EP0278094B2 - Shoe bottom for a sports shoe - Google Patents
Shoe bottom for a sports shoe Download PDFInfo
- Publication number
- EP0278094B2 EP0278094B2 EP87118557A EP87118557A EP0278094B2 EP 0278094 B2 EP0278094 B2 EP 0278094B2 EP 87118557 A EP87118557 A EP 87118557A EP 87118557 A EP87118557 A EP 87118557A EP 0278094 B2 EP0278094 B2 EP 0278094B2
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- EP
- European Patent Office
- Prior art keywords
- shoe
- shoe bottom
- longitudinal direction
- respect
- strong
- 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.)
- Expired - Lifetime
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Classifications
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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
-
- 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
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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
Definitions
- the invention relates to a shoe bottom, in particular for sports shoes, with the features according to the preamble of claim 1.
- Such weak points can be achieved by reducing the thickness of the shoe bottom or sole in the joint area, expediently leaving a central web running approximately in the longitudinal direction of the shoe (DE-AS 14 85 804), or recesses which protrude from the side edge of the shoe bottom can be provided, which can be provided by a less rigid filling material are filled (DE-PS 943 996).
- insoles In an effort to prevent the natural rotation of the forefoot relative to the heel during the rolling movement through the shoe bottom, insoles have already been designed with weakening zones in the joint area (DE-A 21 30 628). If such known insoles are intended for shoes with a stressed heel, they have a steel hinge spring to support the arch of the foot, ie to prevent the sole joint from penetrating, which spring is designed or arranged in such a way that it has as little effect as possible on the desired rotatability of the insole . Since, in the case of a shoe bottom of the type in question, the longitudinal arch of the foot is supported via the running side of the sole which is also provided in the joint area, ie there is no pronounced heel, there is no need for supporting the steel joint spring. Therefore, one would omit the steel hinge spring in any case when using such a known insole for a shoe bottom of this type, in sports shoes for weight reasons alone. This does not eliminate the above-mentioned lack of flexibility in the joint area.
- the invention is therefore based on the object of providing a shoe bottom of the type described at the outset which ensures better guidance and support of the foot without impairing the desired torsional decoupling between the front and rear sole.
- the hinge of the shoe bottom is thus stiffened against bending about an axis running transversely to the longitudinal direction of the shoe by stiffening means, the increased resistance to bending primarily affecting such a bend, which is known as the curvature of the
- the bottom of the shoe has a convex effect downwards, ie towards the running side.
- a tensile element as a stiffening means, which is anchored in the shoe longitudinal direction in the shoe bottom close to its running side.
- This tensile element itself does not need to have any bending stiffness, since the stiffening of the shoe bottom is achieved due to the lack or only very little stretchability of the tensile element and its arrangement below the "neutral bending fiber" of the shoe bottom.
- the flexural rigidity of the shoe bottom in the joint can therefore be controlled within wide limits by using such a traction means without the torsional rigidity of the shoe bottom in the joint being influenced thereby.
- Another significant advantage is that compared to stiffeners that have their own bending stiffness (e.g. steel hinge springs or the like), the stiffening can be kept considerably easier by the traction means, which is important for sports shoes. Because tensile and almost inextensible materials of high strength and very low weight are available, e.g. Metal wires, carbon and glass fibers, plastic wires and ribbon-like elements made from them.
- the weak points in the joint of the shoe bottom that reduce the torsional rigidity are recesses that protrude transversely or obliquely (towards the front or rear) from the edge and that extend to a web of the shoe bottom that runs in the longitudinal direction of the shoe .
- the web expediently runs approximately in the middle between the side edges of the shoe bottom.
- the tensile element runs along this web. It can be - in the usual manufacture of the shoe bottom made of plastic - embedded in the web near its underside.
- the tensile element along the free lower surface of the web, wherein a wear sole attached to the front sole and the rear sole ensures that the tensile element does not come into direct contact with the ground. In this way, the tensile element is arranged very close to the running side of the shoe bottom.
- the stiffening means even if it is formed by the tensile element discussed above, can be embedded in its entire length in the shoe bottom, so that it is able to transmit stiffening forces over its entire length.
- this is not mandatory, since both rigid and only tensile stiffeners essentially require that both ends be fixed sufficiently firmly in the shoe bottom.
- Anchoring inserts are provided at the ends of the stiffening means, which are fastened in the shoe bottom, for example directly embedded. These anchoring inserts are designed so that they can resist a shift in the longitudinal direction of the shoe, in accordance with the forces acting on them when the shoe bottom rolls off.
- the outsole shown in the drawings which together with an insole, not shown, forms a shoe bottom, consists essentially of a midsole 1 made of foamed plastic, e.g. Polyurethane, and a running sole 2, which can be profiled.
- the outsole is divided into a front sole area 3 and a rear sole area 4 in the joint 5. The subdivision is achieved by two recesses 6, 7 projecting obliquely forward and inward from the outer edge of the sole or the inner edge of the sole, which - as can be seen in FIG. 3 - penetrate the shoe bottom by more than half its height.
- the thickness of the midsole 1 is left unchanged, so that a web 8 running approximately centrally in the longitudinal direction of the sole is thereby created.
- the front sole area 3 is "decoupled" in terms of torsion with respect to the rear sole area 4, i.e. the front sole area 3 can rotate relative to the rear sole area 4 about an axis running approximately along the web 8, which corresponds to the natural foot movement during the rolling process and therefore promotes this.
- the stiffening element 9 consists of tensile and low-stretch plastic wires 91 (for example made of nylon), which are combined in parallel next to one another to form a flat track, and of anchoring inserts 92 and 93 fastened to the ends of the plastic wires 91.
- the plastic wires 91 which have a diameter of 1, for example , 5 mm, are firmly connected to the anchoring inserts 92, 93, which are also expediently made of plastic, for example by direct embedding in them.
- the plastic wires 91 can also be connected to one another along their length.
- the anchoring inserts 92, 93 are plate-shaped (see FIG. 2) and have lateral wings 94. Openings 95 are provided in the anchoring inserts 92, 93 through which the material of the midsole 1 during casting or Can pass through the molding process and embed the anchoring inserts.
- the wear sole has one in both sections, namely in the front sole area 3 and in the rear sole area 4 Interruption 10 in which the plastic wires 91 are exposed. This avoids the curvature of the band formed by the plastic wires 91 when the front sole area 3 is twisted relative to the rear sole area 4.
- the recess 10 is not necessary; it is entirely possible to completely cover the stiffening element 9 and in particular the plastic wires 91 by means of the wear sole 2 in order to protect them from damage.
- the bending stiffness of the outsole about a transverse axis running perpendicular to the web 8 can be controlled by the resistance to tensile expansion of the stiffening element 9. If the bending stiffness is to be increased, it can be considered to increase the number and thus the layer width of the plastic wires 91. In principle, a thickening of the plastic wires is also conceivable, but it should be avoided that the torsional rigidity of the shoe bottom in the joint is increased by a thickening.
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Coloring (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Walking Sticks, Umbrellas, And Fans (AREA)
Abstract
Description
Die Erfindung betrifft einen Schuhboden, insbesondere für Sportschuhe, mit den Merkmalen gemäß dem Oberbegriff des Anspruches 1.The invention relates to a shoe bottom, in particular for sports shoes, with the features according to the preamble of claim 1.
Aus der Biomechanik ist es bekannt, daß bei der natürlichen Abrollbewegung des Fusses zwischen dem Vorfuß und der Ferse etwa im Bereich der Keilbeine, d.h. über dem Gelenk des Schuhbodens, eine Verdrehung um eine etwa in Fußlängsrichtung verlaufende Achse stattfindet. Um dieser Verdrehung Rechnung zu tragen, ist es bekannt, im Gelenk des Schuhbodens gezielt Schwachstellen anzubringen, die eine Verdrehbarkeit des Vordersohlenbereiches gegenüber dem Hintersohlenbereich um eine etwa in Schuhlängsrichtung verlaufende Achse ermöglichen (DE-PS 804 901). Solche Schwachstellen können durch eine Verringerung der Schuhboden- oder Sohlendicke im Gelenkbereich erzielt sein, wobei zweckmässigerweise ein etwa in Schuhlängsrichtung verlaufender zentraler Steg verbleibt (DE-AS 14 85 804), oder es können vom Seitenrand des Schuhbodens her einspringende Ausnehmungen vorgesehen sein, die durch ein weniger steifes Füllmaterial ausgefüllt sind (DE-PS 943 996).From biomechanics it is known that during the natural rolling movement of the foot between the forefoot and the heel, approximately in the area of the sphenoid, i.e. above the joint of the shoe bottom, there is a rotation about an axis running approximately in the longitudinal direction of the foot. In order to take this twist into account, it is known to specifically create weak points in the joint of the shoe bottom, which enable the front sole area to be rotated relative to the rear sole area about an axis running approximately in the longitudinal direction of the shoe (DE-PS 804 901). Such weak points can be achieved by reducing the thickness of the shoe bottom or sole in the joint area, expediently leaving a central web running approximately in the longitudinal direction of the shoe (DE-AS 14 85 804), or recesses which protrude from the side edge of the shoe bottom can be provided, which can be provided by a less rigid filling material are filled (DE-PS 943 996).
Die die Torsionssteifigkeit herabsetzenden Schwachstellen im Gelenk des Schuhbodens führen zwangsläufig auch zu einer Herabsetzung der Biegesteifigkeit des Schuhbodens um eine querverlaufende Achse. Dies ist nach der vorstehend angegebenen Lehre auch erwünscht, wobei lediglich vorgeschlagen wurde, durch eine Keillangsohle das Durchtreten des Schuhbodens im Gelenkbereich von Schuhen mit Absatz zu verhindern (vgl. DE-GBM 17 19 678), indem hierdurch dem Fuß auch im Gelenkbereich eine feste Auftrittsfläche geboten wird. Insbesondere bei Sportschuhen hat sich jedoch gezeigt, daß die prinzipiell erwünschte Verdreh- oder Verwringbarkeit von Vordersohle gegenüber Hintersohle zu einer unzureichenden Führung und Halterung des Fusses führt, wenn der Schuhboden im Gelenkbereich nicht nur torsionsnachgiebig, sondern auch biegeweich ist, weil hierdurch der Fuß im Bereich der Mittelfußgelenke zuviel Bewegungsfreiheit hat. Das macht sich als Mangel an seitlicher Stabilität insbesondere dann bemerkbar, wenn der Läufer mit dem Fuß auf Bahnunebenheiten tritt, was beim Wandern, bei Waldläufen, beim Jogging und dgl. in der Regel unvermeidbar ist.The weak points in the joint of the shoe bottom which reduce the torsional rigidity inevitably also lead to a reduction in the bending rigidity of the shoe bottom about a transverse axis. This is also desirable according to the teaching given above, but it has only been proposed to prevent the bottom of the shoe from passing through in the joint area of shoes with a heel (cf. Performance space is offered. In sports shoes in particular, however, it has been shown that the principally desired rotatability or usability of the front sole compared to the rear sole leads to inadequate guidance and support of the foot if the base of the shoe in the joint area is not only flexible, but also flexible, because this causes the foot to be in the area the metatarsals have too much freedom of movement. This is particularly noticeable as a lack of lateral stability when the runner steps on bumps with the foot, which is generally unavoidable when hiking, running in the forest, jogging and the like.
In dem Bestreben, die natürliche Verdrehung des Vorfußes relativ zur Ferse bei der Abrollbewegung durch den Schuhboden zu behindern, sind auch bereits Brandsohlen entspechend mit Schwächungszonen im Gelenkbereich ausgebildet worden (DE-A 21 30 628). Sofern solche bekannten Brandsohlen für Schuhe mit einem betonten Absatz bestimmt sind, weisen sie zur Unterstützung des Fußlängsgewölbes, d. h. zur Verhinderung eines Durchtretens des Sohlengelenks, eine Stahlgelenkfeder auf, die so ausgebildet bzw. angeordnet ist, daß sie die erwünschte Verdrehbarkeit der Brandsohle möglichst wenig beeinträchtigt. Da bei einem Schuhboden der hier zur Rede stehenden Art die Abstützung des Fußlängsgewölbes über die auch im Gelenkbereich vorgesehene Laufseite der Sohle erfolgt, d. h. ein ausgeprägter Absatz nicht vorhanden ist, bedarf es zur Abstützung der Stahlgelenkfeder nicht. Deshalb würde man bei Verwendung einer solchen bekannten Brandsohle für einen Schuhboden dieser Art, bei Sportschuhen schon aus Gewichtsgründen, die Stahlgelenkfeder in jedem Falle weglassen. Damit ist der vorstehend angegebene Mangel der Biegeweichheit im Gelenkbereich nicht beseitigt.In an effort to prevent the natural rotation of the forefoot relative to the heel during the rolling movement through the shoe bottom, insoles have already been designed with weakening zones in the joint area (DE-A 21 30 628). If such known insoles are intended for shoes with a stressed heel, they have a steel hinge spring to support the arch of the foot, ie to prevent the sole joint from penetrating, which spring is designed or arranged in such a way that it has as little effect as possible on the desired rotatability of the insole . Since, in the case of a shoe bottom of the type in question, the longitudinal arch of the foot is supported via the running side of the sole which is also provided in the joint area, ie there is no pronounced heel, there is no need for supporting the steel joint spring. Therefore, one would omit the steel hinge spring in any case when using such a known insole for a shoe bottom of this type, in sports shoes for weight reasons alone. This does not eliminate the above-mentioned lack of flexibility in the joint area.
Der Erfindung liegt daher die Aufgabe zugrunde, einen Schuhboden der eingangs beschriebenen Art zu schaffen, der ohne Beeinträchtigung der erwünschten torsionsmässigen Entkoppelung zwischen Vorder- und Hintersohle eine bessere Führung und Halterung des Fusses gewährleistet.The invention is therefore based on the object of providing a shoe bottom of the type described at the outset which ensures better guidance and support of the foot without impairing the desired torsional decoupling between the front and rear sole.
Erfindungsgemäß wird dies erreicht durch die Ausgestaltung gemäß dem Kennzeichen des Anspruches 1.According to the invention, this is achieved by the configuration according to the characterizing part of claim 1.
Erfindungsgemäß ist somit das Gelenk des Schuhbodens gegen eine Biegung um eine quer zur Schuhlängsrichtung verlaufende Achse durch Versteifungsmittel versteift, wobei die erhöhte Widerstandsfähigkeit gegen Biegung vor allem eine solche Biegung betrifft, die sich als Krümmung des Schuhbodens konvex nach unten, d.h. zur Laufseite hin, auswirkt.According to the invention, the hinge of the shoe bottom is thus stiffened against bending about an axis running transversely to the longitudinal direction of the shoe by stiffening means, the increased resistance to bending primarily affecting such a bend, which is known as the curvature of the The bottom of the shoe has a convex effect downwards, ie towards the running side.
Mit besonderem Vorteil wird als Versteifungsmittel ein zugfestes Element eingesetzt, das in Schuhlängsrichtung verlaufend im Schuhboden nahe an dessen Laufseite verankert ist. Dieses zugfeste Element braucht selbst keinerlei Biegesteifigkeit zu haben, da die Versteifung des Schuhbodens aufgrund der fehlenden oder nur sehr geringen Dehnbarkeit des zugfesten Elements und dessen Anordnung unterhalb der "neutralen Biegefaser" des Schuhbodens erzielt wird. Das hat den bedeutsamen Vorteil, daß das zugfeste Element, das beispielsweise bandartig ausgebildet ist, keinerlei eigene Torsionssteifigkeit hat und daher die erwünschte Verdrehbarkeit der Vordersohle gegenüber der Hintersohle in keiner Weise beeinträchtigt. Die Biegesteifigkeit des Schuhbodens im Gelenk kann deshalb durch Verwendung eines solchen Zugmittels in weiten Grenzen gesteuert werden, ohne daß hierdurch die Torsionssteifigkeit des Schuhbodens im Gelenk beeinflusst wird. Ein weiterer wesentlicher Vorteil besteht darin, daß im Vergleich zu Versteifungsmitteln, die eine eigene Biegesteifigkeit besitzen (z.B. Stahlgelenkfedern od.dgl.) die Versteifung durch das Zugmittel erheblich leichter gehalten werden kann, was für Sportschuhe von Bedeutung ist. Denn es stehen zugfeste und nahezu undehnbare Materialien hoher Festigkeit und sehr geringen Gewichts zur Verfügung, z.b. Metalldrähte, Kohle- und Glasfasern, Kunststoffdrähte und bandartige Elemente, die aus solchen hergestellt sind.It is particularly advantageous to use a tensile element as a stiffening means, which is anchored in the shoe longitudinal direction in the shoe bottom close to its running side. This tensile element itself does not need to have any bending stiffness, since the stiffening of the shoe bottom is achieved due to the lack or only very little stretchability of the tensile element and its arrangement below the "neutral bending fiber" of the shoe bottom. This has the significant advantage that the tensile element, which is designed, for example, like a band, has no torsional rigidity of its own and therefore does not in any way impair the desired rotatability of the front sole with respect to the rear sole. The flexural rigidity of the shoe bottom in the joint can therefore be controlled within wide limits by using such a traction means without the torsional rigidity of the shoe bottom in the joint being influenced thereby. Another significant advantage is that compared to stiffeners that have their own bending stiffness (e.g. steel hinge springs or the like), the stiffening can be kept considerably easier by the traction means, which is important for sports shoes. Because tensile and almost inextensible materials of high strength and very low weight are available, e.g. Metal wires, carbon and glass fibers, plastic wires and ribbon-like elements made from them.
In einer besonderen Ausgestaltung der Erfindung ist in bekannter Weise vorgesehen, daß die die Torsionssteifigkeit herabsetzenden Schwachstellen im Gelenk des Schuhbodens vom Rand her quer oder schräg (nach vorne oder hinten) einspringende Ausnehmungen sind, die sich bis zu einem in Schuhlängsrichtung verlaufenden Steg des Schuhbodens erstrecken. Der Steg verläuft zweckmässigerweise etwa mittig zwischen den seitlichen Schuhbodenrändern. Bei dieser Ausgestaltung ist vorgesehen, daß das zugfeste Element längs dieses Steges verläuft. Dabei kann es - bei der üblichen Herstellung des Schuhbodens aus Kunststoff - in den Steg nahe an dessen Unterseite eingebettet sein. Möglich ist aber auch die Anordnung des zugfesten Elements längs der freien Unterfläche des Steges, wobei durch eine auf der Vordersohle und der Hintersohle befestigte Verschleißsohle dafür gesorgt ist, daß das zugfeste Element nicht direkt in Bodenkontakt kommt. Auf diese Weise ist das zugfeste Element sehr nahe an der Laufseite des Schuhbodens angeordnet.In a special embodiment of the invention, it is provided in a known manner that the weak points in the joint of the shoe bottom that reduce the torsional rigidity are recesses that protrude transversely or obliquely (towards the front or rear) from the edge and that extend to a web of the shoe bottom that runs in the longitudinal direction of the shoe . The web expediently runs approximately in the middle between the side edges of the shoe bottom. In this embodiment it is provided that the tensile element runs along this web. It can be - in the usual manufacture of the shoe bottom made of plastic - embedded in the web near its underside. However, it is also possible to arrange the tensile element along the free lower surface of the web, wherein a wear sole attached to the front sole and the rear sole ensures that the tensile element does not come into direct contact with the ground. In this way, the tensile element is arranged very close to the running side of the shoe bottom.
Das Versteifungsmittel, auch wenn es durch das vorstehend besprochene zugfeste Element gebildet ist, kann auf seiner ganzen Länge im Schuhboden eingebettet sein, so daß es auf seiner ganzen Länge in der Lage ist, versteifend wirkende Kräfte zu übertragen. Dies ist jedoch nicht zwingend, da es sowohl bei biegesteifen als auch nur zugfesten Versteifungsmitteln im wesentlichen darauf ankommt, deren beide Enden ausreichend fest im Schuhboden zu fixieren. Aus diesem Grund sind zweckmässigerweise an den Enden des Versteifungsmittels Verankerungseinsätze vorgesehen, die im Schuhboden befestigt, z.B. direkt eingebettet sind. Diese Verankerungseinsätze sind so ausgelegt, daß sie sich einer Verlagerung in Schuhlängsrichtung, entsprechend den auf sie beim Abrollen des Schuhbodens einwirkenden Kräften, widersetzen können.The stiffening means, even if it is formed by the tensile element discussed above, can be embedded in its entire length in the shoe bottom, so that it is able to transmit stiffening forces over its entire length. However, this is not mandatory, since both rigid and only tensile stiffeners essentially require that both ends be fixed sufficiently firmly in the shoe bottom. For this reason, are expedient Anchoring inserts are provided at the ends of the stiffening means, which are fastened in the shoe bottom, for example directly embedded. These anchoring inserts are designed so that they can resist a shift in the longitudinal direction of the shoe, in accordance with the forces acting on them when the shoe bottom rolls off.
Ein Ausführungsbeispiel der vorliegenden Erfindung ist nachfolgend anhand der beiliegenden Zeichnungen näher erläutert. In den Zeichnungen zeigen:
- Fig. 1 eine Untenansicht einer Laufsohle nach der Erfindung, teilweise aufgebrochen;
- Fig. 2 eine Seitenansicht der Laufsohle nach Fig. 1, teilweise geschnitten längs der Linie II-II in Fig. 1, und
- Fig. 3 eine Teil-Seitenansicht der Laufsohle gemäß Fig. 1, gesehen in Richtung des Pfeiles III.
- Figure 1 is a bottom view of an outsole according to the invention, partially broken away.
- Fig. 2 is a side view of the outsole of Fig. 1, partially sectioned along the line II-II in Fig. 1, and
- Fig. 3 is a partial side view of the outsole of FIG. 1, seen in the direction of arrow III.
Die in den Zeichnungen dargestellte Laufsohle, die zusammen mit einer nicht dargestellten Brandsohle einen Schuhboden bildet, besteht im wesentlichen aus einer Zwischensohle 1 aus geschäumtem Kunststoff, z.b. Polyurethan,und einer laufseitig angeordneten Verschleißsohle 2, die profiliert sein kann. Die Laufsohle ist im Gelenk 5 in einen Vordersohlenbereich 3 und einen Hintersohlenbereich 4 unterteilt. Die Unterteilung ist erzielt durch zwei vom Sohlenaußenrand bzw. Sohleninnenrand schräg nach vorne und innen einspringende Ausnehmungen 6, 7, die - wie aus Fig. 3 hervorgeht - den Schuhboden mehr als zur Hälfte seiner Höhe durchsetzen. Zwischen den einander zugewendeten Enden der Ausnehmungen 6 und 7 ist die Zwischensohle 1 in ihrer Dicke unverändert belassen, so daß dadurch ein etwa mittig in Sohlenlängsrichtung verlaufender Steg 8 geschaffen ist. Durch die Ausnehmungen 6, 7 wird der Vordersohlenbereich 3 gegenüber dem Hintersohlenbereich 4 torsionsmässig "entkoppelt", d.h. der Vordersohlenbereich 3 kann um eine etwa längs des Steges 8 verlaufende Achse sich gegenüber dem Hintersohlenbereich 4 verdrehen, was der natürlichen Fußbewegung beim Abrollvorgang entspricht und diesen daher fördert.The outsole shown in the drawings, which together with an insole, not shown, forms a shoe bottom, consists essentially of a midsole 1 made of foamed plastic, e.g. Polyurethane, and a running sole 2, which can be profiled. The outsole is divided into a front
In die Zwischensohle 1 ist ein im Ganzen mit 9 bezeichnetes Versteifungselement eingebettet. Das Versteifungselement 9 besteht aus zugfesten und dehnungsarmen Kunststoffdrähten 91 (z.B. aus Nylon), die parallel nebeneinander zu einer ebenen Bahn vereinigt sind, sowie aus an den Enden der Kunststoffdrähte 91 befestigten Verankerungseinsätzen 92 und 93. Die Kunststoffdrähte 91, die beispielsweise einen Durchmesser von 1,5 mm aufweisen, sind mit den zweckmässigerweise ebenfalls aus Kunststoff hergestellten Verankerungseinsätzen 92, 93 fest verbunden, beispielsweise durch direktes Einbetten in diese. Die Kunststoffdrähte 91 können miteinander auf ihrer Länge ebenfalls verbunden sein. Die Verankerungseinsätze 92, 93 sind plattenförmig (vgl. Fig. 2) und weisen seitliche Flügel 94 auf. In den Verankerungseinsätzen 92, 93 sind Durchbrüche 95 vorgesehen, durch welche das Material der Zwischensohle 1 beim Gieß- oder Formvorgang hindurchtreten und die Verankerungseinsätze einbetten kann.In the midsole 1, a stiffening element, generally designated 9, is embedded. The stiffening element 9 consists of tensile and low-stretch plastic wires 91 (for example made of nylon), which are combined in parallel next to one another to form a flat track, and of anchoring
Wie aus Fig. 2 hervorgeht, liegt die Unterseite des Steges 8, längs der sich die Kunststoffdrähte 91 erstrecken, oberhalb der Laufseite der Verschleißsohle 2. In dem gezeigten Ausführungsbeispiel weist die Verschleißsohle in beiden Abschnitten, nämlich im Vordersohlenbereich 3 und im Hintersohlenbereich 4, eine Unterbrechung 10 auf, in der die Kunststoffdrähte 91 freiliegen. Hierdurch wird die Behinderung einer Verwölbung des durch die Kunststoffdrähte 91 gebildeten Bandes bei einer Torsion des Vordersohlenbereiches 3 gegenüber dem Hintersohlenbereich 4 vermieden. Die Ausnehmung 10 ist jedoch nicht erforderlich; es ist durchaus möglich, mittels der Verschleißsohle 2 das Versteifungselement 9 und insbesondere die Kunststoffdrähte 91 völlig zu bedecken, um diese vor Beschädigungen zu schützen.As can be seen from FIG. 2, the underside of the
Aus der vorstehenden Erläuterung ergibt sich, daß die Biegesteifigkeit der Laufsohle um eine senkrecht zu dem Steg 8 verlaufende Querachse durch die Widerstandsfähigkeit gegen Zugdehnung des Versteifungselementes 9 gesteuert werden kann. Soll die Biegesteifigkeit erhöht werden, so kann daran gedacht werden, die Anzahl und damit die Lagenbreite der Kunststoffdrähte 91 zu erhöhen. Prinzipiell ist auch eine Verdickung der Kunststoffdrähte denkbar, jedoch soll vermieden werden, daß durch eine Verdickung die Torsionssteifigkeit des Schuhbodens im Gelenk erhöht wird.It follows from the above explanation that the bending stiffness of the outsole about a transverse axis running perpendicular to the
Es versteht sich, daß anstelle der im Ausführungsbeispiel beschriebenen Kunststoffdrähte 91 auch andere zugfeste Versteifungsmittel eingesetzt werden können. So ist daran zu denken, mittels der Verankerungseinsätze 92, 93 ein Netz, Geflecht oder Gewebe aus Glas- oder Kohlefasern vorzusehen, das bandförmig ausgebildet und in ähnlicher Weise in der Sohle eingebettet ist, wie dies vorstehend erläutert ist. Durch Wahl der Bandbreite eines solchen Gewebes kann die Zugfestigkeit und damit die resultierende Biegesteifigkeit in weiten Grenzen gesteuert werden, ohne das Gewicht des Schuhbodens merklich zu beeinflussen. Im Rahmen der Erfindung liegt jedoch auch die Anordnung flacher Metallstreifen, die aufgrund einer geringen Dicke eine entsprechend geringe Biegesteifigkeit besitzen, jedoch erhebliche Zugfestigkeit haben.It goes without saying that instead of the
Claims (8)
- A shoe bottom, in particular for sports shoes, which in the shank (5) has weak locations (6, 7) for reducing the torsional stiffness about an axis extending substantially in the longitudinal direction of the shoe, in order to permit twisting, adapted to the natural movement of the foot, of the front sole portion (3) relative to the rear sole portion (4), about said axis, and whose ground-engaging side on meeting the ground also involves contact with the ground at least in part in the shank (5), characterised in that the shank (5) of the shoe bottom (1, 2) is stiffened against bending about an axis extending transversely with respect to the longitudinal direction of the shoe by a strip-like or rod-like stiffening element (9) which is directed in the longitudinal direction of the shoe.
- A shoe bottom according to claim 1 characterised in that the stiffening bans is an element (91) which is strong in respect of tension and which, extending in the longitudinal direction of the shoe, is anchored in the shoe bottom (1, 2) adjacent to the ground-engaging side thereof.
- A shoe bottom according to claim 2 characterised in that the element (91) which is strong in respect of tension is of a strip-like configuration and is fixed in the shoe bottom at the ends of the element (91) by means of anchoring inserts (92, 93).
- A shoe bottom according to claim 2 or claim 3 wherein the weak locations for reducing torsional stiffness are recesses (6, 7) which extend inwardly from the edge transversely or inclinedly and which extend to a limb portion (8) of the shoe bottom, which extends in the longitudinal direction of the shoe, characterised in that the element (91) which is strong in respect of tension extends along the limb portion (8).
- A shoe bottom according to claim 4 characterised in that the element (91) which is strong in respect of tension extends along the free underneath surface of the limb portion (8).
- A shoe bottom according to one of claims 2 to 5 characterised in that the element which is strong in respect of tension is formed by rods or wires of metal, plastics material, carbon or glass fibres or the like.
- A shoe bottom according to claim 6 characterised in that the rods or wires are arranged in parallel relationship with each other and are connected to each other for example by adhesive or welding.
- A shoe bottom according to one of claims 2 to 5 characterised in that the element which is strong in respect of tension is a cloth or mesh consisting of low-stretch fibres which are resistant to tensile force.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87118557T ATE52668T1 (en) | 1987-02-07 | 1987-12-15 | SHOE BOTTOM FOR SPORTS SHOES. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873703858 DE3703858A1 (en) | 1987-02-07 | 1987-02-07 | SHOE BASE FOR SPORTSHOES |
DE3703858 | 1987-02-07 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0278094A2 EP0278094A2 (en) | 1988-08-17 |
EP0278094A3 EP0278094A3 (en) | 1988-10-05 |
EP0278094B1 EP0278094B1 (en) | 1990-05-16 |
EP0278094B2 true EP0278094B2 (en) | 1995-11-15 |
Family
ID=6320528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87118557A Expired - Lifetime EP0278094B2 (en) | 1987-02-07 | 1987-12-15 | Shoe bottom for a sports shoe |
Country Status (24)
Country | Link |
---|---|
EP (1) | EP0278094B2 (en) |
JP (1) | JPS63194602A (en) |
KR (1) | KR910008959B1 (en) |
CN (1) | CN1020668C (en) |
AT (1) | ATE52668T1 (en) |
AU (1) | AU593163B2 (en) |
BR (1) | BR8800441A (en) |
CS (1) | CS268548B2 (en) |
DD (1) | DD267422A5 (en) |
DE (2) | DE3703858A1 (en) |
DK (1) | DK165218C (en) |
ES (1) | ES2015037T5 (en) |
FI (1) | FI880344A (en) |
HU (1) | HUT57565A (en) |
IE (1) | IE61067B1 (en) |
MY (1) | MY102195A (en) |
NO (1) | NO166351C (en) |
NZ (1) | NZ223425A (en) |
PL (1) | PL270439A1 (en) |
PT (1) | PT86504B (en) |
SU (1) | SU1667624A3 (en) |
TR (1) | TR23089A (en) |
YU (1) | YU9788A (en) |
ZA (1) | ZA88824B (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2230935A (en) * | 1989-04-25 | 1990-11-07 | Calzaturificio Zamberlan S R L | Arch supporting insoles |
DE4018518C2 (en) * | 1989-07-08 | 1996-04-04 | Adidas Ag | Shoe, in particular sports shoe |
DE4339107A1 (en) * | 1993-11-16 | 1995-05-18 | Engros Schuhhaus Ag | Shoe sole |
WO1999047013A1 (en) | 1998-03-13 | 1999-09-23 | Jan Ortwig | Shoe with two-part sole |
DE19904744B4 (en) * | 1999-02-05 | 2005-11-10 | Adidas International Marketing B.V. | shoe |
ITTO20020010A1 (en) * | 2002-01-04 | 2003-07-04 | Diadora Spa | FOOTWEAR, IN PARTICULAR SPORTS FOOTWEAR, AND RELATED PRODUCTION METHOD. |
CN100528023C (en) | 2003-07-17 | 2009-08-19 | 红翼鞋业公司 | Integral spine structure for footwear |
US6973746B2 (en) * | 2003-07-25 | 2005-12-13 | Nike, Inc. | Soccer shoe having independently supported lateral and medial sides |
CN100360063C (en) * | 2005-01-31 | 2008-01-09 | 戴逸梅 | Multifunctional sports shoes |
JP4886774B2 (en) * | 2006-04-21 | 2012-02-29 | 株式会社アシックス | Sole with reinforced structure and sole with shock absorbing structure |
CN102475381A (en) * | 2010-11-26 | 2012-05-30 | 昆山多威体育用品有限公司 | Improved sole structure for sports shoes |
CN102763931B (en) * | 2011-05-05 | 2014-09-17 | 昆山多威体育用品有限公司 | Improved structure of sole of marathon shoe |
RU2555664C1 (en) * | 2012-03-09 | 2015-07-10 | Пума Се | Footwear, especially athletic footwear |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2095398A (en) * | 1936-01-18 | 1937-10-12 | Ray R Reeves | Combination arch support and flexible sole for footwear |
DE860322C (en) * | 1944-06-09 | 1952-12-18 | Continental Gummi Werke Ag | Sole made of rubber or rubber-like materials |
DE804901C (en) * | 1948-11-19 | 1951-05-04 | Johannes Schaller | Shoe bottom |
US2716296A (en) * | 1952-03-15 | 1955-08-30 | Leonard J Stein | Shoe shank reinforcement |
DE943996C (en) * | 1954-12-21 | 1956-08-16 | Johannes Schaller | Shoe bottom |
DE1719678U (en) * | 1955-07-04 | 1956-03-29 | Theo Koetter | ORTHOPEDIC SLIPPER. |
DE1485804B1 (en) * | 1963-03-18 | 1970-04-30 | Johannes Schaller | Sole for footwear |
DE1973324U (en) * | 1967-08-26 | 1967-11-23 | Rudolf Albrecht | PRE-FABRICATED FOOTBALL SHOE FIRED SOLE WITH NON-PRESSURE STEEL SPRINGED STUD SCREW |
FR1581499A (en) * | 1968-03-20 | 1969-09-19 | ||
GB1286902A (en) * | 1970-01-29 | 1972-08-31 | Luther Austin & Sons Ltd | Improvements in or relating to sports shoes |
DE2130628A1 (en) * | 1971-06-21 | 1972-12-28 | Franz Hassler | Insole for footwear |
US4922631A (en) * | 1988-02-08 | 1990-05-08 | Adidas Sportschuhfabriken Adi Dassier Stiftung & Co. Kg | Shoe bottom for sports shoes |
-
1987
- 1987-02-07 DE DE19873703858 patent/DE3703858A1/en active Granted
- 1987-12-15 EP EP87118557A patent/EP0278094B2/en not_active Expired - Lifetime
- 1987-12-15 DE DE8787118557T patent/DE3762693D1/en not_active Expired - Lifetime
- 1987-12-15 ES ES87118557T patent/ES2015037T5/en not_active Expired - Lifetime
- 1987-12-15 AT AT87118557T patent/ATE52668T1/en not_active IP Right Cessation
- 1987-12-31 TR TR898/87A patent/TR23089A/en unknown
- 1987-12-31 KR KR1019870015505A patent/KR910008959B1/en not_active IP Right Cessation
-
1988
- 1988-01-07 PT PT86504A patent/PT86504B/en not_active IP Right Cessation
- 1988-01-15 MY MYPI88000032A patent/MY102195A/en unknown
- 1988-01-20 YU YU00097/88A patent/YU9788A/en unknown
- 1988-01-21 HU HU88231A patent/HUT57565A/en unknown
- 1988-01-25 NO NO880284A patent/NO166351C/en unknown
- 1988-01-26 SU SU884355044A patent/SU1667624A3/en active
- 1988-01-26 FI FI880344A patent/FI880344A/en not_active Application Discontinuation
- 1988-01-27 IE IE22088A patent/IE61067B1/en not_active IP Right Cessation
- 1988-01-29 JP JP63019431A patent/JPS63194602A/en active Granted
- 1988-02-03 PL PL27043988A patent/PL270439A1/en unknown
- 1988-02-04 BR BR8800441A patent/BR8800441A/en not_active IP Right Cessation
- 1988-02-05 NZ NZ223425A patent/NZ223425A/en unknown
- 1988-02-05 CN CN88100614A patent/CN1020668C/en not_active Expired - Fee Related
- 1988-02-05 DK DK060988A patent/DK165218C/en not_active IP Right Cessation
- 1988-02-05 DD DD88312692A patent/DD267422A5/en unknown
- 1988-02-05 AU AU11332/88A patent/AU593163B2/en not_active Ceased
- 1988-02-05 CS CS88748A patent/CS268548B2/en unknown
- 1988-02-05 ZA ZA880824A patent/ZA88824B/en unknown
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