EP2432570B1 - Procédé pour fabriquer un ballon et ballon - Google Patents

Procédé pour fabriquer un ballon et ballon Download PDF

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Publication number
EP2432570B1
EP2432570B1 EP10720546.0A EP10720546A EP2432570B1 EP 2432570 B1 EP2432570 B1 EP 2432570B1 EP 10720546 A EP10720546 A EP 10720546A EP 2432570 B1 EP2432570 B1 EP 2432570B1
Authority
EP
European Patent Office
Prior art keywords
panel
panels
ball
layer
base material
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.)
Not-in-force
Application number
EP10720546.0A
Other languages
German (de)
English (en)
Other versions
EP2432570A1 (fr
Inventor
Roy William Bulfin
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.)
Puma SE
Original Assignee
Puma SE
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Filing date
Publication date
Application filed by Puma SE filed Critical Puma SE
Publication of EP2432570A1 publication Critical patent/EP2432570A1/fr
Application granted granted Critical
Publication of EP2432570B1 publication Critical patent/EP2432570B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B45/00—Apparatus or methods for manufacturing balls
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B41/00—Hollow inflatable balls
    • A63B41/08—Ball covers; Closures therefor
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2243/00—Specific ball sports not provided for in A63B2102/00 - A63B2102/38
    • A63B2243/0025—Football
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1039—Surface deformation only of sandwich or lamina [e.g., embossed panels]
    • Y10T156/1041—Subsequent to lamination
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1043—Subsequent to assembly

Definitions

  • the invention relates to a method for producing a ball, in particular a football, comprising the steps of: a) producing a planar, planar base material which is constructed with at least two layers and has a cover layer and at least one underlying material layer; b) cutting out panels of desired shape from the base material; c) applying the panels to a carrier body, in particular to a ball bladder. Furthermore, the invention relates to a ball, in particular a football.
  • each panel is formed cup-shaped in section by a deep-drawing process, wherein the lateral surfaces of the cup-shaped structure are joined together.
  • the panels have a high in their edge area Strength.
  • the JP 58215335 A discloses a ball whose surface is also covered with panels.
  • the panels are formed in their edge region, but here have a concave structure.
  • the US 2006/0068951 A1 and the FR 4 443 850 A1 show a ball whose surface is formed by a number of glued panels.
  • the invention is therefore an object of the invention to provide a method of the type mentioned and a ball, with which it is possible to achieve a constant spring constant or hardness over the Ballober Design when the ball - as is the classic stress situation, for example a shot at football corresponds - is acted upon with a normal force acting on the Ballober Technology force.
  • the process should allow a simple and thus economical production of the ball.
  • the solution of this problem by the invention according to the method is characterized in that before, during or after the cutting out of panels desired shape from the base material, at least a heating of the edge region of the panels and reshaping of the edge region is carried out such that the covered by the cover layer side of the Panels in the edge region assumes a convex, ie rounded shape, wherein the convex shape to the surface of the panels between the edge regions continuously adjoins and the outlet angle of the panels to the surface of the panels between 20 ° and 60 °.
  • the cutting out of the panels takes place simultaneously with the heating and forming of the panels.
  • the heating of the panels is preferably carried out by applying a high-frequency electromagnetic radiation to the base material.
  • the forming of the panels is preferably carried out by embossing, in which an embossing tool is pressed onto the surface of the base material.
  • the application of the panels on the carrier body can be done by gluing, so that the edge regions of adjacent panels adjoin one another.
  • the panels applied to the carrier body are preferably not sewn together. It is then a seamless ball, which is produced by the process.
  • thermoplastic plastic material may be used. At least one layer of the base material may use a thermoplastic polyurethane material.
  • the proposed ball in particular the football, has a ball cover of a number of panels, wherein the panels are mounted on a support body. It is distinguished according to the invention in that the panels consist of a flat, flat base material which is constructed with at least two layers and a cover layer and at least one underlying material layer, wherein the covered by the cover layer side of the panels in the edge region of the panels a having convex shape, wherein the convex shape to the surface of the panels between the edge regions continuously adjoins and the outlet angle of the panels to the surface of the panels between 20 ° and 60 °.
  • the convexity of the panels is preferably over a marginal stretch, which is between 3% and 20% of the width of the panels, preferably between 5% and 15% of the width of the panels.
  • the thickness of the panels can be reduced by the convexity of the panels by a value at the edge of the panels, which is between 80% and 20% of the thickness of the panels, preferably between 70% and 35% of the thickness of the panels.
  • the outlet angle of the panels to the surface of the panels is preferably between 25 ° and 35 °.
  • At least one layer of the base material is preferably a thermoplastic material. At least one layer of the base material is preferably a thermoplastic polyurethane material.
  • the base material is preferably an at least three-layer composite, wherein this has an upper skin layer of aliphatic polyurethane, an underlying layer of non-foamed polyurethane and at least one layer of foamed polyurethane arranged underneath.
  • at least two layers of foamed polyurethane can be arranged one above the other, whereby they are foamed to different degrees. It has proven particularly useful if at least one of the layers consists of water-based polyurethane foam.
  • a football 1 is shown as it is constructed in a classical way.
  • a support body in the form of a ball bladder - itself in Fig. 1 is not visible - panels 8 are applied.
  • These panels have either pentagonal shape (see Pentagone 15) or hexagonal shape (see Hexagone 16), which are arranged in the known manner to each other.
  • the panels 8 adjoin one another, resulting in seams 13. It is essential here that the panels are glued to the carrier body 9, wherein they are not sewn together. So football 1 is seamless.
  • the individual panels 8 are cut out of a flat base material 2, which in Fig. 2 is shown schematically.
  • the base material 2 has five layers, ie it has five superimposed layers 3, 4, 5, 6 and 7, wherein the uppermost layer 3 is a thin cover layer.
  • the base material can be produced as a multi-layer composite in a manufacturing process, so that it is not necessary to manufacture the individual layers separately and to glue them together.
  • a five-layer structure of the base material mention may be made of the following: Five layers of polyurethane are used, three of which have a foamed structure.
  • the top layer (cover layer) 3 is made of an aliphatic polyurethane and is used to achieve good light resistance, i. In particular, it should be prevented that white colors become yellowish in the sunlight.
  • Two types of aliphatic polyurethanes can be used: the first type has a polyol with a polycarbonate structure. This provides good resistance to hydrolysis and also good lightfastness. The other type has a higher modulus, which ensures a good abrasion resistance. The combination of both types creates a ball surface with good physical properties.
  • the first layer 3 is relatively thin and may have a thickness of 0.01 to 0.05 mm, preferably 0.03 mm. The density of this layer is between 1.1 and 1.3 g / cm 3 , preferably 1.2 g / cm 3 .
  • the second layer 4 consists of a higher density aliphatic polyurethane. Again, the light resistance and the resistance to hydrolysis and abrasion are high or good. This polyurethane has one lower modulus than the above components of the layer 3, which is why the material of the second layer 4 is softer. This improves the "holding properties" of the ball, but does not adversely affect the impact property of the ball.
  • the second layer may have a thickness of 0.1 to 0.3 mm, preferably 0.2 mm. The density is lower than that of the first layer and is between 1.0 and 1.2 g / cm 3 , preferably 1.1 g / cm 3 .
  • the third layer 5 is a layer using a blend of polyester and polyether-based polyurethane.
  • a foamed structure is used, which is produced with the addition of a chemical blowing agent.
  • the foam has a well-distributed, uniform bubble structure with regularly formed micro cells.
  • two types of solid polyurethane are used. One is a polyether type with very good elastic properties and in turn favorable hydrolysis property. The other type is a polyester, but with a very soft module. The combination of these types provides a good grip of the ball, but it is also maintained a favorable impact property.
  • the fourth layer 6 employs an aliphatic water-based polyurethane foam. Again, the material has very good physical properties, in particular high hydrolysis resistance.
  • the foam is presently obtained not by the addition of a chemical blowing agent, but by mechanical treatment with further addition of additives to produce a foamed film.
  • the fifth and bottom layer 7 is very similar to the fourth layer 6, which in turn is a water-based polyurethane foam layer.
  • the degree of foaming is the degree of foaming. Because both layers are mechanically foamed, the density of the foam can be affected. Since the density of the foam has an influence on the grip of the ball, the properties of the ball can be influenced to this extent, without changing the impact properties. Importantly, the density of the foam can be adjusted to accommodate a variety of energy absorption, allowing the energy output of the ball during firing to be controlled while maintaining ball controllability.
  • the foam layers have a thickness between 0.6 mm and 3.0 mm, preferably 0.8 mm (layer 6) and 2.7 mm (layer 7).
  • the density is between 0.15 and 0.8 g / cm 3 , preferably 0.6 g / cm 3 (layer 6) and 0.3 g / cm 3 (layer 7).
  • thermoplastic properties If all the layers of the base material have thermoplastic properties, the production of the panels described below is possible in a particularly advantageous manner using high-frequency electromagnetic radiation, as it is used for high-frequency welding and is known.
  • the individual panels 8 are punched out of the base material 2 with an embossing tool 12 and formed by this, as shown in the FIGS. 3 and 4 is indicated schematically.
  • the embossing tool 12 has a forming surface 17, which is pressed onto the surface of the base material 2 in the manufacture of the panels and which, in any event, forms on the base material insofar as it can be subjected to thermoplastic deformation.
  • the embossing tool 12 also has edge-like edges 18 in its lateral peripheral area, which can cut out or punch out a piece of the flat base material 2, as it corresponds to the desired shape of the panels (ie in particular a pentagonal or hexagonal shape; other forms for the panels conceivable).
  • the edge region of the embossing tool 12 is - corresponding to the edge region 10 of the panels to be manufactured 8 - provided with a high frequency exciter 19, as he, however, in the FIGS. 3 and 4 only indicated very schematically.
  • a high frequency exciter it is for example possible to introduce a high frequency power of about 2,500 W for about 2 seconds in the base material 2, wherein on the base material, a pressure of about 50 bar is exerted by the embossing tool 12.
  • the pressure is generated by the exercise of a force F in the in the FIGS. 3 and 4 indicated manner. This has the consequence that the base material is heated so that a thermoplastic deformation process can be triggered.
  • the parameters for the intensity and duration of the high-frequency application are carried out so that no damage to the material occurs.
  • thermoplastic forming process is carried out simultaneously with the fact that the edges 18 cut out the desired panel shape of the base material (punching).
  • the obtained panels 8 is seen laterally in the sectional view in Fig. 5 to recognize, for the sake of clarity, only two layers are indicated, which make up the material of the panels.
  • the panel 8 is provided with a constant thickness over the entire width B 0 of the panels 8, apart from the edge extension B R , in which the convex shape 1 causes the panel thickness to be reduced.
  • the thickness of the panels D 0 in the edge region 10 decreases to the edge by a decrease in thickness ⁇ D.
  • the surface 14 of the panels runs in the region of the convex shape 11 under a tangentially measured outlet angle ⁇ .
  • the panels produced in this way are according to Fig. 6 on the ball bladder 9 (which is understood here also the carcass) glued so that the panels 8 at the seams 13 abut each other.
  • the ball bladder is produced in a known manner.
  • a carcass is made from polyester-upper cotton fabrics and sewn. In this then a bubble is used.
  • the surface may be provided with a layer of latex adhesive.
  • the panels can then be placed in a mold with corresponding recesses for the panels, whereupon the prepared carcass is placed in the mold and the mold is closed, whereupon the bladder is inflated. After the process, the ball can be tested.
  • the ball thus produced is largely waterproof.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Laminated Bodies (AREA)

Claims (15)

  1. Procédé pour fabriquer un ballon (1), en particulier un ballon de football, qui présente les étapes suivantes :
    a) fabriquer un matériau de base plan et plat (2), qui est composé d'au moins deux couches (3, 4, 5, 6, 7) et qui présente une couche de recouvrement (3) et au moins une couche de matière (4, 5, 6, 7) située sous celle-ci ;
    b) découper des panneaux (8) de la forme souhaitée dans le matériau de base (2) ;
    c) appliquer les panneaux (8) sur un corps de support (9), en particulier sur une vessie de ballon,
    caractérisé en ce que
    avant, pendant ou après l'étape b), on effectue un chauffage au moins de la région de bord (10) du panneau (8) et une déformation de la région de bord (10) de telle manière que le côté du panneau (8) couvert par la couche de recouvrement (3) prenne dans la région de bord (10) une forme convexe (11), dans lequel la forme convexe (11) se raccorde en continu à la surface (14) du panneau (8) entre les régions de bord (10) et l'angle de terminaison (α) du panneau (8) par rapport à la surface (14) du panneau (8) se situe entre 20° et 60°.
  2. Procédé selon la revendication 1, caractérisé en ce que l'angle de terminaison (α) du panneau (8) par rapport à la surface (14) du panneau (8) se situe entre 25° et 35°.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le découpage du panneau (8) selon l'étape b) de la revendication 1 est effectué en même temps que le chauffage et la déformation du panneau (8).
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le chauffage du panneau (8) est effectué par application d'un rayonnement électromagnétique à haute fréquence au matériau de base (2).
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la déformation du panneau (8) est effectuée par gaufrage, dans lequel on presse un outil de gaufrage (12) sur la surface du matériau de base (2).
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'application des panneaux (8) sur le corps de support (9), en particulier sur la vessie de ballon, est effectuée par collage, de telle manière que les régions de bord (10) de panneaux voisins (8) soient adjacentes l'une à l'autre.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les panneaux (8) appliqués sur le corps de support (9) ne sont pas cousus l'un à l'autre.
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce que l'on utilise au moins pour une couche (3, 4, 5, 6, 7) du matériau de base (2) une matière plastique thermoplastique, en particulier un matériau de polyuréthane thermoplastique.
  9. Ballon (1), en particulier ballon de football, qui comprend une enveloppe de ballon composée de plusieurs panneaux (8), dans lequel les panneaux (8) sont appliqués sur un corps de support (9), en particulier sur une vessie de ballon, caractérisé en ce que, avant l'application sur le corps de support, les panneaux (8) sont constitués d'un matériau de base plan et plat (2), qui se compose d'au moins deux couches et qui présente une couche de recouvrement (3) et au moins une couche de matière (4, 5, 6, 7) située sous celle-ci, dans lequel le côté du panneau (8) couvert par la couche de recouvrement (3) présente dans la région de bord (10) du panneau (8) une forme convexe (11), dans lequel la forme convexe (11) se raccorde en continu à la surface (14) du panneau (8) entre les régions de bord (10) et l'angle de terminaison (α) du panneau (8) par rapport à la surface (14) du panneau (8) se situe entre 20° et 60°.
  10. Ballon selon la revendication 9, caractérisé en ce que la déformation convexe (11) du panneau (8) est présente sur une extension du bord (BE), qui se situe entre 3 % et 20 % de la largeur (B0) du panneau (8), de préférence entre 5 % et 15 % de la largeur (BC) du panneau (8).
  11. Ballon selon la revendication 9 ou 10, caractérisé en ce que l'épaisseur (D0) du panneau (8) diminue au bord du panneau (8), en raison de la déformation convexe (11) du panneau (8), d'une valeur (ΔD) qui vaut entre 80 % et 20 % de l'épaisseur (D0) du panneau (8).
  12. Ballon selon l'une quelconque des revendications 9 à 11, caractérisé en ce que les panneaux (8) sont collés sur le corps de support (9), en particulier sur la vessie de ballon.
  13. Ballon selon l'une quelconque des revendications 9 à 12, caractérisé en ce qu'au moins une couche (3, 4, 5, 6, 7) du matériau de base (2) est une matière plastique thermoplastique, en particulier un matériau de polyuréthane thermoplastique.
  14. Ballon selon l'une quelconque des revendications 9 à 13, caractérisé en ce que le matériau de base (2) est un composite en au moins trois couches, dans lequel celui-ci comprend une couche de peau supérieure (3) en polyuréthane aliphatique, une couche sous-jacente (4) en polyuréthane non expansé et au moins une couche encore sous-jacente (5, 6, 7) en polyuréthane expansé, dans lequel en particulier au moins deux couches (5, 6, 7) en polyuréthane expansé sont disposées l'une au-dessus de l'autre, celles-ci étant expansées à des niveaux d'intensité différents.
  15. Ballon selon la revendication 14, caractérisé en ce qu'au moins une des couches (6, 7) se compose de mousse de polyuréthane à base d'eau.
EP10720546.0A 2009-05-20 2010-05-10 Procédé pour fabriquer un ballon et ballon Not-in-force EP2432570B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009022252.9A DE102009022252B4 (de) 2009-05-20 2009-05-20 Verfahren zum Herstellen eines Balls und Ball
PCT/EP2010/002850 WO2010133305A1 (fr) 2009-05-20 2010-05-10 Procédé pour fabriquer un ballon et ballon

Publications (2)

Publication Number Publication Date
EP2432570A1 EP2432570A1 (fr) 2012-03-28
EP2432570B1 true EP2432570B1 (fr) 2013-08-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10720546.0A Not-in-force EP2432570B1 (fr) 2009-05-20 2010-05-10 Procédé pour fabriquer un ballon et ballon

Country Status (6)

Country Link
US (1) US8382619B2 (fr)
EP (1) EP2432570B1 (fr)
JP (1) JP2012527260A (fr)
CN (1) CN102427856B (fr)
DE (1) DE102009022252B4 (fr)
WO (1) WO2010133305A1 (fr)

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JP2717927B2 (ja) * 1993-12-28 1998-02-25 タチカラ株式会社 運動用ボールとその製造方法
DE19738891A1 (de) * 1997-09-05 1999-03-11 Saga Sports Pvt Ltd Obermaterial für die Hülle eines Balles
US6302815B1 (en) * 1997-09-22 2001-10-16 Molten Corporation Ball for a ball game
US6206795B1 (en) * 1999-07-28 2001-03-27 Tsung Ming Ou Basketball with cushion layers
DE10255092B4 (de) * 2002-11-26 2010-11-11 Molten Corp. Verfahren zur Herstellung von Teilstücken eines Balls
US6726583B1 (en) * 2003-02-13 2004-04-27 Ye Gin Enterprise, Co., Ltd. Game ball
WO2005070179A2 (fr) * 2004-01-09 2005-08-04 Sgg Patents Llc Ballon de sport et son procede de fabrication
CN2707318Y (zh) * 2004-05-11 2005-07-06 姚文中 一种新颖的胶粘运动球
CN1739826B (zh) * 2004-08-25 2014-11-19 唐雅芳 一种皮革球片的制造方法
US7066853B2 (en) * 2004-09-30 2006-06-27 Yen-Li Chang Method for manufacturing an inflatable ball and a ball made with the method
US20060199685A1 (en) * 2005-03-03 2006-09-07 Ou Tsung M Machine laminated basketball
US20070037642A1 (en) * 2005-08-11 2007-02-15 Yen-Li Chang Ball with an improved bladder carcass securely engaging with multiple cover panels
US7837581B2 (en) * 2006-12-11 2010-11-23 Tsing Ming Ou Sports ball
CN200995038Y (zh) * 2007-01-18 2007-12-26 汪久全 无缝热粘合比赛足球
JP2009006052A (ja) * 2007-06-29 2009-01-15 Molten Corp ボール
US8900077B2 (en) * 2008-02-19 2014-12-02 Topball Sports Inc. Sportsball with integral ball casing and bladder body
CN201211417Y (zh) * 2008-06-03 2009-03-25 中外运动器材(泰国)股份有限公司 球体表面层的贴合片
CN201216842Y (zh) * 2008-06-28 2009-04-08 川越运动工业(肇庆)有限公司 一种胶粘运动球
US20090325747A1 (en) * 2008-06-30 2009-12-31 Tsung Ming Ou Stitchless seam arrangement of sportsball and manufacturing method thereof

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WO2010133305A1 (fr) 2010-11-25
EP2432570A1 (fr) 2012-03-28
US20120088614A1 (en) 2012-04-12
DE102009022252B4 (de) 2014-12-18
JP2012527260A (ja) 2012-11-08
US8382619B2 (en) 2013-02-26
CN102427856A (zh) 2012-04-25
CN102427856B (zh) 2014-08-13
DE102009022252A1 (de) 2010-12-16

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