WO1999038406A1 - Bord arrondi de l'avant-pied d'une semelle section transversale son procede de fabrication - Google Patents

Bord arrondi de l'avant-pied d'une semelle section transversale son procede de fabrication Download PDF

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Publication number
WO1999038406A1
WO1999038406A1 PCT/US1999/001475 US9901475W WO9938406A1 WO 1999038406 A1 WO1999038406 A1 WO 1999038406A1 US 9901475 W US9901475 W US 9901475W WO 9938406 A1 WO9938406 A1 WO 9938406A1
Authority
WO
WIPO (PCT)
Prior art keywords
sole
curvature
radius
medial forefoot
forefoot portion
Prior art date
Application number
PCT/US1999/001475
Other languages
English (en)
Inventor
Roland Seydel
Original Assignee
Fila Sport S.P.A.
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 Fila Sport S.P.A. filed Critical Fila Sport S.P.A.
Priority to AU25615/99A priority Critical patent/AU2561599A/en
Publication of WO1999038406A1 publication Critical patent/WO1999038406A1/fr

Links

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
    • 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
    • A43B5/00—Footwear for sporting purposes
    • A43B5/10—Tennis shoes

Definitions

  • the present invention is directed to a sole of an article of footware, and in particular a sole of an article of footware that includes a rounded forefoot medial sole edge.
  • Sport shoes such as tennis shoes or other court shoes have long been known.
  • known sport shoes have not heretofore provided sufficient support and traction for court sports such as tennis, racquetball, or basketball, for example.
  • known sport shoes have failed to provide adequate traction during sharp cutting or turning movements of a user during a court sport such as basketball or racquetball. It is during these types of motions, i.e., sharp cutting or turning, that many injuries have been experienced. For example, when a racquetball player is poised on their toes in anticipation of movement from side to side, the area of contact between the user's shoe and the court surface is concentrated beneath the forefoot area of the sole.
  • the area of contact shrinks to a minuscule size thereby raising the risk that the user will lose all traction and fall or trip. Furthermore, since the area of contact shrinks to such a small size, a relatively minuscule amount of liquid such as water or sweat could cause the user to fall.
  • the curved portion is not tangential with the planar outer surface of the outsole, the area of contact between the sole and a court surface rapidly shrinks as the sole is rotated towards the direction of the lunge because of the non continuous curvature of the transition between the curved portion and the planar bottom surface of the outsole.
  • the area of contact between the sole of the shoe and a court surface inherently is smaller when a user performs a lunge that includes both lateral and forward components. For example, if a user lunges partially forward and partially to their left, the user will tend to roll their right foot towards the medial side and forward, thereby placing the forward most portion of the medial side of the shoe sole in contact with the court surface. As the degree of movement becomes directed in a more forward direction, the area of contact between the sole of the shoe and the court surface becomes smaller since the width of the sole across the front end thereof is much narrower than the entire medial side of the sole.
  • a shoe sole is provided with a substantially planar outer surface, a side wall arranged around the periphery of the substantially planar outer surface, and a medial forefoot portion that is curved and substantially tangential to the substantially planar outer surface and in contact with the side wall.
  • the medial forefoot portion With a curvature that is substantially tangential to the substantially planar outer surface, the present invention enables a user to smoothly roll their foot in a direction towards their instep, or the medial portion of their foot, such as those motions typically performed during lateral lunging-type motions commonly performed during court sport activities.
  • the area of contact smoothly transitions from the main portion of the substantially planar outer surface to the medial forefoot portion without encountering bulges or unstable positions so that a user can smoothly perform a lateral lunge without the danger of a sudden loss of balance or twist which could cause a loss of balance or an injury.
  • a shoe sole is provided with a medial forefoot portion that includes a first radius of curvature proximate to the arch portion of the sole that is smaller than a second radius of curvature of the medial forefoot portion near the forward end of the sole.
  • the present invention provides a larger area of contact than would otherwise be achieved if the same radius of curvature was used along the entire length of the medial forefoot portion.
  • traction available to the user is more consistent over the range of lateral lunging motions from purely lateral lunges to lunges directed substantially forward.
  • the medial forefoot portion is provided with a plurality of rectilinear channels, i.e., channels with a substantially rectangular cross section, substantially parallel to the longitudinal axis of the sole.
  • the transition or junction between the substantially planar outer surface and the curved part of the medial forefoot portion is smooth and is provided with some flexibility when a substantial part of the user's weight is transferred to the medial curved part of the medial forefoot portion.
  • FIG. 1 is a bottom plan view of the outer surface of a sole of an article of footware according to the present invention
  • Figure 2 is a cross-sectional view 2-2 shown in Figure 1 ;
  • Figure 3 is a front right top perspective view of a shoe including the sole according to the present invention.
  • Figure 4 is a side elevational view of a shoe having the sole according to the present invention.
  • Figure 5 is a bottom plan view of a shoe sole incorporating the present invention.
  • Figure 6 is a side elevational view of a shoe incorporating the sole of the present invention.
  • Figure 7 is a front elevational view of a shoe with a sole according to the present invention.
  • a shoe sole 10 is shown in bottom plan view and includes generally a front end 12, a medial forefoot portion 14, and an arch portion 16.
  • the outer surface 18 is shown in plan view in Figure 1 and includes a tread pattern 20 which may be constructed in any known manner, such as molding and molding and cutting or scoring.
  • Outsole 22, upon which outer surface 18 is formed, may be constructed of any known material, including natural or synthetic rubbers, for example.
  • portions of the outer surface 18 may include exposed portions of blown EVA, which is commonly used in making portions such as midsole 24, and well known in the art.
  • the medial forefoot portion 14 of the sole 10 is curved between the outer surface 18 and the side wall 26.
  • side wall 26 is generally formed around the periphery of outer surface 18, and may be formed of any one of the outsole 22, exposed portions of the midsole 24 or portions of the shoe upper 28.
  • medial forefoot portion 14 has a radius of curvature 30 such that the medial forefoot portion is tangential with the outer surface 18 of the sole 10 and is formed between the outer surface and the side wall 26. As is shown in Figure 2, the extreme upper end 32 of the medial forefoot portion may form the side wall in the medial
  • the radius of curvature of the medial forefoot portion extends over approximately 90° from the outer surface to the side wall.
  • surface 18 is substantially planar. However, as is common and well known in the art, surface 18 is not typically purely planar. Rather, there are slight contours incorporated into the surface 18, over the length and width of the shoe, as well as recessed tread designs 20. However, aside from the recessed portions, surface 18 is substantially planar, at least in the area proximate to the medial forefoot portion 14.
  • the medial forefoot portion 14 includes rectilinear channels 34 arranged substantially parallel to the longitudinal axis 36 of sole 10.
  • rectilinear channel means a channel having a substantially rectangular cross section.
  • the radius of curvature of the medial forefoot portion 14 is at least 12 mm. It has been found that a radius of curvature of at least 12 mm provides a sufficiently large area of contact between the sole 10 and a court surface that a typical user will be provided with enhanced traction and comfort during lateral lunging motions, as compared to the soles taught in the prior art.
  • the medial forefoot portion 14 is provided with a first radius of curvature at a first portion 38 of the medial forefoot area proximate to the arch portion 24 of the sole and a second radius of curvature at a second portion 40 of the medial forefoot portion proximate to the forward end 12 of the sole 10, where the radius of curvature at the first portion 38 is less than the radius of curvature at second portion 40.
  • -6- medial portion 14 can be made larger than that which would be generated if the same radius of curvature was used for the entire length of the medial forefoot portion 14. This is because when the sole 10 is rotated over a surface such as a court surface in a direction purely laterally towards the medial forefoot portion, the area of contact generated between the sole 10 and the court surface extends over a substantial portion of the length of the medial forefoot portion 14 and over a portion of the radius of curvature of portion 14.
  • the area of contact between the shoe sole 10 and a court surface extends only over a short portion of the medial forefoot portion 14 Therefore, by making the second radius of curvature larger than the first, the area of contact extends over a larger portion of the radius of curvature of portion 14, thereby tending to increase the size of the area of contact. Therefore, the amount of traction provided by the sole can be made to be more predictable since the size of the area of contact is made more consistent over the range of lunging-type motions a user might perform which include differing amounts of lateral and forward components.
  • the radius of curvature of the medial forefoot portion is from about 12 mm to 18 mm.
  • the radius of curvature between the first portion 38 and second portion 40 may gradually increase.
  • the radius of curvature portion 38 may be 12 mm while the radius of curvature at position 42 may be 13 mm, 14 mm at position 44, 14 mm at position 46, 15 mm at position 48, 17 mm at position 50, 16 Y_ mm at position 52, 17 mm at position 54, 17 Vi mm at position 56, 18 mm at position 58 and 14 mm at position 60.
  • the radius of curvature of the medial portion 14 increases progressively along the medial portion 14 of sole 10, from the smallest radius of curvature at portion 38 to the largest radius of curvature at portion 40.
  • a progressively varying increase in the radius of curvature along the medial forefoot edge provides for optimal comfort during pushing off and turning motions from the side and front of the big toe during athletic activities. This design is particularly advantageous in court sports such as tennis, basketball or volleyball in which both running and twisting motions are required.
  • the shoe sole 10 may also include a cleated portion 62.
  • cleated portion 62 is formed of a plurality of cleats 64 provided on a resilient shroud adjacent the medial forefoot portion 14.
  • the shoe sole will enable a user to maintain traction on a turf surface even if traction between the shoe sole 10 and the turf surface has been lost and the sole has been rotated such that the cleated portion 62 comes into contact with the turf. Furthermore, cleated portion 62 provides extra protection when the shoe sole 10 is used in court sports where traction may ultimately be lost and the user's toe or the top portion of the user's foot adjacent the vamp area 66 may crash into a court surface.
  • a method for manufacturing a sole for an article of footware includes forming a sole, such as sole 10, with a substantially planar outer surface, such as outer surface 18, as shown in Figures 1-7, forming a side wall on the outer surface, and forming a medial forefoot portion, such as portion 14, tangentially to the outer surface 18.
  • the sole 10 may include the features described above with respect to Figures 1-7.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

L'invention porte sur une semelle (10) de chaussure et son procédé de fabrication tel que ladite semelle comporte une surface extérieure (18) sensiblement plane, une paroi latérale (26) à la périphérie de la surface extérieure, et une portion médiane incurvée (14) de l'avant-pied. Ladite semelle est particulièrement bien adaptée aux mouvements et déplacements à la surface d'un court de racquetball, de tennis, de basket-ball etc. La courbure de la portion médiane de l'avant pied sera de préférence tangente à la surface extérieure de la semelle, et son rayon de courbure augmentera graduellement en allant de la partie voisine de la cambrure vers l'extrémité avant de la semelle.
PCT/US1999/001475 1998-01-30 1999-01-29 Bord arrondi de l'avant-pied d'une semelle section transversale son procede de fabrication WO1999038406A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU25615/99A AU2561599A (en) 1998-01-30 1999-01-29 Radiused forefoot sole edge and a method for manufacturing radiused forefoot sole edge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7320698P 1998-01-30 1998-01-30
US60/073,206 1998-01-30

Publications (1)

Publication Number Publication Date
WO1999038406A1 true WO1999038406A1 (fr) 1999-08-05

Family

ID=22112378

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/001475 WO1999038406A1 (fr) 1998-01-30 1999-01-29 Bord arrondi de l'avant-pied d'une semelle section transversale son procede de fabrication

Country Status (2)

Country Link
AU (1) AU2561599A (fr)
WO (1) WO1999038406A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2912038A1 (fr) * 2007-02-07 2008-08-08 Michelin Soc Tech Chaussure de sport de haute performance
EP1985195A1 (fr) * 2006-02-10 2008-10-29 Yonex Kabushiki Kaisha Chaussure
WO2021040912A1 (fr) * 2019-08-29 2021-03-04 Nike Innovate C.V. Semelle d'usure pour un article chaussant

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3191321A (en) * 1961-07-07 1965-06-29 Eugen Bruetting Soccer shoe with ball control surface
US4045888A (en) * 1976-10-26 1977-09-06 Bruce Oxenberg Athletic shoe
US4194310A (en) * 1978-10-30 1980-03-25 Brs, Inc. Athletic shoe for artificial turf with molded cleats on the sides thereof
US4559723A (en) * 1983-01-17 1985-12-24 Bata Shoe Company, Inc. Sports shoe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3191321A (en) * 1961-07-07 1965-06-29 Eugen Bruetting Soccer shoe with ball control surface
US4045888A (en) * 1976-10-26 1977-09-06 Bruce Oxenberg Athletic shoe
US4194310A (en) * 1978-10-30 1980-03-25 Brs, Inc. Athletic shoe for artificial turf with molded cleats on the sides thereof
US4559723A (en) * 1983-01-17 1985-12-24 Bata Shoe Company, Inc. Sports shoe

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1985195A1 (fr) * 2006-02-10 2008-10-29 Yonex Kabushiki Kaisha Chaussure
EP1985195A4 (fr) * 2006-02-10 2011-03-23 Yonex Kk Chaussure
US8533977B2 (en) 2006-02-10 2013-09-17 Yonex Kabushiki Kaisha Shoe
FR2912038A1 (fr) * 2007-02-07 2008-08-08 Michelin Soc Tech Chaussure de sport de haute performance
WO2008095666A1 (fr) 2007-02-07 2008-08-14 Societe De Technologie Michelin Chaussure de sport haute performance
US20100170114A1 (en) * 2007-02-07 2010-07-08 Societe De Technologie Michelin High-Performance Sports Shoe
US8424223B2 (en) * 2007-02-07 2013-04-23 Compagnie Generale Des Etablissements Michelin High-performance sports shoe
WO2021040912A1 (fr) * 2019-08-29 2021-03-04 Nike Innovate C.V. Semelle d'usure pour un article chaussant
TWI770576B (zh) * 2019-08-29 2022-07-11 荷蘭商耐克創新有限合夥公司 鞋類物件及用於鞋類物件的大底
US11510459B2 (en) 2019-08-29 2022-11-29 Nike, Inc. Outsole for an article of footwear

Also Published As

Publication number Publication date
AU2561599A (en) 1999-08-16

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