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EP3207815B1 - Shoe sole - Google Patents

Shoe sole Download PDF

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Publication number
EP3207815B1
EP3207815B1 EP17154770.6A EP17154770A EP3207815B1 EP 3207815 B1 EP3207815 B1 EP 3207815B1 EP 17154770 A EP17154770 A EP 17154770A EP 3207815 B1 EP3207815 B1 EP 3207815B1
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EP
European Patent Office
Prior art keywords
sole
shoe
foot
shoe sole
sole body
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.)
Active
Application number
EP17154770.6A
Other languages
German (de)
French (fr)
Other versions
EP3207815A1 (en
Inventor
Martin Leodolter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hartjes GmbH
Original Assignee
Hartjes GmbH
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Filing date
Publication date
Application filed by Hartjes GmbH filed Critical Hartjes GmbH
Publication of EP3207815A1 publication Critical patent/EP3207815A1/en
Application granted granted Critical
Publication of EP3207815B1 publication Critical patent/EP3207815B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/16—Pieced soles
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/0009—Footwear characterised by the material made at least partially of alveolar or honeycomb material
    • 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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts

Definitions

  • the invention relates to a shoe sole with a sole body and with a reinforcement layer made of plastic which follows the course of the sole body at a distance from the edge of the sole and which forks into two lateral branches against the forefoot area.
  • shoe soles In order to stabilize the lateral movement of the foot and guide it in its longitudinal movement, shoe soles are known (EP 1 100 349 B1 ), in which a reinforcement layer made of plastic is provided, which has a closed ring section in the heel area and two lateral branches extending from the ring section and essentially following the edge of the sole against the forefoot area, so that the ring section surrounding the heel has the foot in the heel area during ground contact laterally stabilized and the side branches provide a longitudinal guide for the rolling foot. With such sole reinforcements, the foot loads occurring during running can be taken into account in particular.
  • the invention is therefore based on the object of providing a shoe sole for a diabetic shoe which avoids local pressure points and limits the average peak load on the foot per step, without having to do without a good footrest.
  • the invention achieves the object in that the reinforcement layer having an open honeycomb structure is embedded in the sole body made of an elastomeric material and that the elastomeric material of the sole body penetrates the reinforcement layer through the open honeycomb structure.
  • the elastomeric material of the sole body initially represents a prerequisite for a largely flat contact of the shoe sole with the sole of the foot, which results in a more even pressure distribution and thus the avoidance of local pressure points.
  • the reinforcement layer embedded in the sole body hardly affects this effect of the sole body, because the elastomeric material of the sole body extends through the open cells of the honeycomb structure of the reinforcement layer and can therefore develop its effect in the direction of pressure essentially over the entire surface of the sole, without affecting the supporting action of the reinforcement layer to have to do without.
  • the honeycomb structure of the reinforcement insert which is penetrated by the material of the sole body, requires a composite body which has an overall effect which goes beyond the sum of the individual effects of the sole body and the reinforcement insert, and which enables the shoe sole to be adapted well to the requirements to be taken into account in connection with diabetic foot syndromes, and without the need for individual sole production.
  • the special shape of the reinforcement insert supports the foot in less pressure-sensitive sole areas and avoids support effects in more pressure-sensitive areas Areas so that not only the average pressure load over time but also the average peak load on the soles of the feet is limited.
  • the cross-sectional shape of the cells of the honeycomb structure does not need to be hexagonal, but can also have a different polygonal shape or be circular or oval.
  • the design of the shoe must not impair this effect.
  • a shoe is recommended in which the shoe sole according to the invention, which comprises a shoe upper with a raised edge, is glued to an insole connected to the shoe upper by means of a strobing seam.
  • the connection of the insole to the shoe upper by means of a strobing seam allows the production of particularly adaptable shoes with high wearing comfort.
  • the shoe sole according to the invention has a sole body 1 made of an elastomer, in which a reinforcing layer 2 is embedded.
  • This reinforcement layer 2 made of plastic bifurcates into two lateral branches 3, which extend towards the forefoot area and essentially follow the edge of the sole at a distance, as is the case with Fig. 2 can be removed.
  • This reinforcement layer 2 is provided with a continuous, open honeycomb structure 4, so that the elastomeric material of the sole body 1 penetrates the open honeycomb cells.
  • the sole body 1 thus forms a composite body with the reinforcement layer 2, which on the one hand ensures a flat contact with the sole of the foot of a shoe user and on the other hand exerts a corresponding support effect on the foot.
  • the reinforcement layer 2 can be used to even out the foot load that occurs during the sequence of steps while avoiding high local loads, so that pressure points that can lead to foot syndromes are largely avoided, especially since the average peak load when the shoe sole rolls off due to walking is limited.
  • These properties of the composite body made of the sole body 1 and the reinforcement layer 2 make the shoe sole particularly suitable for diabetics whose sensitivity to pain can be considerably reduced due to diabetic neuropathy.
  • a shoe such as that in the Fig. 1 is shown.
  • This shoe is distinguished by the connection of the shoe upper 5 to the insole 6 by means of a strobe seam 7, the shoe sole 1 with a raised edge 8 encompassing the shoe upper 5 on the outside and being glued to the insole 6 and the shoe upper 5.
  • a footbed insert 10 can be provided on the insole 6 in a conventional manner, optionally with the interposition of a soft foam part 9.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Description

Die Erfindung bezieht sich auf eine Schuhsohle mit einem Sohlenkörper und mit einer dem Verlauf des Sohlenkörpers mit Abstand vom Sohlenrand folgenden Verstärkungslage aus Kunststoff, die sich gegen den Vorfußbereich in zwei seitliche Äste gabelt.The invention relates to a shoe sole with a sole body and with a reinforcement layer made of plastic which follows the course of the sole body at a distance from the edge of the sole and which forks into two lateral branches against the forefoot area.

Um die seitliche Bewegung des Fußes zu stabilisieren und ihn in seiner Längsbewegung zu führen, sind Schuhsohlen bekannt ( EP 1 100 349 B1 ), bei denen eine Verstärkungslage aus Kunststoff vorgesehen wird, die im Fersenbereich einen geschlossenen Ringabschnitt und zwei seitliche vom Ringabschnitt ausgehende, im Wesentlichen dem Randverlauf der Sohle gegen den Vorfußbereich folgende Äste aufweist, sodass der die Ferse umgebende Ringabschnitt den Fuß im Fersenbereich während des Bodenkontakts seitlich stabilisiert und die seitlichen Äste eine Längsführung für den abrollenden Fuß ergeben. Mit solchen Sohlenverstärkungen können insbesondere die beim Laufen auftretenden Fußbelastungen berücksichtigt werden.In order to stabilize the lateral movement of the foot and guide it in its longitudinal movement, shoe soles are known ( EP 1 100 349 B1 ), in which a reinforcement layer made of plastic is provided, which has a closed ring section in the heel area and two lateral branches extending from the ring section and essentially following the edge of the sole against the forefoot area, so that the ring section surrounding the heel has the foot in the heel area during ground contact laterally stabilized and the side branches provide a longitudinal guide for the rolling foot. With such sole reinforcements, the foot loads occurring during running can be taken into account in particular.

Zur Dämpfung von Stoßbelastungen und zur Energiespeicherung ist es bei Sportschuhen außerdem bekannt ( US 5 084 987 A ), die Schuhsohle im Fersen und im Mittelfußbereich mit einer geschlossenen Wabenstruktur zu versehen. Die geschlossenen Wabenzellen bilden ein Luftkissen, das die Dämpfungs- und Energiespeicheraufgaben übernimmt.It is also known in sports shoes for cushioning shock loads and for energy storage ( US 5,084,987 A. ), the shoe sole in the heels and in the midfoot area with a closed honeycomb structure. The closed honeycomb cells form an air cushion that takes on the damping and energy storage tasks.

Ferner ist aus der WO 2015/145329 A1 eine Einlage in einer Schuhsohle bekannt, die der Haltungskontrolle des Fußes dient.Furthermore, from the WO 2015/145329 A1 an insert in a shoe sole is known, which serves to control the posture of the foot.

Weitere Ausführungsformen sind aus der US 2012180343 A1 , der US 2013142984 A1 und der DE 8901235 U1 bekannt.Further embodiments are known from the US 2012180343 A1 , the US 2013142984 A1 and the DE 8901235 U1 known.

Die bei solchen Sportschuhen bekannten Maßnahmen können jedoch im Allgemeinen nicht den Anforderungen entsprechen, die sich im Zusammenhang mit Schuhen für Diabetiker ergeben. Diabetische Neuropathie kann zu Fußsyndromen führen, die wegen der verminderten Schmerzempfindlichkeit solcher Patienten häufig zu spät wahrgenommen werden. Schuhe für Diabetiker sollen daher örtliche Überlastungen des Fußes vermeiden und die durchschnittliche Spitzenbelastung während eines Schritts beschränken, um dadurch möglichen Ursachen für Fußsyndrome vorzubeugen.However, the measures known for such sports shoes generally cannot meet the requirements that arise in connection with shoes for diabetics. Diabetic neuropathy can lead to foot syndromes, which are often perceived too late due to the reduced sensitivity to pain of such patients. Shoes for diabetics should therefore avoid local overloading of the foot and limit the average peak load during a step in order to prevent possible causes of foot syndromes.

Der Erfindung liegt somit die Aufgabe zugrunde, eine Schuhsole für einen Diabetikerschuh zu schaffen, die örtliche Druckstellen vermeidet und die durchschnittliche Spitzenbelastung des Fußes je Schritt beschränkt, ohne auf eine gute Fußstütze verzichten zu müssen.The invention is therefore based on the object of providing a shoe sole for a diabetic shoe which avoids local pressure points and limits the average peak load on the foot per step, without having to do without a good footrest.

Ausgehend von einer Schuhsohle der eingangs geschilderten Art löst die Erfindung die gestellte Aufgabe dadurch, dass die eine offene Wabenstruktur aufweisende Verstärkungslage in den Sohlenkörper aus einem elastomeren Werkstoff eingebettet ist und dass der elastomere Werkstoff des Sohlenkörpers die Verstärkungslage durch die offene Wabenstruktur hindurch durchsetzt.Starting from a shoe sole of the type described at the outset, the invention achieves the object in that the reinforcement layer having an open honeycomb structure is embedded in the sole body made of an elastomeric material and that the elastomeric material of the sole body penetrates the reinforcement layer through the open honeycomb structure.

Der elastomere Werkstoff des Sohlenkörpers stellt zunächst eine Voraussetzung für ein weitgehend flächiges Anliegen der Schuhsohle an der Fußsohle dar, was eine gleichmäßigere Druckverteilung und damit die Vermeidung von örtlichen Druckstellen mit sich bringt. Die in den Sohlenkörper eingebettete Verstärkungslage beeinträchtigt diese Wirkung des Sohlenkörpers kaum, weil sich der elastomere Werkstoff des Sohlenkörpers durch die offenen Zellen der Wabenstruktur der Verstärkungslage erstreckt und somit in Druckrichtung im Wesentlichen über die gesamte Sohlenfläche seine Wirkung entfalten kann, ohne auf die Stützwirkung der Verstärkungslage verzichten zu müssen. Die vom Werkstoff des Sohlenkörpers durchdrungene Wabenstruktur der Verstärkungseinlage bedingt einen Verbundkörper, der eine über die Summe der Einzelwirkungen des Sohlenkörpers und der Verstärkungseinlage hinausgehende Gesamtwirkung mit sich bringt, die eine gute Anpassung der Schuhsohle an die in Verbindung mit diabetischen Fußsyndromen zu berücksichtigenden Anforderungen ermöglicht, und zwar ohne Notwendigkeit einer individuellen Sohlenfertigung. Die besondere Form der Verstärkungseinlage unterstützt den Fuß in weniger druckempfindlichen Sohlenbereichen und vermeidet Stützwirkungen in druckempfindlicheren Bereichen, sodass nicht nur die mittlere Druckbelastung über die Zeit sondern auch die durchschnittliche Spitzenbelastung der Fußsohlen beschränkt wird. Die Querschnittsform der Zellen der Wabenstruktur braucht dabei nicht sechseckig zu sein, sondern kann auch eine andere polygone Form aufweisen oder kreisförmig oder oval ausfallen.The elastomeric material of the sole body initially represents a prerequisite for a largely flat contact of the shoe sole with the sole of the foot, which results in a more even pressure distribution and thus the avoidance of local pressure points. The reinforcement layer embedded in the sole body hardly affects this effect of the sole body, because the elastomeric material of the sole body extends through the open cells of the honeycomb structure of the reinforcement layer and can therefore develop its effect in the direction of pressure essentially over the entire surface of the sole, without affecting the supporting action of the reinforcement layer to have to do without. The honeycomb structure of the reinforcement insert, which is penetrated by the material of the sole body, requires a composite body which has an overall effect which goes beyond the sum of the individual effects of the sole body and the reinforcement insert, and which enables the shoe sole to be adapted well to the requirements to be taken into account in connection with diabetic foot syndromes, and without the need for individual sole production. The special shape of the reinforcement insert supports the foot in less pressure-sensitive sole areas and avoids support effects in more pressure-sensitive areas Areas so that not only the average pressure load over time but also the average peak load on the soles of the feet is limited. The cross-sectional shape of the cells of the honeycomb structure does not need to be hexagonal, but can also have a different polygonal shape or be circular or oval.

Damit die besondere Wirkung der Schuhsohle in einem Schuh für Diabetiker voll genützt werden kann, darf die Machart des Schuhs diese Wirkung nicht beeinträchtigen. Aus diesem Grunde empfiehlt sich ein Schuh, bei dem die mit einem hochgezogenen Rand einen Schuhschaft umfassende, erfindungsgemäße Schuhsohle mit einer durch eine Strobelnaht mit dem Schuhschaft verbundene Brandsohle verklebt ist. Die Verbindung der Brandsohle mit dem Schuhschaft durch eine Strobelnaht erlaubt die Herstellung besonders anpassungsfähiger Schuhe mit hohem Tragekomfort.So that the special effect of the sole of a shoe in a shoe can be fully used for diabetics, the design of the shoe must not impair this effect. For this reason, a shoe is recommended in which the shoe sole according to the invention, which comprises a shoe upper with a raised edge, is glued to an insole connected to the shoe upper by means of a strobing seam. The connection of the insole to the shoe upper by means of a strobing seam allows the production of particularly adaptable shoes with high wearing comfort.

In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt. Es zeigen

Fig. 1
einen Schuh mit einer erfindungsgemäßen Schuhsohle in einem schematischen Längsschnitt und
Fig. 2
eine Draufsicht auf eine Verstärkungseinlage einer erfindungsgemäßen Schuhsohle.
The subject matter of the invention is shown in the drawing, for example. Show it
Fig. 1
a shoe with a shoe sole according to the invention in a schematic longitudinal section and
Fig. 2
a plan view of a reinforcing insert of a shoe sole according to the invention.

Die erfindungsgemäße Schuhsohle weist einen Sohlenkörper 1 aus einem Elastomer auf, in den eine Verstärkungslage 2 eingebettet ist. Diese Verstärkungslage 2 aus Kunststoff gabelt sich in zwei seitliche Äste 3, die sich gegen den Vorfußbereich hin erstrecken und im Wesentlichen dem Sohlenrand mit Abstand folgen, wie dies der Fig. 2 entnommen werden kann. Diese Verstärkungslage 2 ist mit einer durchgehenden, offenen Wabenstruktur 4 versehen, sodass der elastomere Werkstoff des Sohlenkörpers 1 die offenen Wabenzellen durchsetzt. Der Sohlenkörper 1 bildet somit mit der Verstärkungslage 2 einen Verbundkörper, der einerseits eine flächige Anlage an der Fußsohle eines Schuhbenützers sicherstellt und anderseits eine entsprechende Stützwirkung auf den Fuß ausübt. Aufgrund der Formung und Strukturierung der Verstärkungslage 2 kann die während der Schrittfolge auftretende Fußbelastung unter Vermeidung von hohen örtlichen Belastungen vergleichmäßigt werden, sodass Druckstellen, die zu Fußsyndromen führen können, weitgehend vermieden werden, zumal auch die durchschnittliche Spitzenbelastung beim gehbedingten Abrollen der Schuhsohle beschränkt bleiben. Diese Eigenschaften des Verbundkörpers aus Sohlenkörper 1 und Verstärkungslage 2 machen die Schuhsohle besonders für Diabetiker geeignet, deren Schmerzempfindlichkeit aufgrund einer diabetischen Neuropathie erheblich herabgesetzt sein kann.The shoe sole according to the invention has a sole body 1 made of an elastomer, in which a reinforcing layer 2 is embedded. This reinforcement layer 2 made of plastic bifurcates into two lateral branches 3, which extend towards the forefoot area and essentially follow the edge of the sole at a distance, as is the case with Fig. 2 can be removed. This reinforcement layer 2 is provided with a continuous, open honeycomb structure 4, so that the elastomeric material of the sole body 1 penetrates the open honeycomb cells. The sole body 1 thus forms a composite body with the reinforcement layer 2, which on the one hand ensures a flat contact with the sole of the foot of a shoe user and on the other hand exerts a corresponding support effect on the foot. Because of the shape and The structure of the reinforcement layer 2 can be used to even out the foot load that occurs during the sequence of steps while avoiding high local loads, so that pressure points that can lead to foot syndromes are largely avoided, especially since the average peak load when the shoe sole rolls off due to walking is limited. These properties of the composite body made of the sole body 1 and the reinforcement layer 2 make the shoe sole particularly suitable for diabetics whose sensitivity to pain can be considerably reduced due to diabetic neuropathy.

Damit durch die Schuhkonstruktion die besonderen Eigenschaften der erfindungsgemäßen Schuhsohle nicht beeinträchtigt werden, empfiehlt sich ein Schuh, wie er in der Fig. 1 dargestellt ist. Dieser Schuh zeichnet sich durch die Verbindung des Schuhschafts 5 mit der Brandsohle 6 durch eine Strobelnaht 7 aus, wobei die Schuhsohle 1 mit einem hochgezogenen Rand 8 den Schuhschaft 5 außen umfasst und mit der Brandsohle 6 sowie dem Schuhschaft 5 verklebt ist. Auf der Brandsohle 6 kann in üblicher Weise gegebenenfalls unter Zwischenlage eines Weichschaumteils 9 eine Fußbetteinlage 10 vorgesehen sein.So that the special properties of the shoe sole according to the invention are not impaired by the shoe construction, a shoe such as that in the Fig. 1 is shown. This shoe is distinguished by the connection of the shoe upper 5 to the insole 6 by means of a strobe seam 7, the shoe sole 1 with a raised edge 8 encompassing the shoe upper 5 on the outside and being glued to the insole 6 and the shoe upper 5. A footbed insert 10 can be provided on the insole 6 in a conventional manner, optionally with the interposition of a soft foam part 9.

Claims (2)

  1. Shoe sole having a sole body (1) and having a reinforcing layer (2) which is made of synthetic material, follows the course of the sole body (1) with spacing from the sole edge and forks into two lateral branches (3) towards the forefoot region, characterised in that the reinforcing layer (2) comprising an open honeycomb structure (4) is embedded into the sole body (1) made of an elastomeric material, and that the elastomeric material of the sole body (1) passes through the reinforcing layer (2) via the open honeycomb structure (4).
  2. Shoe for diabetics, having a shoe sole as claimed in claim 1, characterised in that the shoe sole which, with a raised edge (8), surrounds a shoe shaft (5) is adhered to an inner sole (6) connected to the shoe shaft (5) by a Strobel stitch (7).
EP17154770.6A 2016-02-22 2017-02-06 Shoe sole Active EP3207815B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50121/2016A AT517607B1 (en) 2016-02-22 2016-02-22 sole

Publications (2)

Publication Number Publication Date
EP3207815A1 EP3207815A1 (en) 2017-08-23
EP3207815B1 true EP3207815B1 (en) 2020-01-01

Family

ID=57965819

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17154770.6A Active EP3207815B1 (en) 2016-02-22 2017-02-06 Shoe sole

Country Status (2)

Country Link
EP (1) EP3207815B1 (en)
AT (1) AT517607B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113040463B (en) * 2019-12-27 2023-01-17 株式会社爱世克私 Sole and shoe

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8901235U1 (en) * 1989-02-03 1990-06-07 Puma Ag Rudolf Dassler Sport, 91074 Herzogenaurach Shoe sole for sports shoes
KR100926192B1 (en) * 2009-03-18 2009-11-09 류정현 Triplex Walking and Walking Correction Sole
US20130142984A1 (en) * 2009-09-11 2013-06-06 Chun-Fu Kuo Soft cushion structure
US8713819B2 (en) * 2011-01-19 2014-05-06 Nike, Inc. Composite sole structure
US20150040436A1 (en) * 2013-08-09 2015-02-12 Wolverine World Wide, Inc. Article of footwear
WO2015145329A1 (en) * 2014-03-24 2015-10-01 Podarte Srl Insert for postural control of the foot

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3207815A1 (en) 2017-08-23
AT517607A4 (en) 2017-03-15
AT517607B1 (en) 2017-03-15

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