EP2714210A1 - Ball, particularly for basketball practice, and corresponding manufacture method - Google Patents

Ball, particularly for basketball practice, and corresponding manufacture method

Info

Publication number
EP2714210A1
EP2714210A1 EP11741646.1A EP11741646A EP2714210A1 EP 2714210 A1 EP2714210 A1 EP 2714210A1 EP 11741646 A EP11741646 A EP 11741646A EP 2714210 A1 EP2714210 A1 EP 2714210A1
Authority
EP
European Patent Office
Prior art keywords
flexible
outer panels
inflatable bladder
wound
strips
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.)
Granted
Application number
EP11741646.1A
Other languages
German (de)
French (fr)
Other versions
EP2714210B1 (en
Inventor
Thomas BAILLON
Ming-Chih Wang
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.)
Decathlon SE
Original Assignee
Decathlon SE
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 Decathlon SE filed Critical Decathlon SE
Publication of EP2714210A1 publication Critical patent/EP2714210A1/en
Application granted granted Critical
Publication of EP2714210B1 publication Critical patent/EP2714210B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • A63B41/10—Bladder and cover united
    • 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
    • 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
    • A63B2208/00—Characteristics or parameters related to the user or player
    • A63B2208/12—Characteristics or parameters related to the user or player specially adapted for children
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/62—Inflatable
    • 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
    • A63B2243/0037—Basketball
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/0071—Training appliances or apparatus for special sports for basketball
    • 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
    • Y10T156/1089—Methods of surface bonding and/or assembly therefor of discrete laminae to single face of additional lamina

Definitions

  • the subject of the invention is a balloon and its method of manufacture. It is particularly applicable in the field of basketballs.
  • Balls such as those used for basketball, are often too heavy and / or too hard for beginners to quickly enjoy the sport.
  • vulcanized elastomer layer On top of the vulcanized elastomer layer, in which the winding of flexible wires is embedded, is placed an outer coating formed of panels. These panels are separated by ridges formed in the elastomeric layer during vulcanization.
  • Such a balloon comprising a rubber carcass or the like obtained by vulcanization is particularly rigid.
  • contact with the hands can be painful, especially for children, because of this rigidity and hardness.
  • the invention therefore aims to solve the aforementioned problems, among other problems.
  • the invention thus relates to a balloon, and its manufacturing method, allowing the practice of a sport such as basketball by improving the sensations for the user.
  • the balloon according to the invention particularly adapted to the practice of basketball, comprises an inflatable bladder at least partially covered with one or more flexible elongated elements wound on the surface of the inflatable bladder.
  • the balloon also comprises an outer coating comprising at least two outer panels separated by at least one strip of elastomeric material.
  • the outer panels and the band or strips are arranged directly on the flexible elongated elements or wound.
  • the balloon according to the invention does not comprise an intermediate layer of vulcanized elastomeric material.
  • the balloon is less rigid and lighter, allowing users, such as children, to be less painful when they receive the ball in their hands, and to throw the ball more easily or even further.
  • the band or bands cover at most 50% of the surface of the balloon.
  • the outer panels comprise a first layer of flexible plastic material, for example polyurethane or polyvinyl chloride.
  • the outer panels comprise a second fabric layer, preferably oriented towards the wound flexible elongate element or elements.
  • the flexible elongate wound element or elements comprise flexible wires.
  • These flexible yarns can be made of synthetic material, such as nylon.
  • the flexible or elongated wound elements comprise flexible fabric strips.
  • These flexible fabric strips can be made of synthetic fabric.
  • the manufacturing method notably consists in covering at least partially an inflatable bladder with one or more flexible elongated elements wound on the surface of the inflatable bladder, and in setting up a outer coating comprising at least two outer panels separated by at least one strip of elastomeric material.
  • the placing of the outer coating is obtained by arranging the outer panels and the strip or strips directly on the flexible elongated elements or coiled.
  • the strips are arranged so that they cover at most 50% of the surface of the balloon.
  • the outer panels are made from a first layer of flexible plastic material, for example polyurethane or polyvinyl chloride.
  • a second layer of fabric can be glued under the first layer.
  • this or these strips are arranged in the bottom of a mold in which the inflatable bladder, at least partially covered with the flexible or elongated wound elements, is placed.
  • the inflatable bladder is pressurized, then the assembly is heated, so as to obtain the vulcanization of the band or bands.
  • the external panels are cut in the appropriate material and these external panels are glued in such a way as to adjacent to the previously arranged strip or strips.
  • the flexible elongated element (s) are passed through a bath of glue, the inflatable bladder is placed in contact with the flexible elongated element (s), and the inflatable bladder is rotated so as to obtain the winding of the flexible elongated element (s) around the inflatable bladder.
  • FIG. 1 schematically represents the manufacturing method according to the invention
  • Figure 2 shows schematically the balloon according to the invention, before introduction of the outer panels.
  • the method shown in Figure 1 consists in particular to use an inflatable bladder 1, which is effectively inflated, as shown in (A).
  • the elongated element (s) 2 may also be strips of fabric, for example made of nylon.
  • these strips 4 of elastomeric material such as rubber are placed in the bottom of two half-molds.
  • the bladder 1 with the coil 2, as shown in (B) is placed in the half-molds closed in a single mold. Then, the bladder 1 is pressurized, and a heating step is implemented to obtain the vulcanization of the elastomer of the strips 4.
  • Figure 2 shows in more detail the result of the step of placing the elastomer strips 4 shown in Figure 1 in (C), and described above.
  • the outer panels 3 separated by the strip or strips 4 which are flush with the surface, are therefore part of the outer coating of the balloon.
  • the outer panels 3 may be made of a layer of flexible plastic material, such as polyurethane or polyvinyl chloride.
  • an additional fabric layer is provided, preferably to be oriented towards the winding 2 and therefore towards the bladder 1.
  • the outer panels 3 are cut to the desired dimensions and, when they comprise only the layer of flexible plastic material, are glued laminated on the bladder 1 surrounded by the coil 2, adjacent to the band or strips 4.
  • the outer panels 3 also comprise the fabric layer, this layer of fabric is previously bonded to one of the faces of the outer panels 3, with pressing of the two layers between two rollers.
  • the surface of the carcass of the balloon or the balloon itself, covered by the strips 4 of elastomeric material is at most equal to 50% of the total surface area.
  • the amount of elastomer used is therefore much lower with a balloon according to the invention compared to a balloon of the state of the art. It follows that the weight of the ball is reduced. The weight reduction depends on the size of the balloon and can reach 100 g.
  • the feeling of hard contact on receipt of the balloon is reduced, since the hardest and stiffest parts correspond to the zones in which the strips 4 of vulcanized elastomeric material are arranged, and are reduced.
  • the invention is not limited to the manufacture of a basketball at exactly three strips 4 of elastomeric material and exactly four external panels 3.

Abstract

The invention relates to a ball, particularly for basketball practice, and to the method for manufacturing same. The ball includes an inflatable bladder (1) covered with one or more flexible elongate elements (2) wound around the surface of the bladder. The ball also includes an outer covering comprising at least two outer panels (3) separated by at least one strip (4) of elastomeric material. The outer panels and the strip(s) are placed directly onto the wound flexible elongate element(s). The manufacture method particularly involves covering the inflatable bladder with the flexible elongate element(s) wound on the surface of the bladder, and placing the outer covering, including the outer panels separated by the strip(s) of elastomeric material. The placement of the outer covering is achieved by placing the outer panels and the strip(s) directly onto the wound flexible elongate element(s). Thus, the ball is less rigid and lighter, enabling users, such as children, to feel less pain when catching the ball with the hands, and to shoot the ball more easily and farther.

Description

BALLON, NOTAMMENT POUR LA PRATIQUE DU BASKET-BALL, ET PROCEDE DE FABRICATION CORRESPONDANT  BALLOON, IN PARTICULAR FOR THE PRACTICE OF THE BASKETBALL, AND METHOD OF MANUFACTURING THE SAME
L'invention a pour objet un ballon et son procédé de fabrication. Elle trouve tout particulièrement une application dans le domaine des ballons de basket-ball. The subject of the invention is a balloon and its method of manufacture. It is particularly applicable in the field of basketballs.
Les ballons, tels ceux utilisés pour la pratique du basket-ball, sont souvent trop lourds et/ou trop durs pour permettre aux débutants de prendre rapidement du plaisir à la pratique de ce sport.  Balls, such as those used for basketball, are often too heavy and / or too hard for beginners to quickly enjoy the sport.
Ces inconvénients sont notamment liés au procédé de fabrication et aux matériaux utilisés pour la fabrication.  These disadvantages are particularly related to the manufacturing process and the materials used for manufacturing.
Plus précisément, on connaît, par exemple du document US 1 102 644, un ballon comprenant une vessie gonflable recouverte d'un bobinage de fils souples noyée dans une couche d'élastomère qui subit une vulcanisation.  More specifically, there is known, for example from US 1,102,644, a balloon comprising an inflatable bladder covered with a coil of flexible son embedded in an elastomer layer which undergoes vulcanization.
Par-dessus la couche d'élastomère vulcanisée, dans laquelle est noyé le bobinage de fils souples, est disposé un revêtement externe formé de panneaux. Ces panneaux sont séparés par des arêtes formées dans la couche en élastomère lors de la vulcanisation.  On top of the vulcanized elastomer layer, in which the winding of flexible wires is embedded, is placed an outer coating formed of panels. These panels are separated by ridges formed in the elastomeric layer during vulcanization.
Un tel ballon comprenant une carcasse en caoutchouc ou similaire, obtenue par vulcanisation, est particulièrement rigide. Lors de la pratique d'un jeu avec un tel ballon, le contact avec les mains peut être douloureux, en particulier pour les enfants, en raison de cette rigidité et dureté.  Such a balloon comprising a rubber carcass or the like obtained by vulcanization is particularly rigid. When practicing a game with such a ball, contact with the hands can be painful, especially for children, because of this rigidity and hardness.
L'invention a donc pour objet de résoudre les problèmes précités, parmi d'autres problèmes.  The invention therefore aims to solve the aforementioned problems, among other problems.
L'invention se rapporte ainsi à un ballon, et son procédé de fabrication, permettant la pratique d'un sport tel que le basket-ball en améliorant les sensations pour l'utilisateur.  The invention thus relates to a balloon, and its manufacturing method, allowing the practice of a sport such as basketball by improving the sensations for the user.
Le ballon selon l'invention, particulièrement adapté à la pratique du basket-ball, comprend une vessie gonflable recouverte au moins partiellement d'un ou plusieurs éléments longilignes souples bobinés sur la surface de la vessie gonflable. Le ballon comprend également un revêtement externe comportant au moins deux panneaux externes séparés par au moins une bande en matériau élastomère. The balloon according to the invention, particularly adapted to the practice of basketball, comprises an inflatable bladder at least partially covered with one or more flexible elongated elements wound on the surface of the inflatable bladder. The balloon also comprises an outer coating comprising at least two outer panels separated by at least one strip of elastomeric material.
Les panneaux externes et la ou les bandes sont disposés directement sur le ou les éléments longilignes souples bobinés.  The outer panels and the band or strips are arranged directly on the flexible elongated elements or wound.
Ainsi, le ballon selon l'invention ne comprend pas de couche intermédiaire en matériau élastomère vulcanisée. En conséquence, le ballon est moins rigide et plus léger, ce qui permet aux utilisateurs, tels des enfants, de se faire moins mal lorsqu'ils reçoivent le ballon dans les mains, et de lancer le ballon plus facilement, voire plus loin.  Thus, the balloon according to the invention does not comprise an intermediate layer of vulcanized elastomeric material. As a result, the balloon is less rigid and lighter, allowing users, such as children, to be less painful when they receive the ball in their hands, and to throw the ball more easily or even further.
Dans une première variante de réalisation, la ou les bandes recouvrent au maximum 50% de la surface du ballon.  In a first embodiment, the band or bands cover at most 50% of the surface of the balloon.
Dans une deuxième variante de réalisation, éventuellement en combinaison avec la première, les panneaux externes comprennent une première couche en matériau plastique souple, par exemple en polyuréthane ou en en polychlorure de vinyle.  In a second variant embodiment, possibly in combination with the first, the outer panels comprise a first layer of flexible plastic material, for example polyurethane or polyvinyl chloride.
Dans une troisième variante de réalisation, éventuellement en combinaison avec une ou plusieurs des précédentes, les panneaux externes comprennent une deuxième couche en tissu, de préférence orientée vers le ou les éléments longilignes souples bobinés.  In a third variant embodiment, possibly in combination with one or more of the preceding embodiments, the outer panels comprise a second fabric layer, preferably oriented towards the wound flexible elongate element or elements.
Dans une quatrième variante de réalisation, éventuellement en combinaison avec une ou plusieurs des précédentes, le ou les éléments longilignes souples bobinés comprennent des fils souples.  In a fourth variant embodiment, possibly in combination with one or more of the preceding embodiments, the flexible elongate wound element or elements comprise flexible wires.
Ces fils souples peuvent être en matériau synthétique, tel que du nylon. These flexible yarns can be made of synthetic material, such as nylon.
Dans une cinquième variante de réalisation, éventuellement en combinaison avec une ou plusieurs des précédentes, le ou les éléments longilignes souples bobinés comprennent des bandes de tissu souples. In a fifth variant embodiment, possibly in combination with one or more of the preceding embodiments, the flexible or elongated wound elements comprise flexible fabric strips.
Ces bandes de tissu souples peuvent être en tissu synthétique.  These flexible fabric strips can be made of synthetic fabric.
Par ailleurs, le procédé de fabrication consiste notamment à recouvrir au moins partiellement une vessie gonflable d'un ou plusieurs éléments longilignes souples bobinés sur la surface de la vessie gonflable, et à mettre en place un revêtement externe comprenant au moins deux panneaux externes séparés par au moins une bande en matériau élastomère. Furthermore, the manufacturing method notably consists in covering at least partially an inflatable bladder with one or more flexible elongated elements wound on the surface of the inflatable bladder, and in setting up a outer coating comprising at least two outer panels separated by at least one strip of elastomeric material.
La mise en place du revêtement externe est obtenue en disposant les panneaux externes et la ou les bandes directement sur le ou les éléments longilignes souples bobinés.  The placing of the outer coating is obtained by arranging the outer panels and the strip or strips directly on the flexible elongated elements or coiled.
Dans une première variante de mise en œuvre, les bandes sont disposées en sorte qu'elles recouvrent au maximum 50% de la surface du ballon.  In a first implementation variant, the strips are arranged so that they cover at most 50% of the surface of the balloon.
Dans une deuxième variante de mise en œuvre, éventuellement en combinaison avec la précédente, les panneaux externes sont réalisés à partir d'une première couche en matériau plastique souple, par exemple en polyuréthane ou en en polychlorure de vinyle.  In a second implementation variant, possibly in combination with the previous one, the outer panels are made from a first layer of flexible plastic material, for example polyurethane or polyvinyl chloride.
Une deuxième couche en tissu peut être collée sous la première couche. A second layer of fabric can be glued under the first layer.
Dans une troisième variante de mise en œuvre, éventuellement en combinaison avec une ou plusieurs des précédentes, pour disposer la ou les bandes directement sur le ou les éléments longilignes bobinés, on dispose cette ou ces bandes dans le fond d'un moule dans lequel la vessie gonflable, recouverte au moins partiellement du ou des éléments longilignes souples bobinés, est placée. In a third variant of implementation, possibly in combination with one or more of the preceding, for arranging the strip or bands directly on the wound elongated element or elements, this or these strips are arranged in the bottom of a mold in which the inflatable bladder, at least partially covered with the flexible or elongated wound elements, is placed.
Ensuite, la vessie gonflable est mise sous-pression, puis l'ensemble est chauffé, en sorte d'obtenir la vulcanisation de la ou des bandes.  Then, the inflatable bladder is pressurized, then the assembly is heated, so as to obtain the vulcanization of the band or bands.
Dans une quatrième variante de mise en œuvre, éventuellement en combinaison avec une ou plusieurs des précédentes, pour disposer les panneaux externes directement sur le ou les éléments longilignes bobinés, on découpe les panneaux externes dans le matériau approprié et on colle ces panneaux externes de façon adjacente à la ou aux bandes préalablement disposées.  In a fourth variant of implementation, possibly in combination with one or more of the preceding, for arranging the external panels directly on the elongated wound elements or elements, the external panels are cut in the appropriate material and these external panels are glued in such a way as to adjacent to the previously arranged strip or strips.
Dans une cinquième variante de mise en œuvre, éventuellement en combinaison avec une ou plusieurs des précédentes, pour recouvrir au moins partiellement la vessie gonflable du ou des éléments longilignes souples bobinés, on fait passer le ou les éléments longilignes souples dans un bain de colle, on place la vessie gonflable au contact du ou des éléments longilignes souples, et on fait tourner la vessie gonflable en sorte d'obtenir le bobinage du ou des éléments longilignes souples autour de la vessie gonflable. In a fifth variant embodiment, possibly in combination with one or more of the preceding embodiments, for at least partially covering the inflatable bladder or the coiled flexible elongated elements, the flexible elongated element (s) are passed through a bath of glue, the inflatable bladder is placed in contact with the flexible elongated element (s), and the inflatable bladder is rotated so as to obtain the winding of the flexible elongated element (s) around the inflatable bladder.
D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement et de manière complète à la lecture de la description ci-après des variantes préférées de réalisation et de mise en œuvre, lesquelles sont données à titre d'exemples non limitatifs et en référence aux dessins annexés suivants :  Other features and advantages of the invention will appear more clearly and completely on reading the following description of the preferred embodiments and implementations, which are given by way of non-limiting examples and with reference in the following appended drawings:
figure 1 : représente schématiquement le procédé de fabrication selon l'invention,  FIG. 1 schematically represents the manufacturing method according to the invention,
figure 2 : représente schématiquement le ballon selon l'invention, avant mise en place des panneaux externes.  Figure 2 shows schematically the balloon according to the invention, before introduction of the outer panels.
Le procédé représenté à la figure 1 consiste notamment à utiliser une vessie gonflable 1, qui est effectivement gonflée, tel que représenté en (A).  The method shown in Figure 1 consists in particular to use an inflatable bladder 1, which is effectively inflated, as shown in (A).
Ensuite, un bobinage d'un ou plusieurs éléments longilignes souples 2 est mis en place, enroulé autour de la vessie 1, en sorte de recouvrir au moins partiellement la surface de cette vessie 1, tel que représenté en (B).  Then, a winding of one or more flexible elongated elements 2 is put in place, wrapped around the bladder 1, so as to cover at least partially the surface of this bladder 1, as shown in (B).
Dans un mode de réalisation particulier, on peut par exemple disposer 3 fils 2, tels que des fils en nylon, préalablement passés dans un bain de colle, dans une machine dans laquelle est également placée la vessie 1, et qui fait tourner cette vessie 1 en sorte d'obtenir l'enroulement des fils 2 autour de cette vessie 1.  In a particular embodiment, it is possible, for example, to have three yarns 2, such as nylon yarns, previously passed through a bath of glue, in a machine in which the bladder 1 is also placed, and which makes this bladder 1 rotate. in order to obtain the winding of the son 2 around this bladder 1.
Le ou les éléments longilignes 2 peuvent également être des bandes de tissu, par exemple réalisées en nylon.  The elongated element (s) 2 may also be strips of fabric, for example made of nylon.
Une fois obtenu le bobinage du ou des éléments longilignes 2 autour de la vessie 1, on peut mettre en œuvre l'étape consistant à mettre en place la ou les bandes 4 en matériau élastomère, tel que représenté en (C).  Once the winding of the elongated element (s) 2 has been obtained around the bladder 1, it is possible to implement the step consisting of putting in place the strip (s) 4 of elastomeric material, as represented in (C).
Dans la variante représentée à la figure 1, dans la mesure où il est question d'un ballon de basket-ball, on met en place trois bandes 4. Une de ces bandes 4 forme un cercle correspondant à l'équateur du ballon, et une deuxième de ces bandes 4 forme également un cercle mais qui correspond à un méridien. Enfin, la troisième bande 4 forme, si on la développe à plat, une ellipse dont le grand axe est constitué par une portion de la première ou de la deuxième bande 4 également développée à plat. La troisième bande 4 coupe ainsi la première ou la deuxième bande 4 en deux points à proximité de l'une des deux intersections entre les première et deuxième bandes 4. In the variant shown in FIG. 1, to the extent that it is a question of a basketball, three strips 4 are put in place. One of these strips 4 forms a circle corresponding to the equator of the balloon, and a second of these bands 4 also forms a circle but which corresponds to a meridian. Finally, the third band 4 forms, if it is developed flat, a ellipse whose major axis is constituted by a portion of the first or the second band 4 also developed flat. The third band 4 thus intersects the first or the second band 4 at two points near one of the two intersections between the first and second bands 4.
Pour leur mise en place, ces bandes 4 en matériau élastomère, tel que du caoutchouc, sont placées dans le fond de deux demi-moules. La vessie 1 avec le bobinage 2, tel que représenté en (B), est placée dans les demi-moules refermés en un seul moule. Ensuite, la vessie 1 est mise sous pression, et une étape de chauffage est mise en œuvre pour obtenir la vulcanisation de Pélastomère des bandes 4.  For their implementation, these strips 4 of elastomeric material, such as rubber, are placed in the bottom of two half-molds. The bladder 1 with the coil 2, as shown in (B), is placed in the half-molds closed in a single mold. Then, the bladder 1 is pressurized, and a heating step is implemented to obtain the vulcanization of the elastomer of the strips 4.
La figure 2 représente plus en détail le résultat de l'étape de mise en place des bandes élastomère 4 représentée à la figure 1 en (C), et décrit précédemment.  Figure 2 shows in more detail the result of the step of placing the elastomer strips 4 shown in Figure 1 in (C), and described above.
Après la mise en place des bandes 4, on met en place plusieurs panneaux externes 3 directement à la surface du bobinage 2 pour obtenir le ballon représenté en (D).  After the positioning of the strips 4, several external panels 3 are placed directly on the surface of the coil 2 to obtain the balloon shown in (D).
Les panneaux externes 3 séparés par la ou les bandes 4 qui affleurent à la surface, font donc partie du revêtement externe du ballon.  The outer panels 3 separated by the strip or strips 4 which are flush with the surface, are therefore part of the outer coating of the balloon.
Dans l'exemple représenté à la figure 1, on a donc quatre panneaux externes 3 séparés par trois bandes 4 en matériau élastomère.  In the example shown in Figure 1, there are four external panels 3 separated by three strips 4 of elastomeric material.
Les panneaux externes 3 peuvent être constitués d'une couche en matériau plastique souple, comme du polyuréthane ou du polychlorure de vinyle.  The outer panels 3 may be made of a layer of flexible plastic material, such as polyurethane or polyvinyl chloride.
Eventuellement, une couche supplémentaire en tissu est disposée, en vue de préférence d'être orientée vers le bobinage 2 donc vers la vessie 1.  Optionally, an additional fabric layer is provided, preferably to be oriented towards the winding 2 and therefore towards the bladder 1.
Les panneaux externes 3 sont découpés aux dimensions voulues puis, lorsqu'ils comprennent uniquement la couche en matériau plastique souple, sont collés laminés sur la vessie 1 entourée du bobinage 2, de façon adjacente à la ou aux bandes 4. Lorsque les panneaux externes 3 comprennent également la couche de tissu, cette couche de tissu est préalablement collée sur l'une des faces des panneaux externes 3, avec pressage des deux couches entre deux rouleaux. The outer panels 3 are cut to the desired dimensions and, when they comprise only the layer of flexible plastic material, are glued laminated on the bladder 1 surrounded by the coil 2, adjacent to the band or strips 4. When the outer panels 3 also comprise the fabric layer, this layer of fabric is previously bonded to one of the faces of the outer panels 3, with pressing of the two layers between two rollers.
Ainsi, la surface de la carcasse du ballon ou du ballon lui-même, recouverte par les bandes 4 en matériau élastomère, est au maximum égale à 50% de la surface totale.  Thus, the surface of the carcass of the balloon or the balloon itself, covered by the strips 4 of elastomeric material, is at most equal to 50% of the total surface area.
En fait, dans le cas d'un ballon de basket-ball, tel qu'on peut le voir sur la figure 1, représentations (C) et (D), et sur la figure 2, cette surface recouverte par les bandes 4 en matériau élastomère est même inférieure ou égale à 10% de la surface totale.  In fact, in the case of a basketball, as can be seen in Figure 1, representations (C) and (D), and in Figure 2, this surface covered by the strips 4 in Elastomeric material is even less than or equal to 10% of the total area.
On voit donc que dans un ballon selon l'invention, il n'y a pas de couche d'élastomère recouvrant ou noyant le bobinage 2 à la surface de la vessie 1, mais seulement une série de bandes 4.  It can therefore be seen that in a flask according to the invention, there is no elastomer layer covering or embedding the winding 2 on the surface of the bladder 1, but only a series of strips 4.
La quantité d'élastomère utilisée est donc bien inférieure avec un ballon selon l'invention par rapport à un ballon de l'état de la technique. Il s'ensuit que le poids du ballon est réduit. La réduction de poids dépend de la taille du ballon et peut atteindre 100 g.  The amount of elastomer used is therefore much lower with a balloon according to the invention compared to a balloon of the state of the art. It follows that the weight of the ball is reduced. The weight reduction depends on the size of the balloon and can reach 100 g.
De plus, la sensation de contact dur à la réception du ballon est réduite, puisque les parties les plus dures et rigides correspondent aux zones en lesquelles sont disposées les bandes 4 en matériau élastomère vulcanisées, et sont réduites.  In addition, the feeling of hard contact on receipt of the balloon is reduced, since the hardest and stiffest parts correspond to the zones in which the strips 4 of vulcanized elastomeric material are arranged, and are reduced.
Il est précisé que l'ensemble de la description ci-dessus est donné à titre d'exemple, et n'est donc pas limitatif de l'invention.  It is specified that the whole of the description above is given by way of example, and is therefore not limitative of the invention.
En particulier, l'invention ne se limite pas à la fabrication d'un ballon de basket-ball à exactement trois bandes 4 en matériau élastomère et exactement quatre panneaux externes 3.  In particular, the invention is not limited to the manufacture of a basketball at exactly three strips 4 of elastomeric material and exactly four external panels 3.

Claims

REVENDICATIONS
1. Ballon, notamment pour la pratique du basket-ball, comprenant une vessie gonflable (1) recouverte au moins partiellement d'un ou plusieurs éléments longilignes souples (2) bobinés sur la surface de ladite vessie gonflable (1), ledit ballon comprenant également un revêtement externe comportant au moins deux panneaux externes (3) séparés par au moins une bande (4) en matériau élastomère, caractérisé en ce que les panneaux externes (3) et la ou les bandes (4) sont disposées directement sur le ou les éléments longilignes souples bobinés (2). Ball, especially for the practice of basketball, comprising an inflatable bladder (1) at least partially covered with one or more flexible elongated elements (2) wound on the surface of said inflatable bladder (1), said balloon comprising also an outer covering comprising at least two outer panels (3) separated by at least one strip (4) of elastomeric material, characterized in that the outer panels (3) and the strip or strips (4) are arranged directly on the or the flexible elongate wound elements (2).
2. Ballon selon la revendication 1, caractérisé en ce que la ou les bandes (4) recouvrent au maximum 50% de la surface du ballon.  2. Ball according to claim 1, characterized in that the band or bands (4) cover at most 50% of the surface of the balloon.
3. Ballon selon l'une quelconque des revendications 1 et 2, caractérisé en ce que les panneaux externes (3) comprennent une première couche en matériau plastique souple, par exemple en polyuréthane ou en en polychlorure de vinyle.  3. Balloon according to any one of claims 1 and 2, characterized in that the outer panels (3) comprise a first layer of flexible plastic material, for example polyurethane or polyvinyl chloride.
4. Ballon selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les panneaux externes (3) comprennent une deuxième couche en tissu, de préférence orientée vers le ou les éléments longilignes souples bobinés (2).  4. Balloon according to any one of claims 1 to 3, characterized in that the outer panels (3) comprise a second layer of fabric, preferably oriented towards the or elongated flexible elongated elements (2).
5. Ballon selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le ou les éléments longilignes souples bobinés (2) comprennent des fils souples, de préférence en matériau synthétique, tels que des fils de nylon.  5. Balloon according to any one of claims 1 to 4, characterized in that the or the flexible elongated wound elements (2) comprise flexible son, preferably of synthetic material, such as nylon son.
6. Ballon selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le ou les éléments longilignes souples bobinés (2) comprennent des bandes de tissu souples, de préférence en tissu synthétique.  6. Balloon according to any one of claims 1 to 5, characterized in that the or the flexible elongated wound elements (2) comprise strips of flexible fabric, preferably synthetic fabric.
7. Procédé de fabrication d'un ballon, tel qu'un ballon pour la pratique du basket-ball, consistant notamment à recouvrir au moins partiellement une vessie gonflable (1) d'un ou plusieurs éléments longilignes souples (2) bobinés sur la surface de ladite vessie gonflable (1), et à mettre en place un revêtement externe comprenant au moins deux panneaux externes (3) séparés par au moins une bande (4) en matériau élastomère, caractérisé en ce que la mise en place du revêtement externe est obtenue en disposant les panneaux externes (3) et la ou les bandes (4) directement sur le ou les éléments longilignes souples bobinés (2). 7. A method of manufacturing a balloon, such as a ball for the practice of basketball, including in particular at least partially covering an inflatable bladder (1) of one or more flexible elongated elements (2) wound on the surface of said inflatable bladder (1), and to placing an outer covering comprising at least two outer panels (3) separated by at least one strip (4) of elastomeric material, characterized in that the placing of the outer coating is obtained by arranging the outer panels (3) and the the strips (4) directly on the flexible or elongated wound elements (2).
8. Procédé selon la revendication 7, caractérisé en ce que les bandes (4) sont disposées en sorte qu'elles recouvrent au maximum 50% de la surface du ballon.  8. Method according to claim 7, characterized in that the strips (4) are arranged so that they cover at most 50% of the surface of the balloon.
9. Procédé selon l'une quelconque des revendications 7 et 8, caractérisé en ce que les panneaux externes (3) sont réalisés à partir d'une première couche en matériau plastique souple, par exemple en polyuréthane ou en en polychlorure de vinyle.  9. Method according to any one of claims 7 and 8, characterized in that the outer panels (3) are made from a first layer of flexible plastic material, for example polyurethane or polyvinyl chloride.
10. Procédé selon la revendication 9, caractérisé en ce qu'une deuxième couche en tissu est collée sous la première couche.  10. The method of claim 9, characterized in that a second layer of fabric is glued under the first layer.
11. Procédé selon l'une quelconque des revendications 7 à 10, caractérisé en ce que pour disposer la ou les bandes (4) directement sur le ou les éléments longilignes bobinés (2), on dispose cette ou ces bandes (4) dans le fond d'un moule dans lequel la vessie gonflable (1) recouverte au moins partiellement du ou des éléments longilignes souples bobinés (2) est placée.  11. Method according to any one of claims 7 to 10, characterized in that for arranging the strip or strips (4) directly on the elongate or wound elements (2), this or these strips (4) are arranged in the bottom of a mold in which the inflatable bladder (1) at least partially covered or coiled elastic elements (2) is placed.
12. Procédé selon la revendication 11, caractérisé en ce que la vessie gonflable (1) est mise sous-pression, puis l'ensemble est chauffé, en sorte d'obtenir la vulcanisation de la ou des bandes (4).  12. The method of claim 11, characterized in that the inflatable bladder (1) is pressurized, then the assembly is heated, so as to obtain the vulcanization of the band or bands (4).
13. Procédé selon l'une quelconque des revendications 7 à 12, caractérisé en ce que pour disposer les panneaux externes (3) directement sur le ou les éléments longilignes bobinés (2), on découpe lesdits panneaux externes (3) dans le matériau approprié et on colle ces dits panneaux externes (3) de façon adjacente à la ou aux bandes (4) préalablement disposées. 13. Method according to any one of claims 7 to 12, characterized in that for arranging the outer panels (3) directly on the or the elongate wound elements (2), said outer panels (3) are cut in the appropriate material and these said outer panels (3) are glued adjacent to the previously arranged strip or strips (4).
14. Procédé selon l'une quelconque des revendications 7 à 13, caractérisé en ce que pour recouvrir au moins partiellement la vessie gonflable (1) du ou des éléments longilignes souples (2) bobinés, on fait passer le ou les éléments longilignes souples dans un bain de colle, on place la vessie gonflable (1) au contact du ou des éléments longilignes souples (2), et on fait tourner la vessie gonflable (1) en sorte d'obtenir le bobinage du ou des éléments longilignes souples (2) autour de la vessie gonflable (1). 14. Method according to any one of claims 7 to 13, characterized in that to cover at least partially the inflatable bladder (1) of the flexible elongated element (s) (2) wound, is passed or the flexible elongated elements in a bath of glue, the inflatable bladder (1) is placed in contact with the flexible elongated element (s) (2), and the inflatable bladder (1) is rotated so as to obtain the winding of the flexible elongated element (s) (2). ) around the inflatable bladder (1).
EP11741646.1A 2011-05-31 2011-07-08 Ball, particularly for basketball practice, and corresponding manufacture method Active EP2714210B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1154758A FR2975918B1 (en) 2011-05-31 2011-05-31 BALLOON, IN PARTICULAR FOR THE PRACTICE OF THE BASKETBALL, AND METHOD OF MANUFACTURING THE SAME
PCT/FR2011/051632 WO2012164174A1 (en) 2011-05-31 2011-07-08 Ball, particularly for basketball practice, and corresponding manufacture method

Publications (2)

Publication Number Publication Date
EP2714210A1 true EP2714210A1 (en) 2014-04-09
EP2714210B1 EP2714210B1 (en) 2017-09-27

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US (1) US9744409B2 (en)
EP (1) EP2714210B1 (en)
CN (1) CN103717272B (en)
FR (1) FR2975918B1 (en)
WO (1) WO2012164174A1 (en)

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CN112169273A (en) * 2020-09-27 2021-01-05 山东工业职业学院 Exercise auxiliary device of yoga
US20240017130A1 (en) * 2022-07-14 2024-01-18 Nikola Vukovic Basketball and method

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Also Published As

Publication number Publication date
FR2975918B1 (en) 2018-03-23
WO2012164174A1 (en) 2012-12-06
CN103717272A (en) 2014-04-09
EP2714210B1 (en) 2017-09-27
CN103717272B (en) 2016-11-09
FR2975918A1 (en) 2012-12-07
US20140256477A1 (en) 2014-09-11
US9744409B2 (en) 2017-08-29

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