EP0812551A2 - Security-shoe - Google Patents

Security-shoe Download PDF

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Publication number
EP0812551A2
EP0812551A2 EP97105018A EP97105018A EP0812551A2 EP 0812551 A2 EP0812551 A2 EP 0812551A2 EP 97105018 A EP97105018 A EP 97105018A EP 97105018 A EP97105018 A EP 97105018A EP 0812551 A2 EP0812551 A2 EP 0812551A2
Authority
EP
European Patent Office
Prior art keywords
sole
toe cap
shoe
rear end
toe
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.)
Withdrawn
Application number
EP97105018A
Other languages
German (de)
French (fr)
Other versions
EP0812551A3 (en
Inventor
Peter Lauer
Hubert Augustin
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP0812551A2 publication Critical patent/EP0812551A2/en
Publication of EP0812551A3 publication Critical patent/EP0812551A3/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/08—Heel stiffeners; Toe stiffeners
    • A43B23/081—Toe stiffeners
    • A43B23/082—Toe stiffeners made of metal
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/32—Footwear with health or hygienic arrangements with shock-absorbing means

Definitions

  • the invention relates to a safety shoe comprising a flexible sole (1) and a toe cap (2) made of metal attached to it.
  • Such a safety shoe is known from German utility model 7 903 438.
  • the toe cap touches the sole at a right angle. Excellent toe protection is achieved in this way, but the wearing comfort of a suitably equipped safety shoe is unsatisfactory.
  • the object of the invention is seen in further developing a safety shoe of the type mentioned at the outset in such a way that improved wearing comfort is achieved while ensuring good toe protection.
  • the toe cap touches the sole at an acute angle at its rear end.
  • the relatively deformable area of the sole thus becomes essential in the area of the ball of the foot increases, which reduces the forces required to flex the sole and distributes the diffraction over a relatively enlarged area of the sole.
  • the forces to be exerted in the process of walking to flex the sole are thereby reduced, which makes walking easier and improves the wearing comfort.
  • there is a reduction in the specific maximum load on the sole because the bending stress is distributed over a comparatively larger zone of the sole and, as a result, a significantly improved durability.
  • no impairment of the toe protection has to be accepted.
  • the forces to be absorbed by the toe cap are normally introduced diagonally downwards and forwards into the latter and transferred to the sole, which largely excludes the occurrence of a backward tilting moment. This surprising finding was not yet available.
  • the toe cap can be bounded at its rear end in at least one partial area by a convex surface. This facilitates their harmonious insertion into the forefoot of a shoe.
  • the toe cap is delimited at the rear end by a lower surface which adjoins the sole at an acute angle and by an upper surface which essentially encloses a right angle with the sole. Both surfaces can be rounded into one another and optionally also into the base of the toe cap.
  • an exemplary safety shoe is shown in a partially cut-away representation.
  • a toe cap 2 is inserted in the front part, which is inseparably connected to the sole, for example by directly molding an outsole 5 made of plastic onto a toe cap 2 or riveting or gluing the toe cap 2 to an insole 5, which in turn is connected to an outsole 5 is connected.
  • a further improvement in the fixing of the toe cap 2 in the ready-to-use shoe can be achieved by inserting the toe cap into the intermediate zone between the upper material of the shoe and its inner lining.
  • the upper material and the inner lining are connected directly to one another in the areas immediately adjacent to the toe cap, for example by mutual sewing and / or gluing.
  • the shoes are both made of a tear-resistant material and thus give the toe cap an additional improved hold.
  • a material with cushioning and thermally insulating properties is often used. It helps prevent chafing from forming in the area of the foot and increases general comfort during the day.
  • the shoe is delimited in the lower area by the outsole 5 and by a heel 6 and in the upper area by a shaft 7.
  • the shaft and the outsole can be of any design.
  • the toe cap 2 generally consists of cold-formed sheet metal, for example of a deep-drawn steel or aluminum sheet. Variants created and composed can be used without any problems.
  • the toe cap is delimited at the rear end by a lower surface 3 which contacts the insole 1 at an acute angle ⁇ and by an upper surface 4 which essentially encloses a right angle with the insole 1 in the corresponding area.
  • the outsole extends parallel to the insole in this area.
  • the acute angle ⁇ , at which the lower surface 3 of the toe cap 2 touches the sole 1, is preferably 30 to 60 °, in particular approximately 45 °. At least the surfaces 3 and 4 can merge into one another in a rounded manner, possibly additionally the lower boundary surface of the toe cap 2, which lies against the sole, into the lower surface 3 of the toe cap 2.
  • the radius under which the individual surfaces in such designs amount to one another generally 8 to 20 mm, advantageously 12 mm. In addition to a further improvement in comfort, the presence of the radii results in a further improvement in the service life of the shoe by avoiding sharp kinks.
  • the portion of the toe cap 2 missing at the lower, rear end due to the presence of the lower surface 3 has a size C in the longitudinal direction of the shoe of 10 to 20 mm, preferably of about 15 mm, with a height in the vertical direction substantially corresponding to this value.
  • the freely available bending length of the insole 1, 5 is hereby significantly increased in the critical area of the ball of foot.
  • the safety shoe according to the invention can thus be used almost as comfortably as a normal sports shoe without a toe cap. Nevertheless, excellent toe protection that meets the safety requirements is guaranteed.
  • the invention can be used excellently in the manufacture of safety, protective and professional shoes. Their commercial applicability does not require any precautions that go beyond the average skill of a professional. A broad introduction of the invention into the shoe industry is therefore possible without any problems. The use according to the invention is also not excluded for the fashionable shoe sector.

Abstract

The rear end of the metal toe-cap (2) fixed to the flexible sole (1) is delimited by a bottom surface (3) touching the sole at an acute angle of between 30 and 60 degrees. The rear end of the toe-cap is delimited by a top surface (4) next to the bottom surface and including a right angle with the sole. The back of the toe cap is delimited in at least one part by a convex surface. The bottom and top surfaces lead into one another by a rounded part.

Description

Technisches GebietTechnical field

Die Erfindung betrifft einen Sicherheitsschuh, umfassend eine biegsame Sohle (1) und eine daran festgelegte Zehenkappe (2) aus Metall.The invention relates to a safety shoe comprising a flexible sole (1) and a toe cap (2) made of metal attached to it.

Stand der TechnikState of the art

Ein solcher Sicherheitsschuh ist bekannt aus dem deutschen Gebrauchsmuster 7 903 438. Die Zehenkappe berührt die Sohle dabei unter einem rechten Winkel. Es wird auf diese Weise zwar ein ausgezeichneter Zehenschutz erzielt, der Tragekomfort eines entsprechend ausgestatteten Sicherheitsschuhs ist jedoch wenig befriedigend.Such a safety shoe is known from German utility model 7 903 438. The toe cap touches the sole at a right angle. Excellent toe protection is achieved in this way, but the wearing comfort of a suitably equipped safety shoe is unsatisfactory.

Darstellung der ErfindungPresentation of the invention

Die Aufgabe der Erfindung wird darin gesehen, einen Sicherheitsschuh der eingangs genannten Art derart weiterzuentwickeln, daß sich bei Gewährleistung eines guten Zehenschutzes ein verbesserter Tragekomfort ergibt.The object of the invention is seen in further developing a safety shoe of the type mentioned at the outset in such a way that improved wearing comfort is achieved while ensuring good toe protection.

Diese Aufgabe wird erfindungsgemäß bei einem Sicherheitsschuh der eingangs genannten Art mit den kennzeichnenden Merkmalen von Anspruch 1 gelöst. Auf vorteilhafte Ausgestaltungen nehmen die Unteransprüche Bezug.This object is achieved in a safety shoe of the type mentioned with the characterizing features of claim 1. The subclaims refer to advantageous refinements.

Bei dem erfindungsgemäßen Sicherheitsschuh ist es Vorgesehen, daß die Zehenkappe die Sohle an ihrem rückwärtigen Ende unter einem spitzen Winkel berührt. Der relativ verformbare Bereich der Sohle wird dadurch im Bereich des Fußballens wesentlich vergrößert, was die zur Beugung der Sohle erforderlichen Kräfte reduziert und die Beugung auf einen relativ vergrößerten Bereich der Sohle verteilt. Die beim Prozeß des Gehens zur Beugung der Sohle aufzuwenden Kräfte werden dadurch vermindert, was das Gehen erleichtert und eine Verbesserung des Tragekomforts bedingt. Zusätzlich ergibt sich eine Verminderung der spezifischen Maximalbelastung der Sohle, weil sich die Biegebeanspruchung auf eine vergleichsweise größere Zone der Sohle verteilt und als Folge hiervon eine wesentlich verbesserte Dauerhaltbarkeit. Überraschenderweise muß dennoch keinerlei Beeinträchtigung des Zehenschutzes in Kauf genommen werden. Die von der Zehenkappe aufzunehmenden Kräfte werden vielmehr im Normalfall schräg nach unten und vorn in diese eingeleitet und auf die Sohle übertragen, was die Entstehung eines nach hinten gerichteten Kippmomentes weitestgehend ausschließt. Diese überraschende Erkenntnis war bisher noch nicht vorhanden.In the safety shoe according to the invention, it is provided that the toe cap touches the sole at an acute angle at its rear end. The relatively deformable area of the sole thus becomes essential in the area of the ball of the foot increases, which reduces the forces required to flex the sole and distributes the diffraction over a relatively enlarged area of the sole. The forces to be exerted in the process of walking to flex the sole are thereby reduced, which makes walking easier and improves the wearing comfort. In addition, there is a reduction in the specific maximum load on the sole because the bending stress is distributed over a comparatively larger zone of the sole and, as a result, a significantly improved durability. Surprisingly, no impairment of the toe protection has to be accepted. The forces to be absorbed by the toe cap are normally introduced diagonally downwards and forwards into the latter and transferred to the sole, which largely excludes the occurrence of a backward tilting moment. This surprising finding was not yet available.

Die Zehenkappe kann an ihrem rückwärtigen Ende in zumindest einem Teilbereich durch eine konvex ausgebildete Fläche begrenzt sein. Ihre harmonische Einfügung in den Vorderschaft eines Schuhs wird dadurch erleichtert.The toe cap can be bounded at its rear end in at least one partial area by a convex surface. This facilitates their harmonious insertion into the forefoot of a shoe.

Nach einer anderen Ausgestaltung ist es vorgesehen, daß die Zehenkappe am rückwärtigen Ende durch eine untere Fläche begrenzt ist, die mit der Sohle einen spitzen Winkel anschließt und durch eine obere Fläche, die mit der Sohle im wesentlichen einen rechten Winkel einschließt. Beide Flächen können dabei abgerundet ineinander und gegebenenfalls zusätzlich in die Grundfläche der Zehenkappe übergehen.According to another embodiment, it is provided that the toe cap is delimited at the rear end by a lower surface which adjoins the sole at an acute angle and by an upper surface which essentially encloses a right angle with the sole. Both surfaces can be rounded into one another and optionally also into the base of the toe cap.

Ausführung der ErfindungImplementation of the invention

In der beiliegenden Zeichnung ist ein beispielhafter Sicherheitsschuh in teilweise aufgeschnittener Darstellung wiedergegeben. In den Sicherheitsschuh ist im vorderen Teil eine Zehenkappe 2 eingefügt, die unlösbar mit der Sohle verbunden ist, beispielsweise durch unmittelbares Anspritzen einer aus Kunststoff bestehenden Laufsohle 5 an eine Zehenkappe 2 oder eine Vernietung oder Verklebung der Zehenkappe 2 mit einer Brandsohle 5, welche ihrerseits mit einer Laufsohle 5 verbunden ist. Eine darüber hinausgehende Verbesserung der Festlegung der Zehenkappe 2 in dem gebrauchsfertigen Schuh läßt sich erzielen durch das Einfügen der Zehenkappe in die Zwischenzone zwischen dem Obermaterial des Schuhs und dessen Innenfutter. Das Obermaterial und das Innenfutter sind in den sich unmittelbar an die Zehenkappe anschließenden Bereichen direkt miteinander verbunden, beispielsweise durch gegenseitiges Vernähen und/oder Verkleben. Sie bestehen beide aus einem reißfesten Material und verleihen der Zehenkappe dadurch einen zusätzlich verbesserten Halt. Hinsichtlich des Innenfutters gelangt häufig ein Material mit polsternden und thermisch isolierenden Eigenschaften zur Anwendung. Es hilft verhindern, daß sich im Bereich des Fußes Scheuerstellen bilden und steigert den allgemeinen Tagekomfort. Der Schuh wird im unteren Bereich durch die Laufsohle 5 sowie durch einen Absatz 6 begrenzt und im oberen Bereich durch einen Schaft 7. Der Schaft und die Laufsohle können beliebig gestaltet sein.In the accompanying drawing, an exemplary safety shoe is shown in a partially cut-away representation. In the safety shoe, a toe cap 2 is inserted in the front part, which is inseparably connected to the sole, for example by directly molding an outsole 5 made of plastic onto a toe cap 2 or riveting or gluing the toe cap 2 to an insole 5, which in turn is connected to an outsole 5 is connected. A further improvement in the fixing of the toe cap 2 in the ready-to-use shoe can be achieved by inserting the toe cap into the intermediate zone between the upper material of the shoe and its inner lining. The upper material and the inner lining are connected directly to one another in the areas immediately adjacent to the toe cap, for example by mutual sewing and / or gluing. They are both made of a tear-resistant material and thus give the toe cap an additional improved hold. With regard to the inner lining, a material with cushioning and thermally insulating properties is often used. It helps prevent chafing from forming in the area of the foot and increases general comfort during the day. The shoe is delimited in the lower area by the outsole 5 and by a heel 6 and in the upper area by a shaft 7. The shaft and the outsole can be of any design.

Die Zehenkappe 2 besteht im allgemeinen aus kaltverformtem Blech, beispielsweise aus einem tiefgezogenen Stahl- oder Aluminiumblech. Abweichend erzeugte und zusammengesetzte Ausführungen können problemlos verwendet werden.The toe cap 2 generally consists of cold-formed sheet metal, for example of a deep-drawn steel or aluminum sheet. Variants created and composed can be used without any problems.

Die Zehenkappe wird am rückwärtigen Ende durch eine untere Fläche 3 begrenzt, die die Brandsohle 1 unter einem spitzen Winkel α berührt sowie durch eine obere Fläche 4, die mit der Brandsohle 1 in dem entsprechenden Bereich im wesentlichen einen rechten Winkel einschließt. Die Laufsohle erstreckt sich in diesem Bereich parallel zu der Brandsohle.The toe cap is delimited at the rear end by a lower surface 3 which contacts the insole 1 at an acute angle α and by an upper surface 4 which essentially encloses a right angle with the insole 1 in the corresponding area. The outsole extends parallel to the insole in this area.

Der spitze Winkel α, unter dem die untere Fläche 3 der Zehenkappe 2 die Sohle 1 berührt, beträgt vorzugsweise 30 bis 60°, insbesondere etwa 45°. Zumindest die Flächen 3 und 4 können abgerundet in einander übergehen, eventuell zusätzlich die untere, an der Sohle anliegende Begrenzungsfläche der Zehenkappe 2 in die die untere Fläche 3 der Zehenkappe 2. Der Radius, unter dem die einzelnen Flächen bei solchen Ausführungen in einander übergehen beträgt im allgemeinen 8 bis 20 mm, vorteilhaft 12 mm. Neben einer weiteren Verbesserung des Tragekomforts resultiert aus dem Vorhandensein der Radien eine weitere Verbesserung der Gebrauchsdauer des Schuhs durch Vermeidung scharfer Knickstellen.The acute angle α, at which the lower surface 3 of the toe cap 2 touches the sole 1, is preferably 30 to 60 °, in particular approximately 45 °. At least the surfaces 3 and 4 can merge into one another in a rounded manner, possibly additionally the lower boundary surface of the toe cap 2, which lies against the sole, into the lower surface 3 of the toe cap 2. The radius under which the individual surfaces in such designs amount to one another generally 8 to 20 mm, advantageously 12 mm. In addition to a further improvement in comfort, the presence of the radii results in a further improvement in the service life of the shoe by avoiding sharp kinks.

Der durch das Vorhandensein der unteren Fläche 3 fehlende Abschnitt der Zehenkappe 2 am unteren, rückwärtigen Ende hat in Längsrichtung des Schuhs eine Größe C von 10 bis 20 mm, vorzugsweise von etwa 15 mm bei einer mit diesem Wert im wesentlichen übereinstimmenden Höhe in senkrechter Richtung. Die frei verfügbare Biegelänge der Brand- und Laufsohle 1, 5 ist hierdurch im kritischen Bereich des Fußballens wesentlich vergrößert. Der erfindungsgemäße Sicherheitsschuh läßt sich dadurch nahezu genau so komfortabel benutzen wie ein ganz normaler Sportschuh ohne eine Zehenkappe. Dennoch ist ein hervorragender und den Sicherheitsbestimmungen genügender Zehenschutz gewährleistet.The portion of the toe cap 2 missing at the lower, rear end due to the presence of the lower surface 3 has a size C in the longitudinal direction of the shoe of 10 to 20 mm, preferably of about 15 mm, with a height in the vertical direction substantially corresponding to this value. The freely available bending length of the insole 1, 5 is hereby significantly increased in the critical area of the ball of foot. The safety shoe according to the invention can thus be used almost as comfortably as a normal sports shoe without a toe cap. Nevertheless, excellent toe protection that meets the safety requirements is guaranteed.

Die Erfindung läßt sich ausgezeichnet bei der Herstellung von Sicherheits- Schutz- und Berufsschuhen verwenden. Ihre gewerbliche Anwendbarkeit erfordert keine Vorkehrungen, die über das durchschnittliche Können eines Fachmanns hinausgeht. Eine breite Einführung der Erfindung in die Schuhindustrie ist daher problemlos möglich. Der erfindungsgemäße Einsatz ist auch für den modischen Schuhbereich nicht ausgeschlossen.The invention can be used excellently in the manufacture of safety, protective and professional shoes. Their commercial applicability does not require any precautions that go beyond the average skill of a professional. A broad introduction of the invention into the shoe industry is therefore possible without any problems. The use according to the invention is also not excluded for the fashionable shoe sector.

Claims (4)

Sicherheitsschuh, umfassend eine biegsame Sohle (1) und eine darin festgelegte Zehenkappe (2) aus Metall, dadurch gekennzeichnet, daß die Zehenkappe (2) die Sohle (1) an ihrem rückwärtigen Ende unter einem spitzen Winkel α berührt.Safety shoe comprising a flexible sole (1) and a metal toe cap (2) fixed therein, characterized in that the toe cap (2) contacts the sole (1) at its rear end at an acute angle α. Sicherheitsschuh nach Anspruch 1, dadurch gekennzeichnet, daß die Zehenkappe (2) am rückwärtigen Ende in zumindest einem Teilbereich durch eine konvex ausgebildete Fläche begrenzt ist.Safety shoe according to claim 1, characterized in that the toe cap (2) is delimited at least in a partial area by a convex surface at the rear end. Sicherheitsschuh nach Anspruch 1 bis 2, dadurch gekennzeichnet, daß die Zehenkappe (2) am rückwärtigen Ende durch eine untere Fläche (3) begrenzt ist, die die Sohle unter einem spitzen Winkel berührt sowie durch eine obere Fläche (4), die mit der Sohle im wesentlichen einen rechten Winkel einschließt.Safety shoe according to Claims 1 to 2, characterized in that the toe cap (2) is delimited at the rear end by a lower surface (3) which contacts the sole at an acute angle and by an upper surface (4) which is in contact with the sole essentially includes a right angle. Sicherheitsschuh nach Anspruch 3, dadurch gekennzeichnet, daß die untere und die obere Fläche (3, 4) abgerundet ineinander übergehen.Safety shoe according to claim 3, characterized in that the lower and the upper surface (3, 4) merge into one another in a rounded manner.
EP97105018A 1996-06-12 1997-03-25 Security-shoe Withdrawn EP0812551A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996123361 DE19623361C1 (en) 1996-06-12 1996-06-12 Safety shoe with flexible sole and metal toe-cap
DE19623361 1996-06-12

Publications (2)

Publication Number Publication Date
EP0812551A2 true EP0812551A2 (en) 1997-12-17
EP0812551A3 EP0812551A3 (en) 1999-01-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97105018A Withdrawn EP0812551A3 (en) 1996-06-12 1997-03-25 Security-shoe

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EP (1) EP0812551A3 (en)
DE (1) DE19623361C1 (en)
NO (1) NO971923L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003037127A1 (en) * 2001-10-29 2003-05-08 Esjotech S.R.L. Protective toecap, particularly for safety shoes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10220174A1 (en) * 2002-05-06 2003-12-04 Kurt Kemper Method and device for producing an insert for safety or protective shoes and such an insert
NL1021967C2 (en) * 2002-11-21 2004-05-26 Isco Technic B V Safety shoe with metal toe cap, has support secured directly to end wall of toe cap made from hard aluminium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1154016B (en) * 1959-10-30 1963-09-05 Schabsky Atlas Schuhfab Safety shoe
US4908963A (en) * 1987-09-04 1990-03-20 Dezider Krajcir Safety shoe
US5457898A (en) * 1994-03-24 1995-10-17 Fortin; Gilles Metatarsal guard for safety shoe

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7903438U1 (en) * 1979-02-08 1979-06-13 Johann Terhoeven Gmbh & Co, 4178 Kevelaer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1154016B (en) * 1959-10-30 1963-09-05 Schabsky Atlas Schuhfab Safety shoe
US4908963A (en) * 1987-09-04 1990-03-20 Dezider Krajcir Safety shoe
US5457898A (en) * 1994-03-24 1995-10-17 Fortin; Gilles Metatarsal guard for safety shoe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003037127A1 (en) * 2001-10-29 2003-05-08 Esjotech S.R.L. Protective toecap, particularly for safety shoes
US7062868B2 (en) 2001-10-29 2006-06-20 Esjotech S.R.L. Protective toecap, particularly for safety shoes

Also Published As

Publication number Publication date
NO971923D0 (en) 1997-04-25
DE19623361C1 (en) 1997-09-11
NO971923L (en) 1997-12-15
EP0812551A3 (en) 1999-01-20

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