EP2758137B1 - Handle grip for badminton racquet and associated method of manufacture - Google Patents

Handle grip for badminton racquet and associated method of manufacture Download PDF

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Publication number
EP2758137B1
EP2758137B1 EP12773045.5A EP12773045A EP2758137B1 EP 2758137 B1 EP2758137 B1 EP 2758137B1 EP 12773045 A EP12773045 A EP 12773045A EP 2758137 B1 EP2758137 B1 EP 2758137B1
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EP
European Patent Office
Prior art keywords
handle
cross
racket
section
shape
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
EP12773045.5A
Other languages
German (de)
French (fr)
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EP2758137A1 (en
Inventor
Caroline Gillet
Jérémy ROSSI
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Decathlon SE
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Decathlon SE
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Publication of EP2758137A1 publication Critical patent/EP2758137A1/en
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • A63B49/08—Frames with special construction of the handle
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A63B60/08—Handles characterised by the material
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A63B60/10—Handles with means for indicating correct holding positions
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A63B60/14—Coverings specially adapted for handles, e.g. sleeves or ribbons

Definitions

  • the object of the present invention relates to the field of snowshoes, and more specifically the field of gripping sleeves for snowshoes.
  • the object of the present invention finds a particularly advantageous application in a racket sport such as badminton; a badminton racket having a grip handle according to the present invention provides performance and properties much appreciated by badminton players, including high level players.
  • the Applicant submits that the object of the present invention can also find interesting applications in other sports such as golf.
  • the size and shape of the handle are the same over the entire length of said handle.
  • such sleeves consist of a wooden base on which is wound a grip made of a material of the polyurethane type.
  • the Applicant submits that with this type of traditional grip handle players, including high level players, lose power and accuracy when performing a game movement such as a "smatch".
  • the document KR 2003.88042 proposes, in turn, a solution in which the racket handle includes inlays for the fingers to improve the grip of the racket for its user.
  • the handle for the handle of sports articles such as golf clubs or tennis rackets.
  • the handle according to this document consists of a tubular body made of an elastomeric material having a parallel-edge recess for receiving the handle and a contoured outer surface which simulates a helically wound adhesive strip.
  • the object of the present invention is to provide a simple and effective solution to the aforementioned problems among other problems, problems related to cost and manufacturing being obviously considered in the context of the present invention.
  • One of the technical problems that solves the object of the present invention is therefore to propose a solution for the design and manufacture of a racquet handle which allows including good grip while providing good typing power and good accuracy.
  • the object of the present invention relates to a gripping handle for racket such as for example a badminton racket.
  • racket such as for example a badminton racket.
  • the present invention may also be considered for other rackets such as for example a tennis racket, a squash racket or a golf club.
  • the grip handle has substantially the shape of a truncated cone, each cross sectional section has a substantially elliptical shape.
  • the gripping handle for a racket of the type for example a badminton racket, comprises a central sleeve and a covering layer at least partially covering the central sleeve, the covering zone delimited by the covering of the covering layer around the central sleeve being a so-called gripping zone of which each section in cross section has a substantially elliptical shape, and the gripping zone comprises a first end and a second end opposite the first end, said second end being intended to be connected to a sieve rod or a rigid rod of the racket, and the gripping zone has the shape of a truncated cone that extends over a length greater than half the length of the handle, and the cone truncated is shaped so that the cross section of the first end corresponds to the large base of the truncated cone while the cross section of the second end corresponds to the small base of the truncated cone.
  • the second end is close to the sieve of the racket, while the first end, opposite the second end, is distant from said sieve.
  • the truncated cone is advantageously shaped so that its cross section is larger at the first end than the second end. In other words, the large base of the truncated cone is disposed at the first end, while the small base of the truncated cone is disposed at the second end.
  • the gripping handle object of the present invention, has a specific geometry that is characteristic of the present invention.
  • the player has a racket with a grip handle providing ergonomics and comfort very significant for optimal maneuverability on the upper part of the handle and an optimal power on the lower part of the neck, this while keeping an irreproachable comfort thanks to the conical form.
  • the handle according to the present invention comprises a central sleeve and a covering layer covering at least partially the central sleeve.
  • the overlap zone which is delimited by the covering of the covering layer around the central sleeve is a so-called gripping zone.
  • the covering layer comprises a material such as foam, preferably this foam is a polyurethane foam.
  • the covering layer comprises a material such as injected plastic, preferably this plastic is a plastic of the SESB type.
  • the central sleeve according to the present invention comprises an elongated element having a lower portion and an upper portion; this element comprises sections in cross section each having a substantially polygonal shape over at least a portion of the length of said elongate member, and in particular over the length of the lower portion of said elongate member.
  • the upper portion of the elongate element has cross-sectional sections along its length, each having a substantially oval shape.
  • the cover layer is configured to conform around the polygonal elongate member such that the grip handle has substantially the shape of a truncated cone whose cross-sectional sections each have a substantially elliptical shape.
  • the lower portion may also include cross-sectional sections each having an oval, elliptical or round shape.
  • the surface of the first ellipse is greater than the surface of the second ellipse.
  • the taper ratio between the first and second major axes is substantially between the order of 1.05 and 1.2.
  • the taper ratio between the first and second minor axes is substantially between about 1.2 and 1.5.
  • the central sleeve is made at least partially of wood.
  • the central sleeve comprises at its upper portion an opening configured to allow the insertion of a rigid rod so as to allow the assembly of the grip handle with the racket.
  • the gripping zone is at least partially covered with a grip.
  • the object of the present invention also relates to a racket, of the type for example badminton racket, comprising a grip handle as described above.
  • the object of the present invention also relates to a method of manufacturing a gripping handle for racket such as for example a badminton racket, said gripping handle comprising a central elongated sleeve.
  • the manufacturing method as described above makes it possible, thanks to these characteristic steps, to obtain the geometry and configuration of the handle according to the present invention.
  • the elongate central sleeve has a polygonal cross section.
  • the object of the present invention by its specific geometry and proportions and by the manufacturing technical steps used, allows the manufacture and design of an ergonomic racket handle ensuring a good grip, a good power of strikes and good maneuverability for different types of games such as "smatchs", the flat game or the game net.
  • a racquet handle according to two advantageous exemplary embodiments of the present invention as well as the associated manufacturing method will now be described in the following with reference in conjunction with Figures 1A-1B to 5 .
  • the object of the present invention relates to a gripping handle 100 for racket R of the type, for example a badminton racket R, which comprises a sieve having a sieve rod.
  • the grip handle 100 can also be adapted to any type of racket such as for example a racket type tennis racket or squash racket.
  • the cover layer 20 comprises a polyurethane foam.
  • any other equivalent material may be considered in the context of the present invention.
  • the material used can also be an injected plastic of the SESB type. In this case, it is not necessary to provide any grip.
  • truncated cone is meant here a cone whose upper part has been truncated.
  • the truncated cone extends over the entire length of the gripping zone Z and over a length greater than half the length of the gripping sleeve 100.
  • the truncated cone extends over a length greater than two thirds of the length of the grip handle 100.
  • the truncated cone is shaped so that the cross section of the first end E1 or E1 'corresponds to the large base of the truncated cone, while the cross section of the second end E2 or E2 'corresponds to the small base.
  • the cross section is continuously decreasing from the first end E1 or E1 'to the second end E2 or E2' which provides an excellent grip.
  • each section S1, S2, S3 and S1 ', S2', S3 'in cross section has a substantially elliptical shape. This ergonomic shape also ensures good grip comfort.
  • FIGS. 1A to 1B, 2A to 2C , 3A to 3B and 4A to 4C that the section S1 or S1 'in cross section in the form of a first ellipse e1 or e1' has a larger area than the section S2 or S2 'in cross section taking the form of a second ellipse e2 or e2'.
  • first major axis L1 or L1 'and the first minor axis I1 or I1' of the first ellipse e1 or e1 ' respectively have values greater than the second major axis L2 or L2' and second minor axis I2 or I2 'of the second ellipse e2 or e2 '.
  • the ratio of conicity between the first L1 (or L1 ') and the second L2 (or L2') major axes is substantially between the order of 1.05 and 1, 2, and the taper ratio between the first I1 (or I1 ') and the second 12 (or I2') small axes is substantially between the order of 1.2 and 1.5.
  • the player has a racket with a grip handle offering an ergonomics and comfort very appreciable allowing an optimal maneuverability on the high part of the handle and an optimal power on the lower part of the handle, this while keeping an irreproachable comfort thanks to the conical form.
  • the grip handle 100 and more precisely the gripping zone Z, is at least partially covered with a grip 30, this grip 30 improving the comfort of its user.
  • the material for the covering layer may be an SEBS-type injected plastic. In this case, it is not necessary to provide grip. It is also possible to provide for the use of softer foam than a polyurethane foam.
  • the cover layer 20 is configured to conform around the central sleeve 10 so that the handle 100 has substantially the shape of a truncated cone, each section S1, S2, S3 or S1 ', S2', S3 'in cross section has a substantially elliptical shape.
  • the foaming liquid is poured at a temperature of about 45 ° C., this liquid being provided to harden and become a foam at a temperature of between 40 ° and -5 °, cooling said liquid for a period of about 4 minutes.
  • the foam is a polyurethane foam with a hardness of about 25 Shore.
  • this molding step may consist in injecting a plastic liquid inside the mold, this liquid being configured to harden over time following cooling.
  • the central sleeve 10 comprises at its upper portion an opening O configured to allow the insertion of the rigid screen rod T to allow assembly of the handle 100 with the racket R.
  • the sleeves 100 independently of the rest of the racket R, the sieve of the racket being assembled with the handle of the racket via the rod T which is inserted into the hole O.
  • this rod T which is glued inside the handle to a depth of about 7 centimeters.
  • the grip handle according to the present invention offers very good handling, a very good grip , and a good comfort, while allowing a good power and a good precision for movements of game such as a "smatch" or a good precision and a good maneuverability for movements of game such as the game flat or the net game.

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  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
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  • Metal Extraction Processes (AREA)

Description

Domaine techniqueTechnical area

L'objet de la présente invention a trait au domaine des raquettes, et plus précisément le domaine des manches de préhension pour raquettes.The object of the present invention relates to the field of snowshoes, and more specifically the field of gripping sleeves for snowshoes.

L'objet de la présente invention trouve une application particulièrement avantageuse dans un sport de raquette tel que le badminton ; une raquette de badminton comportant un manche de préhension selon la présente invention offre des performances et des propriétés très appréciées des joueurs de badminton, et notamment des joueurs de haut niveau.The object of the present invention finds a particularly advantageous application in a racket sport such as badminton; a badminton racket having a grip handle according to the present invention provides performance and properties much appreciated by badminton players, including high level players.

Bien évidemment, d'autres applications avantageuses pour d'autres sports de raquette tels que notamment le tennis ou le squash peuvent être envisagées dans le cadre de la présente invention.Of course, other advantageous applications for other racket sports such as tennis or squash can be considered in the context of the present invention.

La demanderesse soumet que l'objet de la présente invention peut également trouver des applications intéressantes dans d'autres sports tels que le golf.The Applicant submits that the object of the present invention can also find interesting applications in other sports such as golf.

Etat de la techniqueState of the art

Il est connu des manches de préhension pour raquette de badminton, dits traditionnels, qui ont une forme octogonale, régulière et droite.It is known handle sleeves for badminton racket, so-called traditional, which have an octagonal, regular and straight.

Avec une telle géométrie, la taille et la forme du manche sont les mêmes sur toute la longueur dudit manche.With such a geometry, the size and shape of the handle are the same over the entire length of said handle.

Bien souvent, de tels manches sont constitués d'une base en bois sur laquelle vient s'enrouler un grip constitué dans un matériau du type polyuréthanne.Often, such sleeves consist of a wooden base on which is wound a grip made of a material of the polyurethane type.

La demanderesse soumet qu'avec ce type de manche de préhension traditionnel les joueurs, et notamment les joueurs de haut niveau, perdent en puissance et en précision lorsqu'ils effectuent un mouvement de jeu tel qu'un « smatch ».The Applicant submits that with this type of traditional grip handle players, including high level players, lose power and accuracy when performing a game movement such as a "smatch".

La demanderesse soumet également que ce type de manche n'offre pas une maniabilité et une précision optimales pour le jeu à plat et le jeu au filet.The applicant also submits that this type of handle does not offer optimum handling and precision for flat play and net play.

Pour pallier à ces inconvénients, il existe déjà plusieurs solutions connues : plusieurs documents appartenant à l'état de la technique ont été relevés et tendent à résoudre au moins partiellement les problèmes de maniabilité et de puissance énoncés ci-dessus. Document US-A-2 583 198 divulgue un manche de préhension pour raquette.To overcome these drawbacks, there are already several known solutions: several documents belonging to the state of the art have been identified and tend to at least partially solve the problems of handling and power stated above. Document US-A-2,583,198 discloses a grip handle for snowshoeing.

Parmi ces documents, on relève notamment le document CN 1.555.899 qui propose une solution dans laquelle le manche est constitué dans un matériau qui, une fois chauffé, garde la forme de la main pour une meilleure préhension. On parle ici de « thermoformage » du manche de préhension, une telle solution étant également connue pour améliorer le confort des chaussures de ski.These documents include the document CN 1,555,899 which proposes a solution in which the handle is made of a material which, once heated, keeps the shape of the hand for a better grip. This is called "thermoforming" of the handle, such a solution is also known to improve the comfort of ski boots.

Le document KR 2003.88042 propose, quant à lui, une solution dans laquelle le manche de raquette comporte des incrustations pour les doigts afin d'améliorer la préhension de la raquette pour son utilisateur.The document KR 2003.88042 proposes, in turn, a solution in which the racket handle includes inlays for the fingers to improve the grip of the racket for its user.

On relève également le document WO 9619266 qui divulgue une poignée pour manche d'articles de sports tels que des clubs de golf ou des raquettes de tennis. La poignée selon ce document est constituée d'un corps tubulaire fabriqué dans une matière élastomère comportant un creux à bords parallèles destiné à recevoir le manche et une surface extérieure profilée qui simule une bande adhésive enroulée de manière hélicoïdale.We also note the document WO 9619266 which discloses a handle for the handle of sports articles such as golf clubs or tennis rackets. The handle according to this document consists of a tubular body made of an elastomeric material having a parallel-edge recess for receiving the handle and a contoured outer surface which simulates a helically wound adhesive strip.

Parmi les documents de l'état de la technique, on relève encore le document FR.2.665.097 qui divulgue une poignée ergonomique pour articles de sport permettant de démultiplier les efforts exercés par la main dans les mouvements transversaux et de réduire les glissements tout en évacuant la sueur.Among the documents of the state of the art, there is still the document FR.2.665.097 which features an ergonomic grip for sporting goods that allows you to multiply the hand's effort in the transversal movements and reduce slippage while removing sweat.

En tout état de cause, les différentes solutions proposées dans les documents susmentionnés ne sont pas satisfaisantes en termes de performances, notamment pour une pratique du badminton à un bon, voire un haut niveau. La demanderesse soumet notamment que les différentes solutions envisagées dans l'état de la technique ne permettent pas une bonne préhension ainsi qu'une bonne maniabilité pour un sport tel que le badminton.In any case, the various solutions proposed in the aforementioned documents are not satisfactory in terms of performance, especially for badminton practice at a good or even a high level. The Applicant submits in particular that the various solutions envisaged in the state of the art do not allow good grip and good maneuverability for a sport such as badminton.

La demanderesse observe donc un défaut manifeste en matière de manche pour raquette et notamment pour raquette de badminton : l'état de la technique ne propose pas de solution industrielle satisfaisante permettant une maniabilité, une précision et une puissance optimales, ainsi qu'un confort et une préhension adaptés pour la pratique du badminton, et notamment du badminton à un haut niveau.The applicant therefore observes an obvious defect in terms of racket handle and in particular for badminton racquet: the state of the art does not offer a satisfactory industrial solution allowing maneuverability, optimum precision and power, as well as comfort and grip suitable for badminton, including badminton at a high level.

Résumé de l'objet de la présente inventionSummary of the object of the present invention

L'objet de la présente invention est d'apporter une solution simple et efficace aux problèmes précités parmi d'autres problèmes, les problèmes liés au coût et à la fabrication étant bien évidemment pris en considération dans le cadre de la présente invention.The object of the present invention is to provide a simple and effective solution to the aforementioned problems among other problems, problems related to cost and manufacturing being obviously considered in the context of the present invention.

Un des problèmes techniques que résout l'objet de la présente invention consiste donc à proposer une solution visant la conception et la fabrication d'un manche de raquette qui permet notamment une bonne préhension tout en offrant une bonne puissance de frappe et une bonne précision.One of the technical problems that solves the object of the present invention is therefore to propose a solution for the design and manufacture of a racquet handle which allows including good grip while providing good typing power and good accuracy.

A cet effet, l'objet de la présente invention porte sur un manche de préhension pour raquette tel que par exemple une raquette de badminton. Bien évidemment, comme mentionné ci-dessus, la présente invention peut également être envisagée pour d'autres raquettes telles que par exemple une raquette de tennis, une raquette de squash ou encore un club de golf.For this purpose, the object of the present invention relates to a gripping handle for racket such as for example a badminton racket. Of course, as mentioned above, the present invention may also be considered for other rackets such as for example a tennis racket, a squash racket or a golf club.

Selon la présente invention, le manche de préhension présente sensiblement la forme d'un cône tronqué dont chaque section en coupe transversale présente une forme sensiblement elliptique.According to the present invention, the grip handle has substantially the shape of a truncated cone, each cross sectional section has a substantially elliptical shape.

Selon la présente invention, le manche de préhension pour raquette du type par exemple raquette de badminton, comporte un manchon central et une couche de recouvrement couvrant au moins partiellement le manchon central, la zone de recouvrement délimitée par le recouvrement de la couche de recouvrement autour du manchon central étant une zone dite de préhension dont chaque section en coupe transversale présente une forme sensiblement elliptique, et la zone de préhension comporte une première extrémité et une seconde extrémité opposée à la première extrémité, ladite seconde extrémité étant prévue pour être reliée à une tige de tamis ou à une tige rigide de la raquette, et la zone de préhension présente la forme d'un cône tronqué qui s'étend sur une longueur supérieure à la moitié de la longueur du manche de préhension, et le cône tronqué est conformé de sorte que la section transversale de la première extrémité correspond à la grande base du cône tronqué tandis que la section transversale de la seconde extrémité correspond à la petite base du cône tronqué.According to the present invention, the gripping handle for a racket of the type, for example a badminton racket, comprises a central sleeve and a covering layer at least partially covering the central sleeve, the covering zone delimited by the covering of the covering layer around the central sleeve being a so-called gripping zone of which each section in cross section has a substantially elliptical shape, and the gripping zone comprises a first end and a second end opposite the first end, said second end being intended to be connected to a sieve rod or a rigid rod of the racket, and the gripping zone has the shape of a truncated cone that extends over a length greater than half the length of the handle, and the cone truncated is shaped so that the cross section of the first end corresponds to the large base of the truncated cone while the cross section of the second end corresponds to the small base of the truncated cone.

On comprend que la deuxième extrémité est proche du tamis de la raquette, tandis que la première extrémité, opposée à la deuxième extrémité, est distante dudit tamis. Le cône tronqué est avantageusement conformé en sorte que sa section transversale est plus grande au niveau de la première extrémité que de la deuxième extrémité. En d'autres termes, la grande base du cône tronqué est disposée au niveau de la première extrémité, tandis que la petite base du cône tronqué est disposée au niveau de la deuxième extrémité.It is understood that the second end is close to the sieve of the racket, while the first end, opposite the second end, is distant from said sieve. The truncated cone is advantageously shaped so that its cross section is larger at the first end than the second end. In other words, the large base of the truncated cone is disposed at the first end, while the small base of the truncated cone is disposed at the second end.

En outre, par coupe transversale au sens de la présente invention, il faut comprendre dans toute la présente description qui suit une section qui est réalisée par rapport à un plan perpendiculaire à l'axe de révolution du cône.In addition, in cross section within the meaning of the present invention, it is to be understood throughout the present description which follows a section which is made with respect to a plane perpendicular to the axis of revolution of the cone.

Ainsi, le manche de préhension, objet de la présente invention, comporte une géométrie spécifique qui est caractéristique de la présente invention.Thus, the gripping handle, object of the present invention, has a specific geometry that is characteristic of the present invention.

La demanderesse observe que cette géométrie spécifique présente notamment les avantages suivants :

  • la partie épaisse du cône, au niveau de la partie inférieure du manche de préhension ou « end cap », permet une bonne prise ; cette bonne prise assure la solidité de la préhension pour un gain de puissance lors d'une frappe du volant, notamment lors d'un « smatch », et
  • la partie fine du cône, au niveau de la partie supérieure du manche de préhension ou « top cap », permet une bonne maniabilité de la raquette pour le jeu plat et le jeu au filet.
The Applicant observes that this specific geometry notably has the following advantages:
  • the thick part of the cone, at the bottom of the handle or "end cap", allows a good grip; this good grip ensures the strength of the grip for a gain of power during a strike of the wheel, especially during a "smatch", and
  • the thin portion of the cone, at the upper part of the handle or "top cap", allows good handling of the racket for the flat game and net play.

Aussi, grâce à cette géométrie spécifique proposée ci-dessus, le joueur dispose d'une raquette comportant un manche de préhension offrant une ergonomie et un confort très appréciables permettant une maniabilité optimale sur la partie haute du manche et une puissance optimale sur la partie basse du manche, ceci tout en gardant un confort irréprochable grâce à la forme conique.Also, thanks to this specific geometry proposed above, the player has a racket with a grip handle providing ergonomics and comfort very significant for optimal maneuverability on the upper part of the handle and an optimal power on the lower part of the neck, this while keeping an irreproachable comfort thanks to the conical form.

Avantageusement, le manche de préhension selon la présente invention comporte un manchon central et une couche de recouvrement couvrant au moins partiellement le manchon central. La zone de recouvrement qui est délimitée par le recouvrement de la couche de recouvrement autour du manchon central est une zone dite de préhension.Advantageously, the handle according to the present invention comprises a central sleeve and a covering layer covering at least partially the central sleeve. The overlap zone which is delimited by the covering of the covering layer around the central sleeve is a so-called gripping zone.

Selon une variante de réalisation avantageuse de la présente invention, la couche de recouvrement comporte un matériau tel que de la mousse, de préférence cette mousse est une mousse en polyuréthanne. Alternativement, selon une autre variante de réalisation, la couche de recouvrement comporte un matériau tel que du plastique injecté, de préférence ce plastique est un plastique du type SESB.According to an advantageous embodiment of the present invention, the covering layer comprises a material such as foam, preferably this foam is a polyurethane foam. Alternatively, according to another variant embodiment, the covering layer comprises a material such as injected plastic, preferably this plastic is a plastic of the SESB type.

Selon un mode de réalisation avantageux, le manchon central selon la présente invention comporte un élément longiligne présentant une portion inférieure et une portion supérieure ; cet élément comporte des sections en coupe transversale présentant chacune une forme sensiblement polygonale sur au moins une portion de la longueur dudit élément longiligne, et notamment sur la longueur de la portion inférieure dudit élément longiligne. De préférence, la portion supérieure de l'élément longiligne présente sur toute sa longueur des sections en coupe transversale présentant chacune une forme sensiblement ovale.According to an advantageous embodiment, the central sleeve according to the present invention comprises an elongated element having a lower portion and an upper portion; this element comprises sections in cross section each having a substantially polygonal shape over at least a portion of the length of said elongate member, and in particular over the length of the lower portion of said elongate member. Preferably, the upper portion of the elongate element has cross-sectional sections along its length, each having a substantially oval shape.

Dans ce cas, la couche de recouvrement est configurée pour se conformer autour de l'élément longiligne polygonal de telle manière que le manche de préhension présente sensiblement la forme d'un cône tronqué dont les sections en coupe transversale présentent chacune une forme sensiblement elliptique.In this case, the cover layer is configured to conform around the polygonal elongate member such that the grip handle has substantially the shape of a truncated cone whose cross-sectional sections each have a substantially elliptical shape.

La portion inférieure peut également comporter des sections en coupe transversale présentant chacune une forme ovale, elliptique ou ronde.The lower portion may also include cross-sectional sections each having an oval, elliptical or round shape.

Dans ce cas, de préférence, le manche de préhension selon la présente invention comporte :

  1. a) au niveau de la première extrémité, une section en coupe transversale prenant la forme d'une première ellipse avec un premier grand axe et un premier petit axe, et
  2. b) au niveau de la deuxième extrémité, une section en coupe transversale prenant la forme d'une deuxième ellipse avec un deuxième grand axe et un deuxième petit axe.
In this case, preferably, the handle according to the present invention comprises:
  1. a) at the first end, a cross section in the form of a first ellipse with a first major axis and a first minor axis, and
  2. b) at the second end, a cross section in the form of a second ellipse with a second major axis and a second minor axis.

Avantageusement, la surface de la première ellipse est supérieure à la surface de la deuxième ellipse.Advantageously, the surface of the first ellipse is greater than the surface of the second ellipse.

Avantageusement, le ratio de conicité entre les premier et deuxième grands axes est sensiblement compris entre de l'ordre de 1,05 et 1,2.Advantageously, the taper ratio between the first and second major axes is substantially between the order of 1.05 and 1.2.

Avantageusement, le ratio de conicité entre les premier et deuxième petits axes est sensiblement compris entre de l'ordre de 1,2 et 1,5.Advantageously, the taper ratio between the first and second minor axes is substantially between about 1.2 and 1.5.

Selon une variante de réalisation avantageuse de la présente invention, le manchon central est constitué au moins partiellement en bois.According to an advantageous embodiment of the present invention, the central sleeve is made at least partially of wood.

Avantageusement, le manchon central comprend au niveau de sa portion supérieure une ouverture configurée pour permettre l'insertion d'une tige rigide en sorte de permettre l'assemblage du manche de préhension avec la raquette.Advantageously, the central sleeve comprises at its upper portion an opening configured to allow the insertion of a rigid rod so as to allow the assembly of the grip handle with the racket.

Selon une variante de réalisation avantageuse de la présente invention qui peut bien évidemment être combinée avec les autres variantes décrites ci-dessus, la zone de préhension est couverte au moins partiellement d'un grip.According to an advantageous embodiment of the present invention which can of course be combined with the other variants described above, the gripping zone is at least partially covered with a grip.

L'objet de la présente invention porte également sur une raquette, du type par exemple raquette de badminton, comportant un manche de préhension tel que décrit ci-dessus.The object of the present invention also relates to a racket, of the type for example badminton racket, comprising a grip handle as described above.

Corrélativement, l'objet de la présente invention porte également sur un procédé de fabrication d'un manche de préhension pour raquette tel que par exemple une raquette de badminton, ledit manche de préhension comportant un manchon central longiligne.Correlatively, the object of the present invention also relates to a method of manufacturing a gripping handle for racket such as for example a badminton racket, said gripping handle comprising a central elongated sleeve.

Avantageusement, le procédé de fabrication selon la présente invention comporte :

  • une étape de positionnement consistant à positionner le manchon central à l'intérieur d'un moule présentant un moyen de moulage ayant la forme d'un cône tronqué dont chaque section en coupe transversale présente une forme sensiblement elliptique, et
  • une étape de moulage consistant à verser un liquide de moussage à l'intérieur dudit moule ou alternativement consistant à injecter un liquide plastique à l'intérieur dudit moule.
Advantageously, the manufacturing method according to the present invention comprises:
  • a positioning step of positioning the central sleeve within a mold having a truncated cone shaped forming means each sectional section of which is substantially elliptical in shape, and
  • a molding step of pouring a foaming liquid into said mold or alternatively comprising injecting a plastic liquid into said mold.

Le procédé de fabrication tel que décrit ci-dessus permet, grâce à ces étapes caractéristiques, d'obtenir la géométrie et la configuration du manche de préhension selon la présente invention.The manufacturing method as described above makes it possible, thanks to these characteristic steps, to obtain the geometry and configuration of the handle according to the present invention.

Avantageusement, le manchon central longiligne présente une section transversale polygonale.Advantageously, the elongate central sleeve has a polygonal cross section.

Ainsi, l'objet de la présente invention, par sa géométrie et ses proportions spécifiques et par les étapes techniques de fabrication mises en oeuvre, permet la fabrication et la conception d'un manche de raquette ergonomique assurant une bonne préhension, une bonne puissance de frappe et une bonne maniabilité pour les différents types de jeux tels que les « smatchs », le jeu à plat ou encore le jeu au filet.Thus, the object of the present invention, by its specific geometry and proportions and by the manufacturing technical steps used, allows the manufacture and design of an ergonomic racket handle ensuring a good grip, a good power of strikes and good maneuverability for different types of games such as "smatchs", the flat game or the game net.

Brève description des figuresBrief description of the figures

D'autres caractéristiques et avantages de la présente invention ressortiront de la description ci-dessus en faisant référence aux figures 1A-1B à 5 annexées qui illustrent deux exemples de réalisation non limitatifs et sur lesquelles :

  • les figures 1A et 1B représentent chacune de façon schématique une vue en coupe longitudinale d'un manche de préhension selon un premier exemple de réalisation avantageux de la présente invention ;
  • les figures 2A à 2C représentent chacune de façon schématique une vue en coupe transversale d'un manche de préhension conforme à l'exemple de réalisation des figures 1A et 1B ;
  • les figures 3A et 3B représentent chacune de façon schématique une vue en coupe longitudinale d'un manche de préhension selon un deuxième exemple de réalisation avantageux de la présente invention ;
  • les figures 4A à 4C représentent chacune de façon schématique une vue en coupe transversale d'un manche de préhension conforme à l'exemple de réalisation des figures 3A et 3B ; et
  • la figure 5 représente quant à elle un exemple de réalisation d'une raquette comportant un manche de préhension selon l'un ou l'autre des exemples de réalisation des figures 1A et 1B ou 3A et 3B.
Other features and advantages of the present invention will become apparent from the above description with reference to Figures 1A-1B to 5 appended which illustrate two nonlimiting exemplary embodiments and on which:
  • the Figures 1A and 1B each schematically represent a longitudinal sectional view of a handle according to a first advantageous embodiment of the present invention;
  • the FIGS. 2A to 2C each schematically represents a cross-sectional view of a grip sleeve according to the embodiment of FIGS. Figures 1A and 1B ;
  • the Figures 3A and 3B each schematically represent a longitudinal sectional view of a handle according to a second advantageous embodiment of the present invention;
  • the Figures 4A to 4C each schematically represents a cross-sectional view of a grip sleeve according to the embodiment of FIGS. Figures 3A and 3B ; and
  • the figure 5 represents, for its part, an embodiment of a racket comprising a grip handle according to one or other of the embodiments of FIGS. Figures 1A and 1B or 3A and 3B .

Description détaillée d'un exemple de réalisation selon la présente inventionDetailed description of an exemplary embodiment according to the present invention

Un manche de raquette conforme à deux exemples de réalisation avantageux de la présente invention ainsi que le procédé de fabrication associé vont maintenant être décrits dans ce qui suit en faisant référence conjointement aux figures 1A-1B à 5.A racquet handle according to two advantageous exemplary embodiments of the present invention as well as the associated manufacturing method will now be described in the following with reference in conjunction with Figures 1A-1B to 5 .

Permettre la conception et la fabrication d'un manche de raquette maniable, ergonomique et assurant une puissance et une précision optimales notamment pour le jeu de type « smatch », le jeu à plat et le jeu au filet est un des objectifs de la présente invention.Enabling the design and manufacture of a maneuverable racket handle, ergonomic and ensuring optimum power and accuracy especially for the game of the "smatch" type, the flat game and the net game is one of the objectives of the present invention .

A cet effet, comme illustré en figure 5, l'objet de la présente invention porte sur un manche de préhension 100 pour raquette R du type par exemple raquette de badminton R, qui comprend un tamis ayant une tige de tamis.For this purpose, as illustrated in figure 5 the object of the present invention relates to a gripping handle 100 for racket R of the type, for example a badminton racket R, which comprises a sieve having a sieve rod.

Comme précédemment évoqué, le manche de préhension 100 selon la présente invention peut également être adapté sur tout type de raquette telle que par exemple une raquette du type raquette de tennis ou raquette de squash.As previously mentioned, the grip handle 100 according to the present invention can also be adapted to any type of racket such as for example a racket type tennis racket or squash racket.

Dans les deux exemples de réalisation décrits ici, et comme illustrés notamment aux figures 1A à 1B et 3A à 3B, le manche de préhension 100 selon la présente invention comporte :

  • un manchon central 10 constitué au moins partiellement en bois, et
  • une couche de recouvrement 20 couvrant au moins partiellement le manchon central 10 ; la zone de recouvrement Z qui est délimitée par le recouvrement de la couche de recouvrement 20 autour du manchon central 10 est une zone dite de préhension Z.
In the two embodiments described here, and as illustrated in particular in Figures 1A to 1B and 3A to 3B the gripping handle 100 according to the present invention comprises:
  • a central sleeve 10 made at least partially of wood, and
  • a cover layer 20 at least partially covering the central sleeve 10; the overlap zone Z which is delimited by the covering of the covering layer 20 around the central sleeve 10 is a so-called gripping zone Z.

Dans chaque exemple décrit ici, la couche de recouvrement 20 comporte une mousse en polyuréthane. Bien évidemment, tout autre matériau équivalent peut être envisagé dans le cadre de la présente invention.In each example described here, the cover layer 20 comprises a polyurethane foam. Of course, any other equivalent material may be considered in the context of the present invention.

Comme évoqué précédemment, le matériau utilisé peut également être un plastique injecté du type SESB. Dans ce cas, il n'est pas nécessaire de prévoir un quelconque grip.As mentioned above, the material used can also be an injected plastic of the SESB type. In this case, it is not necessary to provide any grip.

Pour résoudre le problème technique énoncé précédemment, l'objet de la présente invention comporte les caractéristiques suivantes :

  • Dans les deux exemples de réalisation décrits ici, et comme illustré en figures 1A à 1B et 3A à 3B, la zone de préhension Z du manche de préhension 100 présente la forme d'un cône tronqué.
To solve the technical problem stated above, the subject of the present invention has the following characteristics:
  • In the two embodiments described here, and as illustrated in Figures 1A to 1B and 3A to 3B the gripping zone Z of the gripping handle 100 has the shape of a truncated cone.

Par cône tronqué, on entend ici un cône dont la partie supérieure a été tronquée.By truncated cone is meant here a cone whose upper part has been truncated.

Dans cet exemple, le cône tronqué s'étend sur toute la longueur de la zone de préhension Z et sur une longueur supérieure à la moitié de la longueur du manche de préhension 100.In this example, the truncated cone extends over the entire length of the gripping zone Z and over a length greater than half the length of the gripping sleeve 100.

De préférence, le cône tronqué s'étend sur une longueur supérieure aux deux tiers de la longueur du manche de préhension 100. Le cône tronqué est conformé de sorte que la section transversale de la première extrémité E1 ou E1' correspond à la grande base du cône tronqué, tandis que la section transversale de la seconde extrémité E2 ou E2' correspond à la petite base.Preferably, the truncated cone extends over a length greater than two thirds of the length of the grip handle 100. The truncated cone is shaped so that the cross section of the first end E1 or E1 'corresponds to the large base of the truncated cone, while the cross section of the second end E2 or E2 'corresponds to the small base.

Dans cet exemple, la section transversale est continûment décroissante depuis la première extrémité E1 ou E1' jusqu'à la seconde extrémité E2 ou E2' ce qui permet d'offrir une excellente préhension.In this example, the cross section is continuously decreasing from the first end E1 or E1 'to the second end E2 or E2' which provides an excellent grip.

Dans les deux exemples de réalisation décrits ici, et comme illustré en figures 2A à 2C et 4A à 4C, chaque section S1, S2, S3 et S1', S2', S3' en coupe transversale présente une forme sensiblement elliptique. Cette forme ergonomique assure en outre un bon confort de préhension.In the two embodiments described here, and as illustrated in FIGS. 2A to 2C and 4A to 4C each section S1, S2, S3 and S1 ', S2', S3 'in cross section has a substantially elliptical shape. This ergonomic shape also ensures good grip comfort.

Plus précisément, dans les deux exemples décrits ici, et comme illustré en figures 1A à 1B, 2A à 2C, 3A à 3B et 4A à 4C, la zone de préhension Z comporte une première E1 ou E1' extrémité et une deuxième E2 ou E1' extrémité. La seconde extrémité, opposée à la première extrémité, est prévue pour être reliée directement à la tige de tamis et le manche de préhension 100 présente :

  1. a) au niveau de la première extrémité E1 ou E1', une section S1 ou S1' en coupe transversale prenant la forme d'une première ellipse e1 ou e1', cette première ellipse présentant un premier grand axe L1 ou L1' et un premier petit axe I1 ou I1', et
  2. b) au niveau de la deuxième extrémité E2 ou E2', une section S2 ou S2' en coupe transversale prenant la forme d'une deuxième ellipse e2 ou e2', cette deuxième ellipse présentant un deuxième grand axe L2 ou L2' et un deuxième petit axe 12 ou I2'.
Specifically, in the two examples described here, and as illustrated in FIGS. 1A to 1B, 2A to 2C , 3A to 3B and 4A to 4C the gripping zone Z comprises a first E1 or E1 'end and a second E2 or E1' end. The second end, opposite the first end, is intended to be connected directly to the sieve rod and the handle 100 has:
  1. a) at the first end E1 or E1 ', a section S1 or S1' in cross-section taking the form of a first ellipse e1 or e1 ', this first ellipse having a first major axis L1 or L1' and a first small axis I1 or I1 ', and
  2. b) at the second end E2 or E2 ', a section S2 or S2' in cross-section taking the form of a second ellipse e2 or e2 ', this second ellipse having a second major axis L2 or L2' and a second small axis 12 or I2 '.

On constate, en outre, sur les figures 1A à 1B, 2A à 2C, 3A à 3B et 4A à 4C que la section S1 ou S1' en coupe transversale prenant la forme d'une première ellipse e1 ou e1' présente une plus grande surface que la section S2 ou S2' en coupe transversale prenant la forme d'une deuxième ellipse e2 ou e2'.In addition, there is evidence of FIGS. 1A to 1B, 2A to 2C , 3A to 3B and 4A to 4C that the section S1 or S1 'in cross section in the form of a first ellipse e1 or e1' has a larger area than the section S2 or S2 'in cross section taking the form of a second ellipse e2 or e2'.

Plus particulièrement, le premier grand axe L1 ou L1' et le premier petit axe I1 ou I1' de la première ellipse e1 ou e1' ont respectivement des valeurs supérieures au deuxième grand axe L2 ou L2' et deuxième petit axe I2 ou I2' de la deuxième ellipse e2 ou e2'.More particularly, the first major axis L1 or L1 'and the first minor axis I1 or I1' of the first ellipse e1 or e1 'respectively have values greater than the second major axis L2 or L2' and second minor axis I2 or I2 'of the second ellipse e2 or e2 '.

Ainsi on comprend que dans les deux exemples décrits ici, le ratio de conicité entre le premier L1 (ou L1') et le deuxième L2 (ou L2') grands axes est sensiblement compris entre de l'ordre de 1,05 et 1,2, et le ratio de conicité entre le premier I1 (ou I1') et le deuxième 12 (ou I2') petits axes est sensiblement compris entre de l'ordre de 1,2 et 1,5.Thus it is understood that in the two examples described here, the ratio of conicity between the first L1 (or L1 ') and the second L2 (or L2') major axes is substantially between the order of 1.05 and 1, 2, and the taper ratio between the first I1 (or I1 ') and the second 12 (or I2') small axes is substantially between the order of 1.2 and 1.5.

Grâce à cette géométrie spécifique, et ces proportions précises, le joueur dispose d'une raquette comportant un manche de préhension offrant une ergonomie et un confort très appréciables permettant une maniabilité optimale sur la partie haute du manche et une puissance optimale sur la partie basse du manche, ceci tout en gardant un confort irréprochable grâce à la forme conique.Thanks to this specific geometry, and these precise proportions, the player has a racket with a grip handle offering an ergonomics and comfort very appreciable allowing an optimal maneuverability on the high part of the handle and an optimal power on the lower part of the handle, this while keeping an irreproachable comfort thanks to the conical form.

Dans chaque exemple décrit ici, le manche de préhension 100, et plus précisément la zone de préhension Z, est couverte au moins partiellement d'un grip 30, ce grip 30 améliorant le confort de son utilisateur. Comme évoqué précédemment, de façon alternative, le matériau pour la couche de recouvrement peut être un plastique injecté de type SEBS. Dans ce cas, il n'est pas nécessaire de prévoir de grip. Il est également possible de prévoir l'utilisation de mousse plus molle qu'une mousse en polyuréthane.In each example described here, the grip handle 100, and more precisely the gripping zone Z, is at least partially covered with a grip 30, this grip 30 improving the comfort of its user. As mentioned above, alternatively, the material for the covering layer may be an SEBS-type injected plastic. In this case, it is not necessary to provide grip. It is also possible to provide for the use of softer foam than a polyurethane foam.

Dans les deux exemples de réalisation décrits ici, et comme illustré notamment aux figures 2A à 2C et 4A à 4C, le manchon central 10 comporte un élément longiligne :

  1. a) dont les sections en coupe transversale présentent chacune une forme sensiblement polygonale sur la longueur de la portion inférieure de l'élément longiligne, à savoir la portion comprise sensiblement entre les sections S1 et S3 ou S1' et S3', et
  2. b) dont les sections en coupe transversale présentent chacune une forme sensiblement ovale sur la longueur de la portion supérieure de l'élément longiligne, à savoir la portion comprise sensiblement entre les sections S2 et S3 ou S2' et S3'.
In the two embodiments described here, and as illustrated in particular in FIGS. 2A to 2C and 4A to 4C the central sleeve 10 comprises an elongated element:
  1. a) whose cross-sectional sections each have a substantially polygonal shape along the length of the lower portion of the elongate element, namely the portion substantially between the sections S1 and S3 or S1 'and S3', and
  2. b) whose cross-sectional sections each have a substantially oval shape along the length of the upper portion of the elongate element, namely the portion substantially between the sections S2 and S3 or S2 'and S3'.

Dans les deux exemples de réalisation décrits ici, la couche de recouvrement 20 est configurée pour se conformer autour du manchon central 10 de telle manière que le manche de préhension 100 présente sensiblement la forme d'un cône tronqué dont chaque section S1, S2, S3 ou S1', S2', S3' en coupe transversale présente une forme sensiblement elliptique.In the two embodiments described here, the cover layer 20 is configured to conform around the central sleeve 10 so that the handle 100 has substantially the shape of a truncated cone, each section S1, S2, S3 or S1 ', S2', S3 'in cross section has a substantially elliptical shape.

Afin d'obtenir une telle géométrie, la présente invention prévoit un procédé de fabrication spécifique, qui n'est pas illustré ici, mais qui présente notamment les étapes suivantes :

  • une étape de positionnement consistant à positionner le manchon central 10 à l'intérieur d'un moule spécifique (non représenté ici) présentant un moyen de moulage ayant la forme d'un cône tronqué dont chaque section en coupe transversale présente une forme sensiblement elliptique et qui présente les caractéristiques décrites précédemment, et
  • une étape de moulage consistant à verser un liquide de moussage à l'intérieur du moule.
In order to obtain such a geometry, the present invention provides a specific manufacturing method, which is not illustrated here, but which presents in particular the following steps:
  • a positioning step of positioning the central sleeve 10 within a specific mold (not shown here) having a molding means in the form of a truncated cone of which each cross sectional section has a substantially elliptical shape and which has the characteristics described above, and
  • a molding step of pouring a foaming liquid into the mold.

Dans l'exemple décrit ici, le liquide de moussage est versé à une température d'environ 45°C, ce liquide étant prévu pour durcir et devenir une mousse sous une température comprise entre 40° et -5°, ceci lorsqu'on laisse refroidir ledit liquide pendant une durée d'environ 4 minutes.In the example described here, the foaming liquid is poured at a temperature of about 45 ° C., this liquid being provided to harden and become a foam at a temperature of between 40 ° and -5 °, cooling said liquid for a period of about 4 minutes.

La mousse est une mousse en polyuréthane dont la dureté est d'environ 25 Shore.The foam is a polyurethane foam with a hardness of about 25 Shore.

Alternativement, cette étape de moulage peut consister à injecter un liquide plastique à l'intérieur du moule, ce liquide étant configuré pour se durcir dans le temps suite à un refroidissement.Alternatively, this molding step may consist in injecting a plastic liquid inside the mold, this liquid being configured to harden over time following cooling.

Grâce à un tel procédé, il est possible d'obtenir une architecture spécifique avec un manchon central en bois et une couche de recouvrement en mousse, cette couche recouvrant le manchon de sorte à obtenir la géométrie attendue.With such a method, it is possible to obtain a specific architecture with a central wooden sleeve and a foam cover layer, this layer covering the sleeve so as to obtain the expected geometry.

Dans l'exemple de réalisation décrit au figures 3a et 3b, le manchon central 10 comprend au niveau de sa portion supérieure une ouverture O configurée pour permettre l'insertion de la tige T de tamis rigide afin de permettre l'assemblage du manche de préhension 100 avec la raquette R. Ainsi, dans cet exemple, il est possible de fabriquer les manches 100 indépendamment du reste de la raquette R, le tamis de la raquette étant assemblé avec le manche de la raquette par l'intermédiaire de la tige T qui vient s'insérer dans le trou O. Dans l'exemple décrit ici, cette tige T qui est collée à l'intérieur du manche selon une profondeur d'environ 7 centimètres.In the exemplary embodiment described in Figures 3a and 3b , the central sleeve 10 comprises at its upper portion an opening O configured to allow the insertion of the rigid screen rod T to allow assembly of the handle 100 with the racket R. Thus, in this example, it is possible to manufacture the sleeves 100 independently of the rest of the racket R, the sieve of the racket being assembled with the handle of the racket via the rod T which is inserted into the hole O. In the example described here, this rod T which is glued inside the handle to a depth of about 7 centimeters.

Grâce à ces différentes caractéristiques techniques, et notamment grâce à cette géométrie et ses proportions spécifiques, il a été observé de très bonnes performances pour la pratique du badminton : le manche de préhension selon la présente invention offre une très bonne maniabilité, une très bonne préhension, et un bon confort, tout en permettant une bonne puissance et une bonne précision pour des mouvements de jeu tels qu'un « smatch » ou encore une bonne précision et une bonne maniabilité pour des mouvements de jeu tels que le jeu à plat ou le jeu au filet.Thanks to these different technical characteristics, and in particular thanks to this geometry and its specific proportions, it has been observed very good performance for the practice of badminton: the grip handle according to the present invention offers very good handling, a very good grip , and a good comfort, while allowing a good power and a good precision for movements of game such as a "smatch" or a good precision and a good maneuverability for movements of game such as the game flat or the net game.

Il devra être observé que cette description détaillée porte sur un exemple de réalisation particulier de la présente invention, mais qu'en aucun cas cette description ne revêt un quelconque caractère limitatif à l'objet de l'invention.It should be observed that this detailed description relates to a particular embodiment of the present invention, but in no case this description is of any nature limiting to the subject of the invention.

Claims (11)

  1. A handle (100) for a racket (R), e.g. of the badminton racket (R) type, the handle comprising a central core (10) and a covering layer (20) covering the central core (10) at least in part, the covering zone (Z) defined by the covering of the covering layer (20) around the central core (10) being a "grip" zone (Z) in which each cross-section (S1, S2, S3, S1', S2', S3') is substantially elliptical in shape, the handle being characterized in that the grip zone (Z) has a first end (E1, E1') and a second end (E2, E2') opposite from the first end, said second end (E2, E2') having provision for being connected to a rigid shaft (T) of the racket (R), in that the grip zone (Z) presents the shape of a truncated cone extending over a length greater than half the length of the handle (100), and in that the truncated cone is shaped in such a manner that the cross-section of the first end corresponds to the large base of the truncated cone, while the cross-section of the second end corresponds to the small base of the truncated cone.
  2. A handle (100) according to claim 1, characterized in that the covering layer (20) comprises a material such as a foam, preferably a polyurethane foam, or a material such as an injected plastics material, preferably an injected plastics material of the SEBS type.
  3. A handle (100) according to claim 1 or claim 2, characterized in that the central core (10) comprises an elongate element of cross-sections that each present a shape that is substantially polygonal over the entire length of a bottom portion of the elongate element and of cross-sections, each presenting a shape that is substantially oval over the entire length of a top portion of the elongate element, and in that the covering layer (20) is configured to be shaped around the polygonal elongate element in such a manner that the handle (100) is substantially in the form of a truncated cone in which each cross-section (S1, S2, S3, S1', S2', S3') is substantially elliptical in shape.
  4. A handle (100) according to any one of claims 1 to 3, characterized in that said handle (100) presents: a) at the first end (E1, E1'), a cross-section (S1, S1') in the shape of a first ellipse (e1, e1') with a first major axis (L1, L2) and a first minor axis (ℓ1, ℓ1'); and b) at the second end (E2, E2'), a cross-section in the shape of a second ellipse (E2, E2') with a second major axis (L2, L2') and a second minor axis (ℓ2, ℓ2'), in that the taper ratio between the first and second major axes (L1, L1' and L2, L2') lies substantially in the range 1.05 to 1.2; and in that the taper ratio between the first and second minor axes (ℓ1, ℓ1' and ℓ2, ℓ2') lies substantially in the range 1.2 to 1.5.
  5. A handle (100) according to any one of claims 1 to 4, characterized in that the central core (10) is made at least in part out of wood.
  6. A handle (100) according to any one of claims 1 to 5, characterized in that the central core (10) includes an opening (O) in its top portion, which opening is configured to enable the shaft (T) of the racket to be inserted in order to enable the handle (100) to be assembled with the stringing of the racket (R).
  7. A handle (100) according to any one of claims 1 to 6, characterized in that the handle (100) and preferably the grip zone (Z), is covered at least in part in an overgrip (30).
  8. A badminton racket (R) including a handle (100) according to any one of claims 1 to 7.
  9. A racket according to claim 8, characterized in that it includes a head, in that the frustoconical grip zone (Z) presents a first end (E1, E1') and a second end (E2, E2') remote from the first end, which second end is connected by a shaft to the head, and in that the cross-section of the first end is greater than the cross-section of the second end.
  10. A method of fabricating a handle (100) for a racket (R) according to any one of claims 1 to 7, such as for example a badminton racket, said handle (100) having an elongate central core (10), the method being characterized in that it comprises:
    · a positioning step consisting in positioning the central core (10) inside a mold having molding means in the form of a truncated cone in which each cross-section presents a shape that is substantially elliptical; and
    · a molding step consisting in pouring a foamable liquid into said mold or consisting in injecting a liquid plastics material into said mold.
  11. A method according to claim 10 for fabricating a handle (100) for a racket (R), the method being characterized in that the elongate central core (10) presents a cross-section that is polygonal.
EP12773045.5A 2011-09-16 2012-09-14 Handle grip for badminton racquet and associated method of manufacture Not-in-force EP2758137B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1158266A FR2980115B3 (en) 2011-09-16 2011-09-16 BADMINTON RIGGING SLEEVE AND METHOD OF MANUFACTURING THE SAME
PCT/FR2012/052070 WO2013038116A1 (en) 2011-09-16 2012-09-14 Handle grip for badminton racquet and associated method of manufacture

Publications (2)

Publication Number Publication Date
EP2758137A1 EP2758137A1 (en) 2014-07-30
EP2758137B1 true EP2758137B1 (en) 2015-11-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12773045.5A Not-in-force EP2758137B1 (en) 2011-09-16 2012-09-14 Handle grip for badminton racquet and associated method of manufacture

Country Status (4)

Country Link
EP (1) EP2758137B1 (en)
CN (1) CN103945908B (en)
FR (1) FR2980115B3 (en)
WO (1) WO2013038116A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105169646A (en) * 2015-09-25 2015-12-23 深圳市索德士体育用品有限公司 Badminton racket
CN107641311A (en) * 2016-07-20 2018-01-30 丹阳市飞利健身器材有限公司 A kind of racket sweatband
CN109204245A (en) * 2018-09-11 2019-01-15 蒋淑娇 A kind of automobile wax-polishing machine carrying out perspiration removing using inflator principle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2583198A (en) * 1948-07-02 1952-01-22 Spalding A G & Bros Inc Grip structure
GB1367353A (en) * 1969-10-29 1974-09-18 Dunlop Holdings Ltd Sports implements
FR2566670B1 (en) * 1984-06-27 1986-11-21 Bessay Raymond RACKET HANDLE
AU6287386A (en) * 1985-09-11 1987-04-07 Ulrich Gertsch Handle for sports striking apparatus
WO1990009214A1 (en) * 1989-02-10 1990-08-23 Riesen, Peter A handle for sports racquets
FR2665097B1 (en) 1990-07-30 1992-10-23 Barbati Silvio ERGONOMIC HANDLE IN PARTICULAR FOR SPORTS GOODS.
CN2134878Y (en) * 1992-10-10 1993-06-02 蔡科然 Improved racket handle
AUPN018894A0 (en) 1994-12-21 1995-01-19 Clarke, Richard Lance Sporting grips
CN2336830Y (en) * 1998-07-09 1999-09-08 乔国皮革厂股份有限公司 Handle for Golf club
US6966846B2 (en) * 1999-10-19 2005-11-22 Bloom Jr James Pierce Counterweighted golf club
CN2566903Y (en) * 2002-07-25 2003-08-20 陈胜任 Handle of golf club
CN1250307C (en) 2004-01-12 2006-04-12 湖北工业大学 Hand shaped adaptive racket
KR200388042Y1 (en) 2005-03-22 2005-06-29 리엔리하이테크(주) Badminton racket having handle for high grip-stability
CN201445747U (en) * 2009-06-12 2010-05-05 余景何 Tennis racket handle sleeve

Also Published As

Publication number Publication date
CN103945908B (en) 2017-02-22
CN103945908A (en) 2014-07-23
EP2758137A1 (en) 2014-07-30
FR2980115A3 (en) 2013-03-22
WO2013038116A1 (en) 2013-03-21
FR2980115B3 (en) 2013-12-13

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