EP3297483B1 - Sole structure for a flexible shoe - Google Patents

Sole structure for a flexible shoe Download PDF

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Publication number
EP3297483B1
EP3297483B1 EP16726038.9A EP16726038A EP3297483B1 EP 3297483 B1 EP3297483 B1 EP 3297483B1 EP 16726038 A EP16726038 A EP 16726038A EP 3297483 B1 EP3297483 B1 EP 3297483B1
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EP
European Patent Office
Prior art keywords
channel
elements
sole
lateral openings
shaped elements
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EP16726038.9A
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German (de)
French (fr)
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EP3297483A1 (en
Inventor
Olivier BERNHARD
Ilmarin Heitz
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On Clouds GmbH
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On Clouds GmbH
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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
    • A43B13/141—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
    • A43B13/143—Soles; Sole-and-heel integral units characterised by the constructive form provided with wedged, concave or convex end portions, e.g. for improving roll-off of the foot
    • 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
    • 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
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/20—Pneumatic soles filled with a compressible fluid, e.g. air, gas
    • A43B13/206—Pneumatic soles filled with a compressible fluid, e.g. air, gas provided with tubes or pipes or tubular shaped cushioning members

Definitions

  • the present invention relates to a sole construction for a flexible shoe with a soft, elastic midsole that at least partially comes into contact with the ground when walking, which has channel-shaped elements with a flat bottom that are oriented transversely to its longitudinal direction, protrude downwards toward the ground, and are open at the sides. Furthermore, the midsole has an edge strip that bridges the channel-shaped elements, which narrows the cross-section of the channels in the channel-shaped elements and determines the height of the lateral openings of the channel-shaped elements.
  • the outward-facing end faces of the channel-shaped elements are provided with horizontal predetermined folding notches. Under the action of vertical and/or longitudinal forces occurring when walking, the channel-shaped elements are deformable vertically and/or longitudinally until the closure of their lateral openings in the area of the edge strip.
  • the object of the invention is to further functionally improve a sole construction of the type mentioned at the outset.
  • the sole construction according to the invention is characterized in that the predetermined folding notches have a vertical width corresponding to the height of the lateral openings of the channel-shaped elements and are aligned with the lateral openings of the channel-shaped elements.
  • the effect of the predetermined folding notches according to the invention is considerably more pronounced, locally concentrated and the deformation is therefore more pronounced than with the large number of grooves over a larger area which is possible on known sole construction.
  • the grooves of the known sole construction also facilitate the deformation of the channel-shaped elements, they tend to support a deformation that is uniformly distributed over their height, similar to the bellows of an accordion. Under oblique loading, mainly only one flank of the channel-shaped elements is compressed, resulting in a deformation of their flat bottoms with bulging. In the embodiment according to the invention, the trough-shaped elements tend to shear even if the load is only slightly inclined, while largely retaining their flat bottom shape without bulging.
  • the predetermined folding notches can have a depth which corresponds to 2.0 - 8.0 mm, preferably one third of their vertical width.
  • the midsole can be efficiently manufactured in one piece by injection molding.
  • the shoe shown denotes 10 the upper part enclosing the foot and 20 a soft elastic middle sole of a sole construction according to the invention. While largely dispensing with an outsole, the midsole 20 is partially in direct contact with the ground. In 1 only the midsole 20 is visible from the sole construction.
  • the midsole 20 has a plurality of channel-shaped elements which extend transversely to the longitudinal direction, are approximately the same width and are arranged approximately evenly distributed. Only one of these items is in 1 labeled 21.
  • a rim 23 results in a reinforcement of the channel-shaped elements 21 on the outside.
  • the rim 23 frames an in 1 invisible, incompressible but elastically flexible plate which is embedded approximately at the height of the upper edge of the skirt 23 flush with this upper edge between the upper 10 and the midsole 20 and is connected to these parts.
  • the plate is only about 2 mm thick, so that the clear height of the grooves in the groove-shaped elements 21 within the frame created by the edge strip 23 is about twice as large as the height of the lateral openings 24 below the edge strip 23.
  • the edge strip 23 bridges the channel-shaped elements 21 on the outside, narrowing their cross section.
  • the midsole 20 is stiffened by the plate framed by the edge strip 23, the plate essentially determining the integral, elastic flexibility of the sole construction.
  • the rather local, elastic flexibility is determined by the channel-shaped elements 21 of the midsole 20.
  • the channel-shaped elements 21 are each provided with a horizontal predetermined folding notch 25 on their front and rear flanks.
  • the desired folding notches 25 have a vertical width approximately corresponding to the height of the lateral openings 24 and are aligned both with one another and with the lateral openings 24 at the same height.
  • the predetermined folding notches 25 have a depth which corresponds to 2.0-8.0 mm, but preferably one third of their vertical width. In 1 For example, the creases of weakness are shown rounded, but they could be v-shaped.
  • the thickness of the channel-shaped elements tends to decrease from the heel area to the ball area.
  • the wall thickness of the channel-shaped elements 21 also decreases from the heel area to the ball area.
  • the channel-shaped elements 21 are also somewhat thicker at the front than at the back, in the metatarsal area at the front and at the back about the same thickness and in the ball of the foot area at the front somewhat thinner than at the back.
  • the bottoms 27 of the channel-shaped elements 21 are each flat, both on their upper side in the channels and on their underside. Together with the edge strip 23 and the slightly inclined flanks of the channels, this results in approximately trapezoidal cross sections for the lateral openings 24.
  • the mutual spacing of the channel-shaped elements 21 is chosen so large in the longitudinal direction of the shoe that they individually by shearing in this direction up to Closure of their side openings 24 are deformable by flat filing. This type of deformation is significantly promoted or supported by the predetermined folding notches 25 .
  • a longitudinal slot 22 in the midsole 20 extends from the heel area to the ball area almost over the entire length of the shoe, whereby the midsole 20 is divided into a medial and a lateral part. The two parts are only connected to each other at the back of the shoe and at the front of the shoe toe.
  • the longitudinal slot 22 results in pairs of channel-shaped elements 21 which are arranged next to one another on the lateral and medial sides and can be deformed independently of one another.
  • the longitudinal slot 22 is bent in itself and arranged in such a way that the channel-shaped elements 21 are shorter medially than laterally in the heel area and metatarsal area and longer medially than laterally in the ball of the foot area.
  • the rolling characteristics of the sole construction can be influenced and adjusted by the shape and position of the longitudinal slit.
  • the downwardly open indentations between the channel-shaped elements 21 and the longitudinal slot 22 preferably widen somewhat downwards, which counteracts the jamming of stones, for example, and supports the self-cleaning of the sole construction.
  • the channel-shaped elements 21 subjected to the greatest loads in the heel and ball area are provided with thin layers of hard-elastic material such as rubber, with 2 only one of these supports shown with an oblique ribbing is denoted by 30. At the remaining channel-shaped elements 21, the material of the midsole 20 is directly exposed to ground contact.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Road Paving Structures (AREA)
  • Floor Finish (AREA)

Description

GEBIET DER ERFINDUNGFIELD OF THE INVENTION

Die vorliegende Erfindung betrifft eine Sohlenkonstruktion für einen flexiblen Schuh mit einer zumindest teilweise beim Laufen mit dem Boden in Kontakt kommenden, weichelastischen Mittelsohle, welche quer zu ihrer Längsrichtung ausgerichtete, nach unten gegen den Boden vorstehende, seitlich offene, rinnenförmige Elemente mit flachem Boden aufweist. Weiter weist die Mittelsohle eine die rinnenförmigen Elemente jeweils überbrückende Randleiste auf, welche den Querschnitt der Rinnen in den rinnenförmigen Elementen verengt, und die Höhe der seitlichen Öffnungen der rinnenförmigen Elemente bestimmt. Die nach aussen gerichteten Stirnseiten der rinnenförmigen Elemente sind mit horizontalen Sollfaltkerben versehen. Unter der Wirkung von vertikal und/oder in Längsrichtung wirkenden, beim Laufen auftretenden Kräften sind die rinnenförmigen Elemente bis zum Verschluss ihrer seitlichen Öffnungen im Bereich der Randleiste vertikal und/oder in Längsrichtung verformbar.The present invention relates to a sole construction for a flexible shoe with a soft, elastic midsole that at least partially comes into contact with the ground when walking, which has channel-shaped elements with a flat bottom that are oriented transversely to its longitudinal direction, protrude downwards toward the ground, and are open at the sides. Furthermore, the midsole has an edge strip that bridges the channel-shaped elements, which narrows the cross-section of the channels in the channel-shaped elements and determines the height of the lateral openings of the channel-shaped elements. The outward-facing end faces of the channel-shaped elements are provided with horizontal predetermined folding notches. Under the action of vertical and/or longitudinal forces occurring when walking, the channel-shaped elements are deformable vertically and/or longitudinally until the closure of their lateral openings in the area of the edge strip.

STAND DER TECHNIKSTATE OF THE ART

Eine solche Sohlenkonstruktion ist aus DE20201400301 6 U1 bekannt. Beim Verschluss der seitlichen Öffnungen der rinnenförmigen Elemente unter den beim Auftreten wirkenden Kräften kommt es der bekannten Sohlenkonstruktion zu einer Berührung der Rinnenböden mit der Randleisten-Unterseite. Dadurch wird die Verformung der rinnenförmigen Elemente im wesentlichen gestoppt und eine feste Standfläche für das Abstossen beim nachfolgenden Schritt erzeugt. Durch Reibung wird zudem die horizontale Verschiebbarkeit, d.h. die Verschiebbarkeit in Längsrichtung der sich berührenden Flächen gegeneinander behindert, was dem erwähnten Schwimmeffekt entgegenwirkt.Such a sole construction is over DE20201400301 6 U1 famous. When the lateral openings of the channel-shaped elements are closed under the forces acting when they occur, the known sole construction causes the channel bottoms to come into contact with the underside of the skirting board. As a result, the deformation of the channel-shaped elements is essentially stopped and a solid base is created for pushing off in the subsequent step. In addition, the horizontal displaceability, ie the displaceability in the longitudinal direction of the contacting surfaces against one another, is hindered by friction, which counteracts the swimming effect mentioned.

Günstig für diese gewünschten Effekte ist es, wenn sich die rinnenförmigen Elemente durch Scheren flach ablegen und dabei die flachen Rinnenböden flächig an der Randleisten-Unterseite zur Anlage kommen. Dieses Deformationsverhalten soll unterstützt werden durch die Sollfallkerben, welche sich bei der bekannten Sohlenkonstruktion durch mehrere übereinander angeordete, horizontale Rillen ergeben, die sowohl auf Höhe der seitlichen Öffnungen der rinnenförmigen Elemente als auch im Bereich der Randleiste gleichmässig verteilt angeordnet sind.It is favorable for these desired effects if the channel-shaped elements are laid down flat by shearing and the flat channel bottoms come to rest flat on the underside of the skirting board. This deformation behavior should be supported by the predetermined notches, which result in the known sole construction by several horizontal grooves arranged one above the other, which are arranged evenly distributed both at the level of the lateral openings of the channel-shaped elements and in the area of the edge strip.

ALLGEMEINE BESCHREIBUNG DER ERFINDUNGGENERAL DESCRIPTION OF THE INVENTION

Die Erfindung stellt sich die Aufgabe, eine Sohlenkonstruktion der eingangs genannten Art funktionell weiter zu verbessern.The object of the invention is to further functionally improve a sole construction of the type mentioned at the outset.

Diese Aufgabe wird erfindungsgemäss gelöst durch eine Sohlenkonstruktion gemäss Anspruch 1. Die erfindungsgemässe Sohlenkonstruktion ist demnach dadurch gekennzeichnet, dass die Sollfaltkerben eine der Höhe der seitlichen Öffnungen der rinnenförmigen Elemente entsprechende vertikale Breite aufweisen und mit den seitlichen Öffnungen der rinnenförmigen Elemente jeweils fluchten.This object is achieved according to the invention by a sole construction according to claim 1. The sole construction according to the invention is characterized in that the predetermined folding notches have a vertical width corresponding to the height of the lateral openings of the channel-shaped elements and are aligned with the lateral openings of the channel-shaped elements.

Auf Grund ihrer Ausbildung mit grosser Breite und ihrer Anordnung in Flucht mit den seitlichen Öffnungen der rinnenförmigen Elemente ist die Wirkung der Sollfaltkerben nach der Erfindung erheblich ausgeprägter, lokal konzentriert sowie die Deformation dadurch stärker führend als dies mit der Vielzahl von über einen grösseren Bereich Rillen bei der an bekannten Sohlenkonstruktion möglich ist.Due to their design with a large width and their arrangement in alignment with the lateral openings of the channel-shaped elements, the effect of the predetermined folding notches according to the invention is considerably more pronounced, locally concentrated and the deformation is therefore more pronounced than with the large number of grooves over a larger area which is possible on known sole construction.

Die Rillen der bekannten Sohlenkonstruktion erleichtern zwar ebenfalls die Deformation der rinnenförmigen Elemente, doch unterstützen sie eher eine über deren Höhe gleichmässig verteilte Deformation ähnlich wie beim Faltenbalg einer Ziehharmonika. Unter schiefer Belastung wird vornehmlich nur eine Flanke der rinnenförmigen Elemente komprimiert wodurch es zu einer Verformung ihrer flachen Böden mit Wulstbildung kommt. Bei der erfindungsgemässen Ausbildung neigen die rinnenförmigen Elemente bereits bei nur leicht schiefer Belastung zum Scheren unter weitgehender Beibehaltung ihrer flachen Bodenform ohne Wulstbildung.Although the grooves of the known sole construction also facilitate the deformation of the channel-shaped elements, they tend to support a deformation that is uniformly distributed over their height, similar to the bellows of an accordion. Under oblique loading, mainly only one flank of the channel-shaped elements is compressed, resulting in a deformation of their flat bottoms with bulging. In the embodiment according to the invention, the trough-shaped elements tend to shear even if the load is only slightly inclined, while largely retaining their flat bottom shape without bulging.

Die Sollfaltkerben können eine Tiefe aufweisen, die 2,0 - 8,0 mm, vorzugsweise ein Drittel ihrer vertikalen Breite entspricht.The predetermined folding notches can have a depth which corresponds to 2.0 - 8.0 mm, preferably one third of their vertical width.

Weitere bevorzugte Ausbildungen der erfindungsgemässen Sohlenkonstruktion sind in den abhängigen Ansprüchen 2 - 4 angegeben, wobei diese Ausbildungen allerdings auch schon bei der bekannten Sohlenkonstruktion bevorzugt vorhanden sind.Further preferred configurations of the sole construction according to the invention are specified in the dependent claims 2-4, although these configurations are also preferably present in the known sole construction.

Die Mittelsohle kann rationell einstückig durch Spritzgiessen hergestellt werden.The midsole can be efficiently manufactured in one piece by injection molding.

KURZE BESCHREIBUNG DER ZEICHNUNGENBRIEF DESCRIPTION OF THE DRAWINGS

Nachstehend wird ein Ausführungsbeispiel der Erfindung mit Bezug auf die Zeichnungen beschrieben. Es zeigen:

  • Fig. 1 einen rechten Schuh mit einer erfindungsgemässen Sohlenkonstruktion von seiner lateralen Seite perspektivisch schräg von hinten; und
  • Fig. 2 den Schuh von Fig. 1 von unten.
An embodiment of the invention will be described below with reference to the drawings. Show it:
  • 1 a right shoe with a sole construction according to the invention from its lateral side obliquely from behind; and
  • 2 the shoe of 1 from underneath.

WEG ZUR AUSFÜHRUNG DER ERFINDUNGWAY TO CARRY OUT THE INVENTION

Bei dem in Fig. 1 dargestellten Schuh bezeichnet 10 das den Fuss umschliessende Oberteil und 20 eine weichelastische Mittelsohle einer erfindungsgemässen Sohlenkonstruktion. Unter weitgehendem Verzicht auf eine Aussensohle ist die Mittelsohle 20 zum Teil direkt mit dem Boden in Kontakt. In Fig. 1 ist von der Sohlenkonstruktion nur die Mittelsohle 20 sichtbar.At the in 1 The shoe shown denotes 10 the upper part enclosing the foot and 20 a soft elastic middle sole of a sole construction according to the invention. While largely dispensing with an outsole, the midsole 20 is partially in direct contact with the ground. In 1 only the midsole 20 is visible from the sole construction.

Die Mittelsohle 20 weist in Längsrichtung des Schuhs mehrere, sich quer zur Längsrichtung erstreckende, etwa gleich breite sowie etwa gleichmässig verteilt angeordnete rinnenförmige Elemente auf. Lediglich eines dieser Elemente ist in Fig. 1 mit 21 bezeichnet. Durch eine Randleiste 23 ergibt sich aussenseitig eine Verstärkung der rinnenförmigen Elemente 21. Die Randleiste 23 umrahmt eine in Fig. 1 nicht sichtbare, inkompressible aber elastisch biegsame Platte, die etwa auf Höhe des oberen Randes der Randleiste 23 bündig mit diesem oberen Rand zwischen dem Oberteil 10 und der Mittelsohle 20 eingebettet und mit diesen Teilen verbunden ist. Die Platte weist nur eine Dicke von ca. 2 mm auf, so dass die lichte Höhe der Rinnen in den rinnenförmigen Elementen 21 innerhalb der durch die Randleiste 23 bewirkten Umrahmung etwa doppelt so gross ist wie die Höhe der seitlichen Öffnungen 24 unterhalb er Randleiste 23. Anders ausgedrückt überbrückt die Randleiste 23) die rinnenförmigen Elemente 21 aussenseitig unter Verengung von deren Querschnitt.In the longitudinal direction of the shoe, the midsole 20 has a plurality of channel-shaped elements which extend transversely to the longitudinal direction, are approximately the same width and are arranged approximately evenly distributed. Only one of these items is in 1 labeled 21. A rim 23 results in a reinforcement of the channel-shaped elements 21 on the outside. The rim 23 frames an in 1 invisible, incompressible but elastically flexible plate which is embedded approximately at the height of the upper edge of the skirt 23 flush with this upper edge between the upper 10 and the midsole 20 and is connected to these parts. The plate is only about 2 mm thick, so that the clear height of the grooves in the groove-shaped elements 21 within the frame created by the edge strip 23 is about twice as large as the height of the lateral openings 24 below the edge strip 23. In other words, the edge strip 23) bridges the channel-shaped elements 21 on the outside, narrowing their cross section.

Durch die von der Randleiste 23 umrahmte Platte wird die Mittelsohle 20 ausgesteift, wobei die Platte im wesentlichen die integrale, elastische Flexibilität der Sohlenkonstruktion bestimmt. Die eher lokale, elastische Flexibilität wird durch die rinnenförmigen Elemente 21 der Mittelsohle 20 bestimmt.The midsole 20 is stiffened by the plate framed by the edge strip 23, the plate essentially determining the integral, elastic flexibility of the sole construction. The rather local, elastic flexibility is determined by the channel-shaped elements 21 of the midsole 20.

An ihren nach aussen gerichteten Stirnseiten sind die rinnenförmigen Elemente 21 an ihrer vorderen und hinteren Flanke jeweils mit einer horizontalen Sollfaltkerbe 25 versehen. Die Sollfaltkerben 25 weisen eine der Höhe der seitlichen Öffnungen 24 etwa entsprechende vertikale Breite auf und fluchten sowohl miteinander als auch mit den seitlichen Öffnungen 24 jeweils auf gleicher Höhe.On their outwardly directed end faces, the channel-shaped elements 21 are each provided with a horizontal predetermined folding notch 25 on their front and rear flanks. The desired folding notches 25 have a vertical width approximately corresponding to the height of the lateral openings 24 and are aligned both with one another and with the lateral openings 24 at the same height.

An den hintersten Elementen 21 ist eine den Sollfaltkerben25 entsprechende Einbuchtung 26 vorhanden, die sich zum Teil noch um den Fersenteil herum erstreckt.On the rearmost elements 21 there is an indentation 26 corresponding to the predetermined folding notches 25, which in part still extends around the heel part.

Die Sollfaltkerben 25 weisen eine Tiefe auf, die 2,0 - 8,0 mm, vorzugsweise jedoch ein Drittel ihrer vertikalen Breite entspricht. In Fig. 1 sind die Sollfaltkerben abgerundet dargestellt, doch könnten sie auch v-förmig ausgebildet sein.The predetermined folding notches 25 have a depth which corresponds to 2.0-8.0 mm, but preferably one third of their vertical width. In 1 For example, the creases of weakness are shown rounded, but they could be v-shaped.

Vom Fersenbereich zum Ballenbereich hin nimmt die Dicke der rinnenförmigen Elemente tendenziell ab. In Längsrichtung des Schuhs nimmt bei gleicher äusserer Breite auch die Wandstärke der rinnenförmigen Elemente 21 vom Fersenbereich zum Ballenbereich hin ab. Im Fersenbereich sind die rinnenförmigen Elemente 21 vorderseitig zudem etwas dicker als rückseitig, im Mittelfussbereich vorder- und rückseitig etwa gleich dick und im Ballenbereich vorderseitig etwas dünner als rückseitig.The thickness of the channel-shaped elements tends to decrease from the heel area to the ball area. In the longitudinal direction of the shoe, with the same outer width, the wall thickness of the channel-shaped elements 21 also decreases from the heel area to the ball area. In the heel area, the channel-shaped elements 21 are also somewhat thicker at the front than at the back, in the metatarsal area at the front and at the back about the same thickness and in the ball of the foot area at the front somewhat thinner than at the back.

Die Böden 27 der rinnenförmigen Elemente 21 sind jeweils flach ausgebildet und zwar sowohl auf ihrer Oberseite in den Rinnen als auch auf ihrer Unterseite. Zusammen mit der Randleiste 23 und etwas geneigten Flanken der Rinnen ergeben sich dadurch etwa trapezförmige Querschnitte für die seitlichen Öffnungen 24.The bottoms 27 of the channel-shaped elements 21 are each flat, both on their upper side in the channels and on their underside. Together with the edge strip 23 and the slightly inclined flanks of the channels, this results in approximately trapezoidal cross sections for the lateral openings 24.

Der gegenseitige Abstand der rinnenförmigen Elemente 21 ist in Längsrichtung des Schuhs so gross gewählt, dass sie individuell durch Scherung in dieser Richtung bis zum Verschluss ihrer seitlichen Öffnungen 24 durch flaches Ablegen verformbar sind. Diese Art der Verformung wird durch die Sollfaltkerben 25 wesentlich begünstigt bzw. unterstützt.The mutual spacing of the channel-shaped elements 21 is chosen so large in the longitudinal direction of the shoe that they individually by shearing in this direction up to Closure of their side openings 24 are deformable by flat filing. This type of deformation is significantly promoted or supported by the predetermined folding notches 25 .

Wie dies in Fig. 2 mit Blick von unten auf die Lauffläche des Schuhs erkennbar ist, erstreckt sich ein Längsschlitz 22 in der Mittelsohle 20 vom Fersenbereich bis in den Ballenbereich annähernd über die gesamte Länge des Schuhs, wodurch die Mittelsohle 20 in einen medialen und einen lateralen Teil unterteilt ist. Die beiden Teile sind lediglich hinten am Schuhende und vorn an der Schuhspitze miteinander verbunden. Durch den Längsschlitz 22 ergeben sich lateralseitig und medialseitig nebeneinander angeordnete Paare von rinnenförmigen Elementen 21, die unabhängig voneinander verformbar sind.Like this in 2 As can be seen looking at the running surface of the shoe from below, a longitudinal slot 22 in the midsole 20 extends from the heel area to the ball area almost over the entire length of the shoe, whereby the midsole 20 is divided into a medial and a lateral part. The two parts are only connected to each other at the back of the shoe and at the front of the shoe toe. The longitudinal slot 22 results in pairs of channel-shaped elements 21 which are arranged next to one another on the lateral and medial sides and can be deformed independently of one another.

Gemäss Fig. 2 ist der Längsschlitz 22 in sich gebogen und so angeordnet, dass die rinnenförmigen Elemente 21 im Fersenbereich und Mittelfussbereich medial kürzer als lateral und im Ballenbereich medial länger als lateral sind. Durch die Form und Lage des Längsschlitzes lässt sich insbesondere die Abrollcharakteristik der Sohlenkonstruktion beeinflussen und einstellen.According to 2 the longitudinal slot 22 is bent in itself and arranged in such a way that the channel-shaped elements 21 are shorter medially than laterally in the heel area and metatarsal area and longer medially than laterally in the ball of the foot area. In particular, the rolling characteristics of the sole construction can be influenced and adjusted by the shape and position of the longitudinal slit.

Die nach unten offenen Vertiefungen zwischen den rinnenförmigen Elementen 21 sowie der Längsschlitz 22 erweitern sich vorzugsweise jeweils etwas nach unten, was dem Einklemmen beispielsweise von Steinen entgegenwirkt und die Selbstreinigung der Sohlenkonstruktion unterstützt.The downwardly open indentations between the channel-shaped elements 21 and the longitudinal slot 22 preferably widen somewhat downwards, which counteracts the jamming of stones, for example, and supports the self-cleaning of the sole construction.

Zum Schutz der Sohlenkonstruktion gegen Abrasion sind die am stärksten belasteten rinnenförmigen Elemente 21 im Fersen- und im Ballenbereich mit dünnschichtigen Auflagen aus einem hartelastischen Material wie Gummi versehen, wobei in Fig. 2 nur eine dieser mit einer schrägen Rippung dargestellten Auflagen mit 30 bezeichnet ist. An den übrigen rinnenförmigen Elemente 21ist das Material der Zwischensohle 20 direkt dem Bodenkontakt ausgesetzt.To protect the sole construction against abrasion, the channel-shaped elements 21 subjected to the greatest loads in the heel and ball area are provided with thin layers of hard-elastic material such as rubber, with 2 only one of these supports shown with an oblique ribbing is denoted by 30. At the remaining channel-shaped elements 21, the material of the midsole 20 is directly exposed to ground contact.

BEZUGSZEICHENLISTEREFERENCE LIST

1010
Oberteiltop
2020
Mittelsohlemidsole
2121
rinnenförmige Elementechannel-shaped elements
2222
Längsschlitzlongitudinal slit
2323
Randleistesidebar
2424
seitliche Öffnungenside openings
2525
Sollfaltkerbentarget folding notches
2727
Bödenfloors
3030
Auflagenpads

Claims (4)

  1. A sole structure for a flexible shoe with a flexibly elastic mid-sole (20) which comes at least partially into contact with the ground during walking or running and which has laterally open, channel-like elements (21) with a flat bottom, which are oriented transversely with respect to the longitudinal direction of the mid-sole and project downwards against the ground,
    the mid-sole (20) having an edge strip (23), which bridges each of the channel-like elements (21) and narrows the cross-section of the channels in the channel-like elements, and defining the height of the lateral openings (24) of the channel-like elements, wherein
    the outwardly directed end faces of the channel-like elements (21) being provided with horizontal predetermined fold notches (25), and
    the channel-like elements (21) being deformable vertically and/or in the longitudinal direction in the region of the edge strip (23) until their lateral openings (24) close under the effect of forces occurring vertically and/or in the longitudinal direction during walking or running,
    characterised in that
    the predetermined fold notches (25) have a vertical width corresponding to the height of the lateral openings (24) of the channel-like elements and are each aligned with the lateral openings (24) of the channel-like elements.
  2. The sole structure according to Claim 1, characterised in that the horizontal predetermined fold notches (25) have a depth, 2.0-8.0 mm, which preferably corresponds to a third of their vertical width.
  3. The sole structure according to either of Claims 1-2, characterised in that the mid-sole (20) is divided into a medial part and a lateral part by a longitudinal slit (22) extending from the heel region to the ball region.
  4. The sole structure according to any of Claims 1-3, characterised in that the thickness of the channel-like elements (21) tends to decrease from the heel region towards the ball region, wherein the thickness at least of the rearmost channel-like element (21) is preferably also greater medially than laterally.
EP16726038.9A 2015-05-20 2016-05-18 Sole structure for a flexible shoe Active EP3297483B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00702/15A CH711110A2 (en) 2015-05-20 2015-05-20 Sole construction for a flexible shoe.
PCT/EP2016/061149 WO2016184920A1 (en) 2015-05-20 2016-05-18 Sole structure for a flexible shoe

Publications (2)

Publication Number Publication Date
EP3297483A1 EP3297483A1 (en) 2018-03-28
EP3297483B1 true EP3297483B1 (en) 2022-04-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP16726038.9A Active EP3297483B1 (en) 2015-05-20 2016-05-18 Sole structure for a flexible shoe

Country Status (12)

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US (1) US10721992B2 (en)
EP (1) EP3297483B1 (en)
JP (1) JP6765420B2 (en)
KR (1) KR102523380B1 (en)
CN (1) CN107920625B (en)
AU (1) AU2016265177B2 (en)
BR (1) BR112017024916B1 (en)
CA (1) CA2988630C (en)
CH (1) CH711110A2 (en)
MX (1) MX2017014785A (en)
RU (1) RU2710800C2 (en)
WO (1) WO2016184920A1 (en)

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Also Published As

Publication number Publication date
CN107920625A (en) 2018-04-17
BR112017024916B1 (en) 2021-04-13
RU2017144441A3 (en) 2019-06-20
RU2710800C2 (en) 2020-01-14
KR102523380B1 (en) 2023-04-20
RU2017144441A (en) 2019-06-20
WO2016184920A1 (en) 2016-11-24
MX2017014785A (en) 2018-03-22
CA2988630C (en) 2023-09-26
US10721992B2 (en) 2020-07-28
CN107920625B (en) 2020-11-27
EP3297483A1 (en) 2018-03-28
KR20180034325A (en) 2018-04-04
AU2016265177A1 (en) 2018-01-18
BR112017024916A2 (en) 2018-07-31
US20180295934A1 (en) 2018-10-18
JP2018516727A (en) 2018-06-28
CH711110A2 (en) 2016-11-30
AU2016265177B2 (en) 2020-05-14
CA2988630A1 (en) 2016-11-24
JP6765420B2 (en) 2020-10-07

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