EP0766521A2 - Bourrelets de contact avec le ballon pour chaussure de sport - Google Patents

Bourrelets de contact avec le ballon pour chaussure de sport

Info

Publication number
EP0766521A2
EP0766521A2 EP96919976A EP96919976A EP0766521A2 EP 0766521 A2 EP0766521 A2 EP 0766521A2 EP 96919976 A EP96919976 A EP 96919976A EP 96919976 A EP96919976 A EP 96919976A EP 0766521 A2 EP0766521 A2 EP 0766521A2
Authority
EP
European Patent Office
Prior art keywords
ball
pad
shoe
layer
top layer
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Withdrawn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
EP96919976A
Other languages
German (de)
English (en)
Inventor
Konrad Tiefenbacher
Antoine Briant
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.)
Adidas AG
Original Assignee
Adidas AG
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 Adidas AG filed Critical Adidas AG
Publication of EP0766521A2 publication Critical patent/EP0766521A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/02—Football boots or shoes, i.e. for soccer, football or rugby
    • A43B5/025—Football boots or shoes, i.e. for soccer, football or rugby characterised by an element which improves the contact between the ball and the footwear
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/02—Football boots or shoes, i.e. for soccer, football or rugby

Definitions

  • This invention pertains generally to the field of sports shoes used for kicking balls, and more particularly pertains to sport shoes for kicking balls in which it is desired to impart maximum velocity and spin on the ball . These parameters are most applicable to the games of soccer, American football, and rugby. Description of the Related Art
  • High-quality soccer shoes often provide a high- friction surface, such as rubber pads at strategic locations on the shoe upper. These rubber pads prevent the ball from slipping on the shoe when the soccer player kicks the ball. Some available pads are somewhat rigid which often detracts from the performance of the shoe when the player needs to feel the ball with his or her foot, such as during dribbling or trapping. Thus, a shoe that provides good kicking performance may have poor tactile response for dribbling or trapping, and conversely, a shoe with superior feel may provide unsatisfactory kicking performance. Accordingly, it will be beneficial to have a soccer shoe that provides feel for ball handling and improved properties for generating maximum ball velocity and spin during kicking.
  • the present invention overcomes the deficiencies in the prior art by providing a ball-contacting pad that has superior properties for kicking a soccer ball to achieve improved ball control (i.e., velocity and spin) while providing a good "feel" of the ball on the player's foot.
  • the advantages of the present invention are provided by a pad comprising two layers connected by elastic elements or webs.
  • a bottom layer preferably includes a scrim for inelasticity.
  • the top layer may also have a scrim and preferably includes a high- friction surface for contacting the soccer ball.
  • the interconnecting elements are located between the top and bottom layers and are preferably biased from front to back so that as the top layer moves backward, the interconnecting elements stretch to store potential energy. The bias also allows the pad to compress easily to provide good tactile feel.
  • the ball-contacting pads are attached to a shoe upper at strategic locations where players most often use their foot for handling and kicking the ball.
  • a purpose of the ball-contacting pad of the present invention is to create a structure that permits parallel displacement of the top, ball-contacting surface relative to its bottom, shoe-attaching surface.
  • the interconnecting, elastic elements are shaped and oriented for optimum potential energy storage.
  • a lubricating fluid is located between the layers to reduce friction as the top and bottom layers slide past one another.
  • the relative motion of the layers during ball impact is most aptly described as parallel. However, it is to be understood that the layers deform during ball impact so that the relative motion is not purely parallel, but includes motion wherein the top layer moves toward the bottom layer.
  • Fig. 1 is a perspective view of a sport shoe having ball-contacting pads of the present invention attached to the shoe's upper.
  • Fig. 2 is a perspective view of a portion of a preferred embodiment of a ball-contacting pad of the present invention.
  • Fig. 3 is a cross-sectional view of the ball- contacting pad of Fig. 2 when the top and bottom layers are in static alignment.
  • Fig. 4 is a cross-sectional view of the ball- contacting pad of Figs. 2 and 3 as it would appear during impact by a ball.
  • Fig. 5 is a cross-sectional view of an alternative embodiment of a ball-contacting pad of the present invention.
  • Fig. 1 shows a perspective view of a sport shoe
  • FIG. 12 having ball-contacting pads 10 located thereon.
  • a preferred embodiment of the ball-contacting pad 10 is shown in Figs. 2—4 and includes a textured surface 14 having transverse open channels 16.
  • the textured surface 14 is located on a top layer 18, which is interconnected to a bottom layer 20 by elastic interconnecting elements, or webs, 22.
  • the bottom layer 20 attaches to the shoe 12.
  • the sport shoe 12 includes the pads 10 at strategic locations on an upper 24 of the shoe.
  • the shoe 12 also includes a toe region 26 and a heel region 28.
  • the toe 26 is the leading edge of the foot as it impacts the ball.
  • the ball-contacting pads 10 have margins that may be referred to as a leading edge 30 and a trailing edge 32.
  • the interconnecting elements 22 are biased to enhance the ball-kicking properties of the pads 10 and must be oriented properly relative to the shoe to provide the optimum performance.
  • Fig. 2 represents a perspective view of the elongate ball-contacting pad 10 as it would appear immediately after extrusion or casting during the manufacturing process.
  • the pad 10 includes the layers 18, 20 and elements 22. Interstices 34 are between the layers 18, 20 and the elements 22. As stated, the pad 10 may be extruded or cast.
  • the element will be fabricated of an elastic material having a high coefficient of friction and a predictable spring rate, such as natural rubber, synthetic rubber, or other polymer.
  • a suitable material is ROTON A28, available from ESN Elastomer GmbH, Robert-
  • the bottom layer 20 preferably includes a scrim
  • the scrim is a nonelastic, material (woven or nonwoven) that is embedded in the bottom layer 20 during fabrication of the pad 10.
  • Alternative embodiments may include a scrim embedded in the top layer 18.
  • Further embodiments include a scrim attached to an outside surface of the top 18 or bottom 20 layer. The scrim improves the efficiency of transferring a force at the top layer 18 into elongation of the elements 22.
  • the scrim makes the layer substantially inelastic in the plane of the scrim, while permitting the layer to be flexible along all directions out of the plane of the scrim. Therefore, if the top layer 18 has a scrim, it will be able to deform as shown in Fig. 4 and described below, but it would not elongate substantially along its longitudinal direction. Also, because the scrim is flexible perpendicular to its plane, it does not interfere with tactile response of the ball on the foot during ball handling.
  • the interstices 34 include a lubricating fluid 38 to reduce friction between the top layer 18 and the bottom layer 20 during impact with a ball.
  • the lubricating fluid may be a silicone oil, an elastomeric gel, a petroleum product, or other viscous fluid.
  • a lubricating talc may be located in the interstices 34 to reduce friction. It is not necessary to fill the entire interstices 34 with the fluid 38, but it is generally considered desirable to coat the walls of the interstices 34 sufficiently to reduce the friction between the top and bottom layers during ball impact.
  • the amount and type of fluid 38 that is located within the interstices 34 will be determined by empirical tests. Additionally, the type and amount of fluid 38 may be dependent upon particular performance parameters that are desired. Preferably, the fluid will be contained within the interstices by an edge wall 56
  • the margins of the pad may be sewn together, but this may reduce the elastic response of the pad.
  • Fig. 5 discloses a cross-sectional view of an alternative embodiment of a ball-contacting pad 40, which includes a top layer 42, a bottom layer 44, and interconnecting elements 46.
  • the pad 40 also includes a textured top surface 48 that includes depressions and ridges for creating a friction surface for ball control.
  • the embodiment of Fig. 5 may further include a viscous, lubricating fluid 38, or talc, in its interstices 54.
  • the primary structural difference between the pad 40 and the pad 10 described above is the structure and arrangement of the interconnecting elements 46.
  • Elements 46 are elastic elements having a somewhat triangular cross-section, including a perpendicular surface 50 that is perpendicular to the top layer 42 and the bottom layer 44, and a beveled surface 52 which is roughly analogous to the hypotenuse of the triangular cross-section. Because of the structure and shape of the interconnecting elements 46, it is unlikely that the top layer 42 will contact the bottom layer 44 during ball contact. Accordingly, a friction-reducing fluid may not be necessary or desirable in this embodiment.
  • the ball-contacting pad 10 represents the element immediately after it has been extruded or cast.
  • the ball-contacting pad is prepared as a sheet having the configuration of Fig. 2 and is thereafter cut or trimmed into desired shapes for mounting on the shoe upper 24, as shown in Fig. 1.
  • the profile of the ball-contacting pads 10 can be configured and located on the shoe in an almost infinite array of possibilities.
  • the ball-contacting pad After forming the ball-contacting pad as shown in Fig. 2, it is preferably provided with the lubricating fluid 38 in the interstices 34. Thereafter, the edges of the ball-contacting pad 10 are sealed with the edging layer 56 that is preferably a thin strip of the material used to fabricate the ball-contacting pad 10.
  • the preferred method comprises fabricating the pad with an oversize top layer 18 that extends beyond the elastic elements 22. The overhanging portion of the top layer 18 is then folded down to cover the interstices 34 and adhered in place. Alternatively, it is possible to seal the open ends of the interstices 34 by pinching the ball- contacting pad 10 at its margins and sewing or cementing the margins to contain the viscous fluid 38 within the interstices between the margins.
  • the pad 10 is located on, and affixed to, the shoe upper 24.
  • the sport shoe 12 is then ready for use.
  • the following description shall assume the shoe 12 is being used for soccer, but it shall be understood that the description can apply equally well to other games, such as American football and rugby.
  • a player kicks a soccer ball 58 by extending forward a leg so that the toe 26 of the shoe is the leading edge of the shoe during ball impact; that is, the foot is moving forward, toe first. If the player desires maximum velocity, and thus maximum distance for the soccer ball, he or she will kick the ball so that the force of the kick is directed through the ball's center of mass and the ball will move forward linearly.
  • the player will want to put spin on the ball so that it moves in an arc to make it more difficult for opposing players to intercept.
  • the player will kick the ball "off center” so as to create a force vector that does not pass through the center of mass of the ball.
  • the force vector on the ball can be resolved into a radial component and a tangential component.
  • the radial component will give the ball a linear forward velocity, while the tangential component will cause the ball to spin.
  • the greater the tangential component the greater the amount of spin on the ball.
  • tangential force will not be purely tangential due to the deformation of the ball during impact, but for descriptive purposes it shall be called tangential herein.
  • the force will have two components, a radial component through the center of mass and a tangential component.
  • the forces will cause equal and opposite reaction forces on the ball- contacting pad 10, as shown in Fig. 4.
  • the radial component will compress the pad, causing the top layer to move toward the bottom layer.
  • the tangential component will cause the top layer 18 to move longitudinally toward the heel 28. Recall that the bottom layer is affixed to the shoe.
  • potential energy is stored in the elastic interconnecting elements 22, which can be modeled as springs having a spring constant k.
  • the tangential force can be resolved into a tension force in each elastic element 22.
  • the impact ' s radial force component will cause the ball 58 to move in the direction of the radial force, and the force will subside as the ball begins to move away from the foot. As this occurs, the potential energy stored in the elements 22 will begin moving the top layer 18 toward its static alignment . This movement will result in a nearly pure tangential force on the ball 58, causing an angular velocity that is proportional to the tangential force. This dynamic effect enables a soccer player to put significantly more spin on the ball than with prior art shoes.
  • the ball-contacting pad 10 is pliable along an axis perpendicular to the plane of the top layer 18, it provides greater feel of the ball - li ⁇ on the player's foot so as not to interfere with low- impact ball handling such as dribbling and trapping. Ball-handling feel is also facilitated by the structure and orientation of the elements 22, which are designed to offer low resistance to forces perpendicular to the plane of the top layer 18.
  • the ball-contacting pad 10 compresses during impact with the ball 58 so that the top layer 18 is closer to the bottom layer 20 near the center of impact than it is in its static state, as represented in Fig. 3.
  • This compression can cause the walls of the interstices 24 to come into contact, thus creating friction within the interstices that would prevent the top layer 18 from shifting transversely relative to the bottom layer 20.
  • the lubricating fluid 38 within the interstices 34 reduces this friction allowing greater movement of the top layer in the direction of the tangential reaction force.
  • the ball-contacting pad 40 in the embodiment of Fig. 5 will perform substantially the same as the ball- contacting pad 10 of Figs. 2—4.
  • the different configuration of the interconnecting elements 46 will reduce contact between the walls of interstices 54, thus reducing the need for a lubricating fluid.
  • the pad 40 will not compress as much as the pad 10 described above because of the perpendicular wall 50, which will not "lay over,” as do the elements 22.
  • the portion of the interconnecting element 46 that is closest to the perpendicular wall will be compressed. Conversely, the portion near the beveled surface 52 will be put into tension as the top layer 42 is moved by the tangential reaction force. Thus, the portion of the element 46 that is near the beveled surface 52 will act as a spring and store potential energy so that the ball-contacting pad 40 will perform substantially as described in connection with the ball-contacting pad 10 of Figs. 2— .
  • top layer and surfaces 14, 18 are textured surfaces 14, 48, it is to be understood that many other surfaces are available and would be suitable for the present invention.
  • the primary purpose of the top layer and surfaces 14, 18 is to provide a ball-contacting surface such that the ball will not slip or slide along the top layer during ball impact.
  • the current, preferred-embodiment pads 10 are made of ROTON A28 from ESN Elastomer having a 2 mm thick top layer 18 with 1 mm deep channels 16 and a 1.5 mm thick bottom layer 20.
  • the elements 22 are 1.2 mm thick and spaced approximately 12 mm apart and forming an angle of 30° with the bottom layer 20.
  • the bottom layer includes a linen textile layer adhered to its bottom surface as a scrim 36.
  • the scrim was attached "off bias," that is, neither warp nor weft are aligned to a longitudinal axis of the pad 10.
  • the interstices 34 were coated with a silicone oil, and the ends of the interstices were left open.
  • the spring constant of the elements 22 has a theoretical design goal of approximately 14,000 N/m.

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 concerne une chaussure de sport équipée de bourrelets de contact avec le ballon, qui permettent d'améliorer l'efficacité du coup de pied dans le ballon sans diminuer de manière appréciable celle du toucher de ballon. Les bourrelets comportent une couche supérieure séparée d'une couche inférieure par des éléments ou des bandes élastiques de liaison. La couche supérieure et la couche inférieure ont une structure sensiblement plane et allongée. La disposition des bourrelets sur la chaussure est telle que, par exemple, lorsqu'un joueur de football projette le ballon du pied, les forces de réaction résultant de l'impact déplacent la couche supérieure de manière longitudinale, dans une direction sensiblement parallèle au plan de la couche inférieure, ce qui a pour effet d'étirer les éléments de liaison élastique et d'occasionner un stockage potentiel d'énergie. Dès que le ballon n'est plus en contact avec la chaussure du joueur, les forces de réaction diminuent et l'énergie potentielle emmagasinée dans les éléments de liaisons esttransférée vers la couche supérieure, toujours selon un déplacement longitudinal mais dans une direction opposée. Ce mouvement de retour imprime une force tangentielle au ballon: ainsi, un joueur peut donner un effet sensible au ballon, l'utilisation de cet effet étant un élément tactique clé dans bon nombre de phases d'un match de football.
EP96919976A 1995-04-18 1996-04-18 Bourrelets de contact avec le ballon pour chaussure de sport Withdrawn EP0766521A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US42340595A 1995-04-18 1995-04-18
US423405 1995-04-18
PCT/IB1996/000582 WO1996032856A2 (fr) 1995-04-18 1996-04-18 Bourrelets de contact avec le ballon pour chaussure de sport

Publications (1)

Publication Number Publication Date
EP0766521A2 true EP0766521A2 (fr) 1997-04-09

Family

ID=23678788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96919976A Withdrawn EP0766521A2 (fr) 1995-04-18 1996-04-18 Bourrelets de contact avec le ballon pour chaussure de sport

Country Status (6)

Country Link
EP (1) EP0766521A2 (fr)
JP (1) JPH10501725A (fr)
AU (1) AU5843496A (fr)
BR (1) BR9606326A (fr)
CA (1) CA2193229A1 (fr)
WO (1) WO1996032856A2 (fr)

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GB9909400D0 (en) * 1999-04-24 1999-06-23 Bowes Alan A sports terrain
GB2361406A (en) * 2000-04-18 2001-10-24 Iain Davis Football boot with elasticated frictional surface
DE20204457U1 (de) 2002-03-20 2002-06-13 Adidas International B.V., Amsterdam Schuh
GB0229496D0 (en) * 2002-12-18 2003-01-22 Johnston Craig P Article of footwear and detachable cover
GB0229495D0 (en) * 2002-12-18 2003-01-22 Johnston Craig P Article of footwear
US7562471B2 (en) 2006-12-04 2009-07-21 Nike, Inc. Article of footwear with gripping system
US20090113766A1 (en) 2007-11-07 2009-05-07 Nike, Inc. Article of Footwear with a Water Repelling Member
GB2445912B (en) * 2007-01-16 2011-08-24 Bassey Essien Sports shoes
US8196320B2 (en) 2007-10-22 2012-06-12 Nike, Inc. Article of footwear with interchangeable bootie
US7941943B2 (en) 2007-10-22 2011-05-17 Nike, Inc. Ball control insert
GB2454737A (en) * 2007-11-17 2009-05-20 Kuldip Singh Balgard Protective football boot
WO2010055276A1 (fr) * 2008-11-17 2010-05-20 Brightstar Sports Tec Limited Composant de contrôle du ballon pour une chaussure, un gant ou un protège-tibia de football
US20100236103A1 (en) * 2009-03-17 2010-09-23 Wade Joseph B Soccer kicking aid and method of using the same
JP4886922B2 (ja) 2009-09-28 2012-02-29 美津濃株式会社 フットボールシューズ用アッパー構造
US8356429B2 (en) 2010-04-22 2013-01-22 Nike, Inc. Article of footwear with ball control portion
US8826566B2 (en) 2011-01-13 2014-09-09 SR Holdings, LLC Footwear
US9009992B2 (en) 2011-03-15 2015-04-21 Nike, Inc. Article of footwear with a ball contacting member
HUP1200447A1 (en) 2012-07-27 2014-01-28 Laszlo Oroszi Surface structure of enhanced friction for sports shoes and method for manufacturing it
FR3006151B1 (fr) * 2013-05-30 2015-12-18 Stephane Franc Chaussure de sport, notamment football, rugby
KR102095550B1 (ko) * 2018-10-25 2020-03-31 낫소홀딩스(주) 족구화
FR3096554A1 (fr) * 2019-06-01 2020-12-04 David Amiel Chaussure pour sports incluant un contact ballon-pied
US11484090B2 (en) 2019-09-24 2022-11-01 Nike, Inc. Article of footwear with ball control region

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US3650051A (en) * 1970-06-08 1972-03-21 William H Sass Punting accessory for football player{40 s shoe
DE2255628A1 (de) * 1972-11-14 1974-05-16 Manfred Brandt Schuhueberzug
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Also Published As

Publication number Publication date
JPH10501725A (ja) 1998-02-17
WO1996032856A3 (fr) 1997-01-16
BR9606326A (pt) 1997-09-16
WO1996032856A2 (fr) 1996-10-24
CA2193229A1 (fr) 1996-10-24
AU5843496A (en) 1996-11-07

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