EP3500126B1 - Non-slip heel tip for a shoe - Google Patents

Non-slip heel tip for a shoe Download PDF

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Publication number
EP3500126B1
EP3500126B1 EP17751099.7A EP17751099A EP3500126B1 EP 3500126 B1 EP3500126 B1 EP 3500126B1 EP 17751099 A EP17751099 A EP 17751099A EP 3500126 B1 EP3500126 B1 EP 3500126B1
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EP
European Patent Office
Prior art keywords
patch
heel
profile grooves
shoe
groove
Prior art date
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Application number
EP17751099.7A
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German (de)
French (fr)
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EP3500126A1 (en
Inventor
Horst Ziegler
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.)
Wortmann KG Internationale Schuhproduktionen
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Wortmann KG Internationale Schuhproduktionen
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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B21/00—Heels; Top-pieces or top-lifts
    • A43B21/24—Heels; Top-pieces or top-lifts 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
    • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/223—Profiled soles
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B21/00—Heels; Top-pieces or top-lifts
    • A43B21/02—Heels; Top-pieces or top-lifts characterised by the material
    • A43B21/06—Heels; Top-pieces or top-lifts characterised by the material rubber
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B21/00—Heels; Top-pieces or top-lifts
    • A43B21/02—Heels; Top-pieces or top-lifts characterised by the material
    • A43B21/20—Heels; Top-pieces or top-lifts characterised by the material plastics

Definitions

  • the present invention relates to a heel patch for a heel of a shoe, which has non-slip properties.
  • the present invention also relates to a shoe equipped with a heel point according to the invention.
  • the heel of a men's or women's shoe consists of one or more heel spots, which are optionally built up in layers to form a heel.
  • Rubber materials, plastics or leather are often used for heel marks.
  • a rubber heel is in the CH 58652 A or in the DE 9202446 U1 described. Since heel spots are subject to high wear and tear, the DE 8810342 U1 suggested that the heel is mainly coated with cemented carbide, ceramic or a cubic boron nitride (CBN). However, such a coating influences the running and sliding properties of the heel and thus the entire shoe.
  • interchangeable heel tips are known, as for example in the WO 2016/102173 A or the DE 7341931 are described.
  • the shoe soles are equipped with profiles. Profiles formed from cams, ribs, grooves or other elevations and depressions on the running surface in a wide variety of shapes and compositions are known. For example, in the DE 969 455 a profiling of the shoe sole or heel is disclosed, the grooves and / or ribs of which are arranged like a labyrinth, ie in the form of closed, adjacent curves and / or in the form of closed, adjacent families of curves with an irregular course. Thus, different profiles are known for heel patches, which are intended to give the heel a non-slip profile.
  • the CH 401 748 A describes a block heel or a sole that is composed of two layers.
  • the two layers include a nailable layer and a bottom layer.
  • a known nailable rubber mixture which does not fall below a Shore hardness of 95 ° is given as an example.
  • Anti-slip soles are also known which are profiled on the running surface, within an unprofiled sole edge, with lamellae and grooves in between.
  • the solution sees DE 20 2005 003 885 U1 suggest that in the case of the groove bottoms and / or more extensive groove bottom surfaces through the unprofiled sole edge to the outside of the sole, openings through which the water can drain extend.
  • the DE 20 2011 110 291 U1 describes a shoe with a main shoe part made of textile material and a non-slip shoe sole connected to it.
  • the shoe sole has a profiling which consists of a plurality of elevations oriented transversely to the longitudinal direction of the shoe.
  • the average width of each elevation is between 0.5 and 3.5 mm, the height of the elevations is between 0.5 and 3.5 mm.
  • the DE 74 31 162 U describes a sailor's boot which has a plurality of knobs in wave form on a sole surface of the sailor's boot.
  • the transverse knobs have a width of about 2 mm and a mutual spacing of at most 1 mm, but preferably a fraction of a millimeter.
  • the profile depth of the transverse knobs must not exceed 1 mm.
  • the U.S. 4,570,362 A describes a support surface for use in shoes and vehicle tires made of a rubber, polyvinyl chloride or similar materials.
  • a plurality of elevations running transversely to the running direction are arranged in the support surface to form a channel.
  • Each channel consists of a narrow part and a wider part.
  • the WO 2013/131206 A1 describes a non-slip sole in which several hexagonal elevations are arranged. Each hexagonal elevation consists of six triangles, the diameter of the inner circle in the hexagonal elevation being 5.5 to 6.8 mm. The height of the elevations is between 3.0 and 4.0 mm.
  • the heel is mainly responsible for the slip resistance of the shoe, as the rear area of the shoe comes into contact with the flooring during normal walking movements. When it is wet, the frictional force between the shoe and the floor covering is considerably reduced, as a film of moisture forms between the floor covering and the heel and thus prevents non-slip contact between the two media.
  • the FR 1 160 020 A describes a piece of leather for the soles or heels of shoes, the piece of leather being provided with a profile.
  • the profiling comprises profile grooves running parallel to one another, transverse to the running direction, the depressions of the profiling having a depth of at least 1 mm.
  • the DE 16 61 834 U relates to a light shoe covering with a profiled running surface, which is equipped with any profiling.
  • the profiles can have any cross-section and any desired width.
  • the distance between the profiles can be the same or different.
  • the DE 16 65 776 U relates to a shoe heel with arched or wedge-shaped deeper grooves.
  • the FR 1 365 430 A relates to a non-slip sole with flat transverse elements that extend from one edge to the other. At least some of the transverse elements are interrupted and form voids in which circular suction cups are arranged.
  • the heel patch according to the invention is divided into a front top patch facing the ball of the foot and a rear top patch arranged in the tread area and facing the heel area of a foot.
  • at least the rear cover patch should be arranged parallel to one another and running transversely to the running direction include rear tread grooves.
  • the profile grooves should have a groove depth between 0.5 and 1.25 mm and a groove width between 1.00 and 2.00 mm and be spaced apart from one another between 1.00 and 2.00 mm.
  • the surface stain hardness should be between 85 and 98 ° according to Shore A and / or between 35 and 45 ° according to Shore D.
  • the surface stain hardness according to Shore A is between 90 and 95 ° and / or according to Shore D between 39 and 43 °.
  • the Shore hardness A or D can be determined using DIN 53505, for example. Hardness testers according to Shore A, C and D are available in the state of the art.
  • the area of the front cover patch and the heel-side rear cover patch is at least 375 mm 2 .
  • thermoplastic polyurethane TPU
  • thermoplastic plastics TR
  • polyvinyl chloride PVC
  • rubber or rubber are suitable for achieving the top stain hardness according to the invention according to Shore A and / or Shore D.
  • a thermoplastic polyurethane (TPU) is preferably used for the outwardly facing heel, preferably to form the rear cover patch.
  • the rear cover patch has rear profile grooves arranged parallel to one another and running transversely to the running direction in order to absorb a film of moisture (e.g. due to moisture) that occurs between the floor covering and the cover patch.
  • the rear cover patch area of the heel patch according to the invention is therefore not larger than 30 mm, preferably not larger than 20 mm.
  • the arrangement of the profile grooves according to the invention means that the film of moisture is absorbed by the floor covering at the rear edge of the groove and prevents "floating". The moisture is drained off via the grooved channels so that the film of moisture is prevented or at least reduced. In a preferred variant it is provided that the profile grooves break through the top spot edge. This has the advantage that the moisture under the stain can be diverted to the outside. Alternatively, the profile grooves can end in front of the cover patch edge within the cover patch.
  • a groove depth of 0.50 to 1.25 mm, a groove width of 1.00 to 2.00 mm and a groove spacing of 1.00 to 2.00 mm have proven to be particularly advantageous for the anti-slip property of the heel according to the invention.
  • the thickness of the cover patch is preferably between 6 and 7 mm.
  • the rear cover patch area which is essential for the anti-slip property, is preferably between 14.5 mm and 20.00 mm long.
  • the groove profile according to the invention also extends over the entire heel point.
  • it should be sufficient that only the rear cover patch area has the groove profile according to the invention and the material properties additionally described here.
  • the profile grooves are preferably arranged in a line. In alternative design variants, however, the profile grooves can also be incorporated into the rear cover patch in corrugated or jagged fashion.
  • the profile grooves usually have a U-shaped or V-shaped cross section.
  • the front cover patch has front profile grooves whose groove width and / or groove spacing is smaller than the groove width and / or the groove spacing of the rear profile grooves of the rear cover patch.
  • the rear profile grooves have an area in the longitudinal direction between 100% and 10%, preferably between 50% and 10%, preferably between 35% and 15% of the total surface of the heel mark.
  • the anti-slip properties of the heel patch constructed according to the invention were tested in detail.
  • the starting point was a heel patch made of thermoplastic polyurethane with a top patch thickness between 6.0 and 7.0 mm, a Shore A top patch hardness of 85 to 98 ° or Shore D of 35 to 45 °, with the profile grooves of the rear top patch having a depth of between 0.50 and 1.25 mm, have a groove width between 1.00 and 2.00 mm and are spaced between 1.00 and 2.00 mm.
  • the following results were achieved:
  • the values achieved when the paragraph occurred, amounting to 0.27 ⁇ , are far above the otherwise usual values, which are in the range from 0.18 to 0.21.
  • the heel point according to the invention is therefore particularly suitable for women's shoes with a small heel, for example high heels.
  • the values determined during the implementation are average values which were determined on the basis of five successive processes. Safety shoes usually have a value of 0.28 ⁇ , so the heel point according to the invention, which is suitable for normal use shoes, comes very close to this value.
  • An essential advantage of the present invention is based on the fact that the heel point can easily be retrofitted with anti-slip properties. This would be interesting, for example, for business shoes with smooth soles or dance shoes.
  • the shoe heel patch according to the invention can be replaced inexpensively and easily if the profiling should be worn. Known methods of fastening the heel can be used here.
  • the material costs are also lower if, instead of a completely profiled outsole, only the heel with the profiling according to the invention and the material property according to the invention is to be produced.
  • Fig. 1 is shown schematically a top view of an embodiment of the heel 1 according to the invention.
  • the heel patch 1 according to the invention is divided into a front top patch 2 and a rear top patch 3.
  • the rear top patch 3 makes up between 35 and 15% of the total top surface 2, 3 of the heel patch 1.
  • the rear cover patch 3 comprises rear profile grooves 4 running transversely to the running direction, which are linearly arranged and parallel to one another.
  • the groove depth is between 0.50 and 1.25 mm and the groove width between 1.00 and 2.00 mm.
  • the distance between the profile grooves 4 is between 1.00 and 2.00 mm (not shown).
  • a groove spacing of 1.5 mm and a groove depth of 0.75 mm is preferred, the rear cover patch area being 14.5 mm.
  • the front profile grooves 5 of the front cover patch 2 are preferably 0.5 mm apart.
  • the entire cover patch is preferably between 6.0 and 7.0 mm thick. It can also be clearly seen that the front profile grooves 5 of the front cover patch 2 have a smaller groove width and / or a smaller groove spacing than the groove width and / or the groove spacing of the rear profile groove 4. In the variant shown, this is 0.5 mm for the front tread grooves 5.
  • the cover spot hardness of the rear cover spot 3 Shore A is between 85 and 98 ° and / or Shore D is between 35 and 45 °.
  • a thermoplastic polyurethane (TPU) with such a material hardness is preferably used for the heel 1.
  • FIG. 2 further possible profile designs of the rear cover patch 3 are shown.
  • the rear profile grooves 4 running transversely to the running direction can be corrugated ( Figure 2A ), jagged ( Figure 2B ) or radial ( Figure 2C ) run at different angles across the direction of travel.
  • the arrangement of the grooves means that the film of moisture (moisture) is absorbed by the floor covering at the rear groove edges and the moisture is removed. This prevents the film of moisture between the heel and the floor covering.
  • the profile grooves 4 preferably break through the edge of the cover stain, so that the moisture under the stain can be diverted to the outside.
  • the value of 0.27 ⁇ achieved according to the invention is far above the values observed in conventional street shoes, which are between 0.18 and 0.21 ⁇ , and slightly below the value of 0.28 ⁇ required for safety shoes.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Description

Technisches Gebiet:Technical area:

Die vorliegende Erfindung betrifft einen Absatzfleck für einen Absatz eines Schuhs, der rutschfeste Eigenschaften aufweist. Die vorliegende Erfindung betrifft ferner einen mit einem erfindungsgemäßen Absatzfleck ausgerüsteten Schuh.The present invention relates to a heel patch for a heel of a shoe, which has non-slip properties. The present invention also relates to a shoe equipped with a heel point according to the invention.

Stand der Technik:State of the art:

Der Absatz eines Herren- oder Damenschuhs besteht aus einem oder mehreren Absatzflecken, die gegebenenfalls schichtweise zu einem Absatz aufgebaut werden. Häufig kommen bei Absatzflecken Kautschuk-Materialien, Kunststoffe oder Leder zum Einsatz. Ein Absatzfleck aus Gummi ist beispielsweise in der CH 58652 A oder in der DE 9202446 U1 beschrieben. Da Absatzflecken einem hohen Verschleiß ausgesetzt sind, wird in der DE 8810342 U1 vorgeschlagen, dass der Absatzfleck hauptsächlich mit Sinter-Hartmetall, Keramik oder einem kubischen Bornitrid (CBN) beschichtet ist. Eine solche Beschichtung beeinflusst allerdings die Lauf- und Rutscheigenschaften des Absatzflecks und somit des gesamten Schuhs. Daneben sind auch austauschbare Absatzflecken bekannt, wie sie beispielsweise in der WO 2016/102173 A oder der DE 7341931 beschrieben sind.The heel of a men's or women's shoe consists of one or more heel spots, which are optionally built up in layers to form a heel. Rubber materials, plastics or leather are often used for heel marks. For example, a rubber heel is in the CH 58652 A or in the DE 9202446 U1 described. Since heel spots are subject to high wear and tear, the DE 8810342 U1 suggested that the heel is mainly coated with cemented carbide, ceramic or a cubic boron nitride (CBN). However, such a coating influences the running and sliding properties of the heel and thus the entire shoe. In addition, interchangeable heel tips are known, as for example in the WO 2016/102173 A or the DE 7341931 are described.

Eine andere Eigenschaft, die von Schuhen erwartet wird, ist die Griffigkeit der Sohle oder des Absatzes zum Boden. Schuhe sollen nicht über den Boden rutschen oder gleiten. Hierzu werden die Schuhsohlen mit Profilen ausgestattet. Bekannt sind dabei Profilierungen geformt aus Nocken, Rippen, Rillen oder sonstigen Erhöhungen und Vertiefungen an der Lauffläche in verschiedensten Formen und Zusammensetzungen. So wird z.B. in der DE 969 455 eine Profilierung der Schuhsohle oder des Absatzes offenbart, deren Rillen und/oder Rippen labyrinthähnlich, d.h. in Form von geschlossenen, nebeneinanderliegenden Kurvenzügen und/oder in Form von geschlossenen, nebeneinanderliegenden Kurvenscharen mit unregelmäßigem Verlauf angeordnet sind. Somit sind unterschiedliche Profilierungen bei Absatzflecken bekannt, die dem Absatz ein rutschfestes Profil verleihen sollen. Deren Wirksamkeit ist jedoch, je nach Sohlenmaterial und Schuhart, nicht immer zufriedenstellend. Die CH 401 748 A beschreibt einen Blockabsatz oder eine Sohle, die aus zwei Schichten zusammengesetzt ist. Die zwei Schichten umfassen eine nagelbare Schicht und eine untere Schicht. Eine bekannte nagelbare Gummimischung, die eine Shore-Härte von 95° nicht unterschreitet, ist beispielhaft angegeben.Another property that is expected of shoes is the grip of the sole or heel to the ground. Shoes should not slide or slide across the floor. For this purpose, the shoe soles are equipped with profiles. Profiles formed from cams, ribs, grooves or other elevations and depressions on the running surface in a wide variety of shapes and compositions are known. For example, in the DE 969 455 a profiling of the shoe sole or heel is disclosed, the grooves and / or ribs of which are arranged like a labyrinth, ie in the form of closed, adjacent curves and / or in the form of closed, adjacent families of curves with an irregular course. Thus, different profiles are known for heel patches, which are intended to give the heel a non-slip profile. However, their effectiveness is not always satisfactory, depending on the sole material and type of shoe. The CH 401 748 A describes a block heel or a sole that is composed of two layers. The two layers include a nailable layer and a bottom layer. A known nailable rubber mixture which does not fall below a Shore hardness of 95 ° is given as an example.

Bekannt sind auch Anti-Rutschsohlen, die an der Lauffläche, innerhalb eines unprofilierten Sohlenrandes, mit Lamellen und dazwischen befindlichen Nuten profiliert sind. Allerdings stellt es sich als nachteilig heraus, dass sich bei großer Nässe Wasser in den Nuten ansammelt und nicht abfließen kann. Dieser Wasserstau führt dazu, dass die Anti-Rutschwirkung vermindert oder sogar aufgehoben wird. Als Lösung sieht die DE 20 2005 003 885 U1 vor, dass sich bei der von den Nutböden und/oder ausgedehnteren Nutbodenflächen durch den unprofilierten Sohlenrand hindurch zur Außenseite der Sohle Durchbrüche erstrecken, durch welche das Wasser abfließen kann.Anti-slip soles are also known which are profiled on the running surface, within an unprofiled sole edge, with lamellae and grooves in between. However, it turns out to be disadvantageous that when it is very wet, water collects in the grooves and cannot flow away. This accumulation of water leads to the anti-slip effect being reduced or even canceled. The solution sees DE 20 2005 003 885 U1 suggest that in the case of the groove bottoms and / or more extensive groove bottom surfaces through the unprofiled sole edge to the outside of the sole, openings through which the water can drain extend.

Bei Laufschuhen oder Wanderschuhen wird die Rutschfestigkeit häufig dadurch erreicht, dass eine möglichst große Sohlenfläche Kontakt mit dem Untergrund hat. Gleichzeitig spielen auch die Profilierung und die Materialeigenschaft eine wichtige Rolle.In the case of running shoes or hiking shoes, the slip resistance is often achieved by having the largest possible sole surface in contact with the ground. At the same time, the profile and the material properties also play an important role.

Die DE 20 2011 110 291 U1 beschreibt einen Schuh mit einem aus textilem Material bestehenden Schuhhauptteil und einer mit diesem verbundenen rutschfesten Schuhsohle. Die Schuhsohle weist eine Profilierung auf, die aus einer Vielzahl von quer zur Schuhlängsrichtung ausgerichteten Erhebungen besteht. Die durchschnittliche Breite jeder Erhebung beträgt zwischen 0,5 und 3,5 mm, die Höhe der Erhebungen beträgt zwischen 0,5 und 3,5 mm.The DE 20 2011 110 291 U1 describes a shoe with a main shoe part made of textile material and a non-slip shoe sole connected to it. The shoe sole has a profiling which consists of a plurality of elevations oriented transversely to the longitudinal direction of the shoe. The average width of each elevation is between 0.5 and 3.5 mm, the height of the elevations is between 0.5 and 3.5 mm.

Die DE 74 31 162 U beschreibt einen Seglerstiefel, der mehrere Noppen in Wellenform auf einer Sohlenfläche des Seglerstiefels aufweist. Die Quernoppen weisen eine Breite von etwa 2 mm und einen gegenseitigen Abstand von höchstens 1 mm, vorzugweise jedoch den Bruchteil eines Millimeters auf. Die Profiltiefe der Quernoppen braucht höchstens 1 mm zu betragen.The DE 74 31 162 U describes a sailor's boot which has a plurality of knobs in wave form on a sole surface of the sailor's boot. The transverse knobs have a width of about 2 mm and a mutual spacing of at most 1 mm, but preferably a fraction of a millimeter. The profile depth of the transverse knobs must not exceed 1 mm.

Die US 4 570 362 A beschreibt eine Stützfläche zur Anwendung in Schuhen und Fahrzeugreifen, die aus einem Gummi, Polyvinylchlorid oder ähnlichen Materialien hergestellt ist. In der Stützfläche sind mehre quer zur Laufrichtung verlaufende Erhebungen zur Bildung eines Kanals angeordnet. Jeder Kanal besteht aus einem schmalen Teil und einem breiteren Teil.The U.S. 4,570,362 A describes a support surface for use in shoes and vehicle tires made of a rubber, polyvinyl chloride or similar materials. A plurality of elevations running transversely to the running direction are arranged in the support surface to form a channel. Each channel consists of a narrow part and a wider part.

Die WO 2013/131206 A1 beschreibt eine rutschfeste Sohle, in der mehrere sechseckige Erhebungen angeordnet sind. Jede sechseckige Erhebung besteht aus sechs Dreiecken, wobei der Durchmesser des Innenkreises in der sechseckigen Erhebung 5,5 bis 6,8 mm beträgt. Die Höhe der Erhebungen beträgt zwischen 3,0 und 4,0 mm.The WO 2013/131206 A1 describes a non-slip sole in which several hexagonal elevations are arranged. Each hexagonal elevation consists of six triangles, the diameter of the inner circle in the hexagonal elevation being 5.5 to 6.8 mm. The height of the elevations is between 3.0 and 4.0 mm.

Bei vielen Schuharten, z.B. Straßen- oder Tanzschuhen, ist der Absatzfleck hauptverantwortlich für die Rutschfestigkeit des Schuhs, da bei einer normalen Gehbewegung der hintere Bereich des Schuhs Kontakt mit dem Bodenbelag hat. Bei Nässe ist die Reibungskraft zwischen Schuh und Bodenbelag erheblich reduziert, da sich ein Feuchtigkeitsfilm zwischen Bodenbelag und Absatzfleck ausbildet und damit einen rutschsicheren Kontakt zwischen den beiden Medien verhindert.In many types of shoes, e.g. street shoes or dance shoes, the heel is mainly responsible for the slip resistance of the shoe, as the rear area of the shoe comes into contact with the flooring during normal walking movements. When it is wet, the frictional force between the shoe and the floor covering is considerably reduced, as a film of moisture forms between the floor covering and the heel and thus prevents non-slip contact between the two media.

Die FR 1 160 020 A beschreibt ein Lederstück für Sohlen oder Absätze von Schuhen, wobei das Lederstück mit einer Profilierung versehen ist. Die Profilierung umfasst parallel zueinander, quer zur Laufrichtung verlaufende Profilrillen, wobei die Vertiefungen der Profilierung eine Tiefe von mindestens 1 mm aufweisen.The FR 1 160 020 A describes a piece of leather for the soles or heels of shoes, the piece of leather being provided with a profile. The profiling comprises profile grooves running parallel to one another, transverse to the running direction, the depressions of the profiling having a depth of at least 1 mm.

Die DE 16 61 834 U betrifft ein leichter Schuhbelag mit profilierter Lauffläche, wobei diese mit einer beliebigen Profilierung ausgestattet ist. Die Profile können jeden beliebigen Querschnitt und jede beliebige Breite aufweisen. Der Abstand der Profile kann gleich oder verschieden sein.The DE 16 61 834 U relates to a light shoe covering with a profiled running surface, which is equipped with any profiling. The profiles can have any cross-section and any desired width. The distance between the profiles can be the same or different.

Die DE 16 65 776 U betrifft einen Schuhabsatz mit gewölbten oder keilförmigen tieferen Rillen.The DE 16 65 776 U relates to a shoe heel with arched or wedge-shaped deeper grooves.

Die FR 1 365 430 A betrifft eine rutschfeste Sohle mit flachen Querlementen, die sich von einer Kante zu der anderen erstrecken. Zumindest einige der Querelemente sind unterbrochen und bilden Leerstellen aus, in denen kreisförmige Saugnäpfe angeordnet sind.The FR 1 365 430 A relates to a non-slip sole with flat transverse elements that extend from one edge to the other. At least some of the transverse elements are interrupted and form voids in which circular suction cups are arranged.

Darstellung der Erfindung:Presentation of the invention:

Vor diesem Hintergrund ist es Aufgabe der vorliegenden Erfindung, einen Absatzfleck für einen Absatz eines Schuhs bereitzustellen, der mit verbesserten Antirutsch-Eigenschaften ausgestattet ist.Against this background, it is the object of the present invention to provide a heel patch for a heel of a shoe which is provided with improved anti-slip properties.

Diese Aufgabe wird gelöst durch einen Absatzfleck für einen Absatz eines Schuhs mit den Merkmalen des Anspruchs 1.This object is achieved by a heel point for a heel of a shoe with the features of claim 1.

Bevorzugte Ausführungsformen finden sich in den Unteransprüchen wieder.Preferred embodiments can be found in the subclaims.

Der erfindungsgemäße Absatzfleck ist aufgeteilt in einen zum Fußballen weisenden vorderen Deckfleck und einen im Auftrittsbereich angeordneten, dem Fersenbereich eines Fußes zugewandten hinteren Deckfleck. Um die verbesserte Bodenhaftung zu erzielen, soll zumindest der hintere Deckfleck parallel zueinander angeordnete, quer zur Laufrichtung verlaufende hintere Profilrillen umfassen. Die Profilrillen sollen erfindungsgemäß eine Rillentiefe zwischen 0,5 und 1,25 mm und eine Rillenbreite zwischen 1,00 und 2,00 mm aufweisen und zwischen 1,00 und 2,00 mm voneinander beabstandet sein. Die Deckfleckhärte soll nach Shore A zwischen 85 und 98° und/oder nach Shore D zwischen 35 und 45° betragen. In einer bevorzugten Variante beträgt die Deckfleckhärte nach Shore A zwischen 90 und 95° und/oder nach Shore D zwischen 39 und 43°. Die Shore-Härte A oder D kann beispielsweise anhand der DIN 53505 ermittelt werden. Hierfür stehen im Stand der Technik Härteprüfgeräte nach Shore A, C und D zur Verfügung.The heel patch according to the invention is divided into a front top patch facing the ball of the foot and a rear top patch arranged in the tread area and facing the heel area of a foot. In order to achieve improved traction, at least the rear cover patch should be arranged parallel to one another and running transversely to the running direction include rear tread grooves. According to the invention, the profile grooves should have a groove depth between 0.5 and 1.25 mm and a groove width between 1.00 and 2.00 mm and be spaced apart from one another between 1.00 and 2.00 mm. The surface stain hardness should be between 85 and 98 ° according to Shore A and / or between 35 and 45 ° according to Shore D. In a preferred variant, the surface stain hardness according to Shore A is between 90 and 95 ° and / or according to Shore D between 39 and 43 °. The Shore hardness A or D can be determined using DIN 53505, for example. Hardness testers according to Shore A, C and D are available in the state of the art.

Bei üblichen Schuhen beträgt die Fläche des vorderen Deckflecks und des fersenseitigen hinteren Deckflecks wenigstens 375 mm2.In conventional shoes, the area of the front cover patch and the heel-side rear cover patch is at least 375 mm 2 .

Zum Erreichen der erfindungsgemäßen Deckfleckhärten gemäß Shore A und/oder Shore D sind beispielsweise Materialien wie Polyurethan (PU), thermoplastisches Polyurethan (TPU), thermoplastische Kunststoffe (TR), Polyvinylchlorid (PVC), Kautschuk oder Gummi geeignet. Vorzugsweise kommt ein thermoplastisches Polyurethan (TPU) für den nach außen gewandten Absatzfleck, vorzugsweise zur Ausbildung des hinteren Deckflecks, zum Einsatz. Diese Materialien haben sich bezüglich der zu erreichenden Shore-Härte und damit zum Erreichen der gewünschten Antirutschwirkung als vorteilhaft herausgestellt.For example, materials such as polyurethane (PU), thermoplastic polyurethane (TPU), thermoplastic plastics (TR), polyvinyl chloride (PVC), rubber or rubber are suitable for achieving the top stain hardness according to the invention according to Shore A and / or Shore D. A thermoplastic polyurethane (TPU) is preferably used for the outwardly facing heel, preferably to form the rear cover patch. These materials have proven to be advantageous with regard to the Shore hardness to be achieved and thus to achieve the desired anti-slip effect.

Bei der normalen Gehbewegung hat zuerst der hintere Deckfleckbereich des Absatzflecks Kontakt mit dem Bodenbelag. Daher ist erfindungsgemäß vorgesehen, dass zumindest der hintere Deckfleck parallel zueinander angeordnete, quer zur Laufrichtung verlaufende hintere Profilrillen aufweist, um einen zwischen dem Bodenbelag und dem Deckfleck auftretenden Feuchtigkeitsfilm (z.B. bedingt durch Nässe) aufzunehmen. In einer bevorzugten Variante ist daher der hintere Deckfleckbereich des erfindungsgemäßen Absatzflecks nicht größer als 30 mm, vorzugsweise nicht größer als 20 mm.During normal walking movement, the rear deck patch area of the heel patch comes into contact with the flooring first. Therefore, according to the invention it is provided that at least the rear cover patch has rear profile grooves arranged parallel to one another and running transversely to the running direction in order to absorb a film of moisture (e.g. due to moisture) that occurs between the floor covering and the cover patch. In a preferred variant, the rear cover patch area of the heel patch according to the invention is therefore not larger than 30 mm, preferably not larger than 20 mm.

Durch die Anordnung der erfindungsgemäßen Profilrillen wird der Feuchtigkeitsfilm an den hinteren Rillenkanten vom Bodenbelag aufgenommen und ein "Aufschwimmen" verhindert. Die Nässe wird über die Rillenkanäle abgeleitet, so dass der Feuchtigkeitsfilm verhindert oder zumindest reduziert wird. In einer bevorzugten Variante ist vorgesehen, dass die Profilrillen den Deckfleckrand durchbrechen. Dies hat den Vorteil, dass die Nässe unter dem Fleck nach außen abgeleitet werden kann. Alternativ können die Profilrillen vor dem Deckfleckrand innerhalb des Deckflecks enden.The arrangement of the profile grooves according to the invention means that the film of moisture is absorbed by the floor covering at the rear edge of the groove and prevents "floating". The moisture is drained off via the grooved channels so that the film of moisture is prevented or at least reduced. In a preferred variant it is provided that the profile grooves break through the top spot edge. This has the advantage that the moisture under the stain can be diverted to the outside. Alternatively, the profile grooves can end in front of the cover patch edge within the cover patch.

Eine Rillentiefe von 0,50 bis 1,25 mm, eine Rillenbreite von 1,00 bis 2,00 mm und ein Rillenabstand von 1,00 bis 2,00 mm haben sich für die Antirutsch-Eigenschaft des erfindungsgemäßen Absatzflecks als besonders vorteilhaft erwiesen. Die Deckfleckstärke beträgt vorzugsweise zwischen 6 und 7 mm. Der für die Antirutsch-Eigenschaft wesentliche hintere Deckfleckbereich ist vorzugsweise zwischen 14,5 mm und 20,00 mm lang. In einer alternativen Variante kann auch vorgesehen sein, dass sich das erfindungsgemäße Rillenprofil auch über den gesamten Absatzfleck erstreckt. Für die Antirutsch-Eigenschaft sollte es jedoch ausreichend sein, dass lediglich der hintere Deckfleck-Bereich das erfindungsgemäße Rillenprofil und die zusätzlich hier beschriebenen Materialeigenschaften aufweist.A groove depth of 0.50 to 1.25 mm, a groove width of 1.00 to 2.00 mm and a groove spacing of 1.00 to 2.00 mm have proven to be particularly advantageous for the anti-slip property of the heel according to the invention. The thickness of the cover patch is preferably between 6 and 7 mm. The rear cover patch area, which is essential for the anti-slip property, is preferably between 14.5 mm and 20.00 mm long. In an alternative variant it can also be provided that the groove profile according to the invention also extends over the entire heel point. For the anti-slip property, however, it should be sufficient that only the rear cover patch area has the groove profile according to the invention and the material properties additionally described here.

Vorzugsweise sind die Profilrillen linienförmig angeordnet. In alternativen Ausführungsvarianten können jedoch die Profilrillen auch gewellt oder gezackt in dem hinteren Deckfleck eingearbeitet sein. Üblicherweise weisen die Profilrillen einen U-förmigen oder V-förmigen Querschnitt auf.The profile grooves are preferably arranged in a line. In alternative design variants, however, the profile grooves can also be incorporated into the rear cover patch in corrugated or jagged fashion. The profile grooves usually have a U-shaped or V-shaped cross section.

Der vordere Deckfleck weist vordere Profilrillen auf, deren Rillenbreite und/oder Rillenabstand kleiner ist als die Rillenbreite und/oder der Rillenabstand der hinteren Profilrillen des hinteren Deckflecks.The front cover patch has front profile grooves whose groove width and / or groove spacing is smaller than the groove width and / or the groove spacing of the rear profile grooves of the rear cover patch.

Gemäß einer Ausgestaltung der Erfindung weisen die hinteren Profilrillen in Längsrichtung eine Fläche zwischen 100 % bis 10 %, vorzugsweise zwischen 50 % und 10 %, bevorzugt zwischen 35 % und 15 % der Deckfleckgesamtfläche des Absatzflecks auf.According to one embodiment of the invention, the rear profile grooves have an area in the longitudinal direction between 100% and 10%, preferably between 50% and 10%, preferably between 35% and 15% of the total surface of the heel mark.

Die Antirutsch-Eigenschaften des erfindungsgemäß aufgebauten Absatzflecks wurden eingehend geprüft. Ausgangspunkt war ein Absatzfleck aus thermoplastischem Polyurethan mit einer Deckfleckstärke zwischen 6,0 und 7,0 mm, einer Shore A Deckfleckhärte von 85 bis 98° oder Shore D von 35 bis 45°, wobei die Profilrillen des hinteren Deckflecks eine Rillentiefe zwischen 0,50 und 1,25 mm, eine Rillenbreite zwischen 1,00 und 2,00 mm aufweisen und zwischen 1,00 und 2,00 mm voneinander beabstandet sind. Dabei wurden folgende Ergebnisse erzielt:The anti-slip properties of the heel patch constructed according to the invention were tested in detail. The starting point was a heel patch made of thermoplastic polyurethane with a top patch thickness between 6.0 and 7.0 mm, a Shore A top patch hardness of 85 to 98 ° or Shore D of 35 to 45 °, with the profile grooves of the rear top patch having a depth of between 0.50 and 1.25 mm, have a groove width between 1.00 and 2.00 mm and are spaced between 1.00 and 2.00 mm. The following results were achieved:

Antirutsch-EigenschaftAnti-slip property DIN EN ISO 13287DIN EN ISO 13287

Parameterparameter Einheitunit ErgebnisResult Oberflächen belagSurface covering --- Eurotile 2 / NatriumlaurylsulfatEurotile 2 / Sodium Lauryl Sulphate Gerades AuftretenStraight appearance µµ 0,240.24 Auftreten des AbsatzesOccurrence of the paragraph µµ 0,270.27

AbreibewiderstandAbrasion resistance DIN EN 12770 / DIN ISO 4649DIN EN 12770 / DIN ISO 4649

Parameterparameter Einheitunit ErgebnisResult Belastungburden NN 1010 Abstanddistance mm 4040 Dichtedensity g/cm3 g / cm 3 1,201.20 VolumenverlustVolume loss mm3 mm 3 5151

Die Ergebnisse zeigen, dass die erfindungsgemäßen Antirutsch-Eigenschaften im Wesentlichen von den Profileigenschaften und der gewählten Deckfleckhärte abhängig sind. Dadurch wird ein möglicher "Aquaplaning"-Effekt zwischen Belag und Absatzfleck erheblich reduziert und ein Abgleiten oder Rutschen des Schuhs verhindert. Die erreichten Werte beim Auftreten des Absatzes in Höhe von 0,27 µ liegen weit oberhalb der ansonsten üblichen Werte, welche im Bereich von 0,18 bis 0,21 liegen. Somit eignet sich der erfindungsgemäße Absatzfleck insbesondere für Damenschuhe mit einem kleinen Absatz, beispielsweise High Heels. Die bei der Durchführung ermittelten Werte sind Durchschnittswerte, welche anhand von fünf aufeinanderfolgenden Abläufen ermittelt wurden. Sicherheitsschuhe haben üblicherweise einen Wert von 0,28 µ, somit kommt der erfindungsgemäße Absatzfleck, welcher sich für normale Gebrauchsschuhe eignet, diesem Wert sehr nahe.The results show that the anti-slip properties according to the invention are essentially dependent on the profile properties and the selected cover stain hardness. This considerably reduces a possible "aquaplaning" effect between the base and the heel and prevents the shoe from slipping or slipping. The values achieved when the paragraph occurred, amounting to 0.27 µ, are far above the otherwise usual values, which are in the range from 0.18 to 0.21. The heel point according to the invention is therefore particularly suitable for women's shoes with a small heel, for example high heels. The values determined during the implementation are average values which were determined on the basis of five successive processes. Safety shoes usually have a value of 0.28 μ, so the heel point according to the invention, which is suitable for normal use shoes, comes very close to this value.

Ein wesentlicher Vorteil der vorliegenden Erfindung liegt darin begründet, dass der Absatzfleck mit Anti-Rutsch-Eigenschaft einfach nachgerüstet werden kann. Interessant wäre dies z.B. bei Businessschuhen mit glatter Sohle oder bei Tanzschuhen. Außerdem kann der erfindungsgemäße Schuhabsatzfleck kostengünstig und einfach ausgetauscht werden, wenn die Profilierung verschlissen sein sollte. Hier kann auf bekannte Befestigungsmethoden des Absatzflecks zurückgegriffen werden. Ferner sind auch die Materialkosten niedriger, wenn anstelle einer vollständig profilierten Laufsohle lediglich der Absatzfleck mit der erfindungsgemäßen Profilierung und der erfindungsgemäßen Materialeigenschaft hergestellt werden soll.An essential advantage of the present invention is based on the fact that the heel point can easily be retrofitted with anti-slip properties. This would be interesting, for example, for business shoes with smooth soles or dance shoes. In addition, the shoe heel patch according to the invention can be replaced inexpensively and easily if the profiling should be worn. Known methods of fastening the heel can be used here. Furthermore, the material costs are also lower if, instead of a completely profiled outsole, only the heel with the profiling according to the invention and the material property according to the invention is to be produced.

Kurze Beschreibung der Zeichnungen:Brief description of the drawings:

Die Erfindung wird in den nachfolgenden Zeichnungen näher erläutert.

  • Fig. 1 zeigt die Draufsicht und eine Ausführungsvariante des erfindungsgemäßen Absatzflecks.
  • Fig. 2 zeigt weitere mögliche Ausgestaltungen von Profildesigns des hinteren Deckflecks.
The invention is explained in more detail in the following drawings.
  • Fig. 1 shows the plan view and an embodiment of the heel according to the invention.
  • Fig. 2 shows further possible configurations of profile designs of the rear cover patch.

Wege zur Ausführung der Erfindung und gewerbliche Verwertbarkeit:Ways to carry out the invention and commercial usability:

In Fig. 1 ist schematisch eine Draufsicht einer Ausführungsvariante des erfindungsgemäßen Absatzflecks 1 gezeigt. Der erfindungsgemäße Absatzfleck 1 ist aufgeteilt in einen vorderen Deckfleck 2 und einen hinteren Deckfleck 3. Der hintere Deckfleck 3 macht zwischen 35 und 15 % der Deckfleckgesamtfläche 2, 3 des Absatzflecks 1 aus. In der gezeigten Variante umfasst der hintere Deckfleck 3 quer zur Laufrichtung verlaufende hintere Profilrillen 4, die linienförmig und parallel zueinander angeordnet sind.In Fig. 1 is shown schematically a top view of an embodiment of the heel 1 according to the invention. The heel patch 1 according to the invention is divided into a front top patch 2 and a rear top patch 3. The rear top patch 3 makes up between 35 and 15% of the total top surface 2, 3 of the heel patch 1. In the variant shown, the rear cover patch 3 comprises rear profile grooves 4 running transversely to the running direction, which are linearly arranged and parallel to one another.

In der Querschnittsdarstellung ist zu erkennen, dass die Rillentiefe zwischen 0,50 und 1,25 mm und die Rillenbreite zwischen 1,00 und 2,00 mm beträgt. Der Abstand der Profilrillen 4 beträgt zwischen 1,00 und 2,00 mm (nicht gezeigt). Bevorzugt ist ein Rillenabstand von 1,5 mm und eine Rillentiefe von 0,75 mm, wobei der hintere Deckfleckbereich 14,5 mm umfasst. Die vorderen Profilrillen 5 des vorderen Deckflecks 2 sind vorzugsweise 0,5 mm voneinander beabstandet. Der gesamte Deckfleck ist vorzugsweise zwischen 6,0 und 7,0 mm stark. Deutlich ist auch zu erkennen, dass die vorderen Profilrillen 5 des vorderen Deckflecks 2 eine geringere Rillenbreite und/oder einen kleineren Rillenabstand aufweisen als die Rillenbreite und/oder der Rillenabstand der hinteren Profilrille 4. In der gezeigten Variante sind dies 0,5 mm für die vorderen Profilrillen 5.In the cross-sectional representation it can be seen that the groove depth is between 0.50 and 1.25 mm and the groove width between 1.00 and 2.00 mm. The distance between the profile grooves 4 is between 1.00 and 2.00 mm (not shown). A groove spacing of 1.5 mm and a groove depth of 0.75 mm is preferred, the rear cover patch area being 14.5 mm. The front profile grooves 5 of the front cover patch 2 are preferably 0.5 mm apart. The entire cover patch is preferably between 6.0 and 7.0 mm thick. It can also be clearly seen that the front profile grooves 5 of the front cover patch 2 have a smaller groove width and / or a smaller groove spacing than the groove width and / or the groove spacing of the rear profile groove 4. In the variant shown, this is 0.5 mm for the front tread grooves 5.

Die Deckfleckhärte des hinteren Deckflecks 3 Shore A beträgt zwischen 85 und 98° und/oder Shore D beträgt zwischen 35 und 45°. Vorzugsweise kommt beim Absatzfleck 1 ein thermoplastisches Polyurethan (TPU) mit einer solchen Materialhärte zum Einsatz.The cover spot hardness of the rear cover spot 3 Shore A is between 85 and 98 ° and / or Shore D is between 35 and 45 °. A thermoplastic polyurethane (TPU) with such a material hardness is preferably used for the heel 1.

In Fig. 2 werden weitere mögliche Profildesigns des hinteren Deckflecks 3 gezeigt. So können die quer zur Laufrichtung verlaufenden hinteren Profilrillen 4 gewellt (Fig. 2A), gezackt (Fig. 2B) oder strahlenförmig (Fig. 2C) in unterschiedlichen Winkeln quer zur Laufrichtung verlaufen. Durch die Anordnung der Rillen wird der Feuchtigkeitsfilm (Nässe) an den hinteren Rillenkanten vom Bodenbelag aufgenommen und die Nässe abgeführt. Dadurch wird der Feuchtigkeitsfilm zwischen Absatz und Bodenbelag verhindert. Vorzugsweise durchbrechen die Profilrillen 4 den Deckfleckrand, so dass die Nässe unter dem Fleck nach außen abgeleitet werden kann.In Fig. 2 further possible profile designs of the rear cover patch 3 are shown. The rear profile grooves 4 running transversely to the running direction can be corrugated ( Figure 2A ), jagged ( Figure 2B ) or radial ( Figure 2C ) run at different angles across the direction of travel. The arrangement of the grooves means that the film of moisture (moisture) is absorbed by the floor covering at the rear groove edges and the moisture is removed. This prevents the film of moisture between the heel and the floor covering. The profile grooves 4 preferably break through the edge of the cover stain, so that the moisture under the stain can be diverted to the outside.

Der erfindungsgemäß erreichte Wert von 0,27 µ liegt weit oberhalb der bei üblichen Straßenschuhen beobachteten Werte, die zwischen 0,18 und 0,21 µ liegen, und leicht unterhalb des für Sicherheitsschuhe geforderten Wertes von 0,28 µ.The value of 0.27 μ achieved according to the invention is far above the values observed in conventional street shoes, which are between 0.18 and 0.21 μ, and slightly below the value of 0.28 μ required for safety shoes.

Claims (9)

  1. A heel patch (1) for a heel of a shoe comprising a front patch surface (2) adapted to the shape of the heel and a rear patch surface (3) arranged in the initial stepping region, wherein at least the rear patch surface (3) comprises rear profile grooves (4) that are arranged parallel to one another and extend transversely to the walking direction, wherein the profile grooves (4) have a groove depth of between 0.50 and 1.25 mm and a groove width of between 1.00 and 2.00 mm and are spaced apart from one another by between 1.00 and 2.00 mm and that the patch surface hardness is between 85 and 98° Shore A and/or between 35 and 45° Shore D, characterized in that the front patch surface (2) has front profile grooves, whose groove width and/or groove distance is smaller than the groove width and/or groove distance of the rear profile grooves (4).
  2. The heel patch (1) according to claim 1 characterized in that the surface of the front patch surface (2) and the heel-side rear patch surface (3) is at least 375 mm2.
  3. The heel patch according to claim 1 or 2 characterized in that the patch surface material is chosen from the group comprising polyurethane (PU), thermoplastic polyurethane (TPU), thermoplastic resins (TR), polyvinyl chloride (PVC), natural rubber or synthetic rubber.
  4. The heel patch (1) according to any one of claims 1 to 3 characterized in that the profile grooves (4) breach the edge of the patch surface.
  5. The heel patch (1) according to any one of claims 1 to 3 characterized in that the profile grooves (4) end within the patch surface before the edge of the patch surface.
  6. The heel patch (1) according to any one of claims 1 to 5 characterized in that the profile grooves (4) are incorporated in wavy or serrated lines in the rear patch surface (3).
  7. The heel patch (1) according to any one of claims 1 to 6 characterized in that the profile grooves (4) have a U-shaped or V-shaped cross section.
  8. The heel patch (1) according to any one of claims 1 to 7 characterized in that the rear profile grooves (4) in the longitudinal direction have an area of 100% to 10%, preferably between 50% and 10%, preferably between 35% and 15% of the total surface of the patch surface (2, 3) of the heel patch (1).
  9. A shoe, in particular men's or women's shoe, equipped with a heel patch (1) according to any one of claims 1 to 8.
EP17751099.7A 2016-08-22 2017-08-10 Non-slip heel tip for a shoe Active EP3500126B1 (en)

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DE202016104587.8U DE202016104587U1 (en) 2016-08-22 2016-08-22 Non-slip heel patch for a shoe
PCT/EP2017/070318 WO2018036833A1 (en) 2016-08-22 2017-08-10 Non-slip heel tip for a shoe

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DE (1) DE202016104587U1 (en)
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EP3500126A1 (en) 2019-06-26
RU2719141C1 (en) 2020-04-17
WO2018036833A1 (en) 2018-03-01
CN109714999A (en) 2019-05-03
DE202016104587U1 (en) 2016-10-11

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