '
Ausnehmung der ersten GruppeRecess of the first group
2"2 "
Ausnehmung der zweiten GruppeRecess of the second group
33rd
Reihe an AusnehmungenRow of recesses
44th
Reihe an AusnehmungenRow of recesses
55
EinschnürungConstriction
66th
AußensohleOutsole
LL.
LängsrichtungLongitudinal direction
VV
VertikalrichtungVertical direction
QQ
QuerrichtungTransverse direction
R1R1
erste Richtungfirst direction
R2R2
zweite Richtungsecond direction
GG
größte Abmessung der Ausnehmung in erste Richtunglargest dimension of the recess in the first direction
KK
größte Abmessung der Ausnehmung in zweite Richtunglargest dimension of the recess in the second direction
kk
minimale Erstreckungminimal extension
tt
WandstärkeWall thickness

Claims (15)

  1. Sole (1) of a shoe, particularly of an athletic shoe, wherein the sole (1) has an extension in a longitudinal direction (L) and an extension in a vertical direction (V) perpendicular thereto, wherein a number of recesses (2) is introduced into the sole (1), wherein the recesses (2) extend in a transverse direction (Q) perpendicular to the longitudinal direction (L) and perpendicular to the vertical direction (V) and permeate the sole (1) at least in part,
    wherein there is a first group of recesses (2') which, without external forces on the sole (1), are larger in the vertical direction (V) than in the longitudinal direction (L),
    wherein there is a second group of recesses (2") which, without external forces on the sole (1), are smaller in the vertical direction (V) than in the longitudinal direction (L),
    wherein at least in sections, at least one row (3, 4) of recesses (2', 2") is arranged adjacent to each other in the longitudinal direction (L), wherein a recess (2") of the second group is arranged between two recesses (2') of the first group,
    wherein an upper row (3) of recesses (2', 2") and a lower row (4) of recesses (2', 2") are arranged above one another at least in sections in the vertical direction (V),
    characterized in
    that the two rows (3, 4) are arranged relative to each other in such a way that a recess (2') of the first group lies vertically above a recess (2") of the second group, wherein, without external forces on the sole (1), the largest dimension (G) of a recess (2) in a first direction (R1) is at least 150 % of the largest dimension (K) of the recess (2) in a second direction (R2) perpendicular to the first direction and wherein the recesses (2), seen in the transverse direction (Q), have a peripheral contour which has the shape of an eight.
  2. Sole according to claim 1, characterized in that the recesses (2) at least partially penetrate the sole (1) completely in the transverse direction (Q).
  3. Sole according to claims 1 or 2, characterized in that the recesses (2) extend along a straight line.
  4. Sole according to one of claims 1 to 3, characterized in that, without external forces on the sole (1), the largest dimension (G) of a recess (2) in a first direction (R1) is at least 180 % of the largest dimension (K) of the recess (2) in a second direction (R2) perpendicular to the first direction.
  5. Sole according to one of claims 1 to 4, characterised in that the recess (2) has in a central region a restriction (5) with a minimum extension (k) which is at most 90%, preferably at most 80%, of the largest dimension (K) in the second direction (R2).
  6. Sole according to one of claims 1 to 5, characterised in that the largest dimension (G) is between 8 mm and 18 mm, preferably between 10 mm and 15 mm.
  7. Sole according to one of claims 1 to 6, characterised in that the wall thickness (t) of the material of the sole (1) remaining between the recesses (2) is constant at least in sections.
  8. Sole according to claim 7, characterized in that the wall thickness (t) at least in sections is in a range between 80 % and 120 % of an average value of the wall thickness (t).
  9. Sole according to one of claims 1 to 8, characterized in that it consists of or comprises polyurethane material, thermoplastic polyurethane (TPU) or thermoplastic elastomer (TPE).
  10. Sole according to claim 9, characterized in that the material of the sole (1) is foamed.
  11. Sole according to one of claims 1 to 10, characterized in that the material of the sole has a density between 0.20 and 0.50 g/cm3.
  12. Sole according to one of claims 1 to 11, characterized in that the material of the sole has a hardness between 30 and 50 Asker C.
  13. Sole according to one of claims 1 to 12, characterised in that it is or comprises a midsole, wherein especially an outer sole (6) is arranged below the midsole.
  14. Sole according to one of claims 1 to 13, characterised in that the recesses (2) are arranged in the longitudinal direction (L) over at least 33 % of the total longitudinal extension of the sole (1).
  15. Shoe according to one of claims 1 to 14, characterized in that the recesses (2) are arranged at least in a midfoot region and a rearfoot region of the sole (1).
EP18724204.5A 2018-05-08 2018-05-08 Sole of a shoe, particularly an athletic shoe Active EP3790423B1 (en)

Priority Applications (1)

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PL18724204T PL3790423T3 (en) 2018-05-08 2018-05-08 Sole of a shoe, particularly an athletic shoe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/061934 WO2019214814A1 (en) 2018-05-08 2018-05-08 Sole of a shoe, particularly an athletic shoe

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EP3790423A1 EP3790423A1 (en) 2021-03-17
EP3790423B1 true EP3790423B1 (en) 2021-09-15

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EP (1) EP3790423B1 (en)
JP (1) JP6975351B2 (en)
CN (1) CN112423616B (en)
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