EP0299568B1 - Racket for tennis, squash or a similar sport - Google Patents

Racket for tennis, squash or a similar sport Download PDF

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Publication number
EP0299568B1
EP0299568B1 EP88201404A EP88201404A EP0299568B1 EP 0299568 B1 EP0299568 B1 EP 0299568B1 EP 88201404 A EP88201404 A EP 88201404A EP 88201404 A EP88201404 A EP 88201404A EP 0299568 B1 EP0299568 B1 EP 0299568B1
Authority
EP
European Patent Office
Prior art keywords
racket
handle
height
head
branches
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.)
Expired - Lifetime
Application number
EP88201404A
Other languages
German (de)
French (fr)
Other versions
EP0299568A2 (en
EP0299568A3 (en
Inventor
Joris Van Raemdonck
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.)
Donnay International SA
Original Assignee
"etablissements Donnay" En Abrege "donnay Sa"
"etablissements Donnay" En Abrege "donnay Sa"
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 "etablissements Donnay" En Abrege "donnay Sa", "etablissements Donnay" En Abrege "donnay Sa" filed Critical "etablissements Donnay" En Abrege "donnay Sa"
Priority to AT88201404T priority Critical patent/ATE75154T1/en
Publication of EP0299568A2 publication Critical patent/EP0299568A2/en
Publication of EP0299568A3 publication Critical patent/EP0299568A3/en
Application granted granted Critical
Publication of EP0299568B1 publication Critical patent/EP0299568B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • 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
    • A63B49/03—Frames characterised by throat sections, i.e. sections or elements between the head and the shaft
    • 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
    • A63B2049/0201—Frames with defined head dimensions
    • A63B2049/0203—Frames with defined head dimensions height
    • 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
    • A63B2049/0207—Frames with defined overall length

Definitions

  • the present invention relates to a tennis, squash or similar sports racket.
  • GB-A-1 321 235 discloses a racket in which the handle and the basket are connected by a tubular rod which, in order to reconcile the properties of resistance, lightness and flexibility, tapers towards the basket. so that when the racket basket is loaded, the surface stress at the narrowest end of the tubular rod is in a range of 80-110% of the surface stress at the widest end of the rod .
  • the object of the invention is to produce a racket, the striking characteristics of which, due in particular to greater flexibility of the handle of the racket, are considerably improved in comparison with rackets obtained by current techniques making use of so-called materials. composites "having the characteristics described above.
  • the object of the invention is also to produce a racket whose vibrations resulting from striking the ball are significantly improved and their transmission to the player's arm considerably attenuated.
  • the invention provides a racket comprising a handle consisting of a handle and two branches which connect the handle to the basket, in which the aforementioned branches have, from the place where they connect to the aforementioned basket , a section whose height decreases from the aforementioned location towards the aforementioned handle to reach a minimum height section at a point which is located at about two thirds of the distance between the free end of the handle the racket from where the branches connect to the racket basket.
  • the aforementioned basket of the racket has a section of constant height.
  • the aforementioned minimum height section is located, for a total length of the handle of the racket equivalent to approximately 382 mm, at a distance from the free end of the racket which is between 215 and 255 mm.
  • the constant height of the racket basket is between 25 and 27 mm while the aforementioned minimum height of the branches of the racket is between 16.3 and 17.2 mm and is preferably 16, 8 mm.
  • Figure 1 is an elevational view of part of the racket according to the invention, the heart of the racket formed by a part of the basket, the two branches and the part of the handle located at the junction of the two branches.
  • FIG. 2 is a side view of the same parts of the racket according to FIG. 1.
  • the racket according to the invention produced as said in the preamble, by one of the techniques using the use of so-called "composite” materials, is essentially characterized by the decreasing height of the arms 1 of the racket from the point where these are connected to the basket 2 in the direction of the handle 3 of the racket.
  • the minimum height section is therefore indicated by the line A-A ′ in FIG. 2 and it occurs in this part of the handle which is constituted by the branches 1.
  • Figure 2 clearly shows that the height of the branches 1 decreases from a place designated by line BB ′ in the direction of line AA ′ where the height of the branches 1 reaches a minimum value.
  • the line B-B ′ denotes, in FIG. 2, the place where the branches are fully connected to the basket 2 of the racket.
  • the bulge 4 could be eliminated at least in its profile as shown in FIG. 2.
  • the height of the basket 2 of the racket being constant, it is between 25 and 27 mm, the ideal height being 26 mm.
  • the branches 3 therefore have, at the place where they separate from the basket 2, an identical height. This height gradually decreases to reach, at the height of line A-A ′, a value between 16.3 and 17.2 mm.
  • the ideal height corresponding on the other hand to the dimensions in the longitudinal direction of the racket given below is 16.8 mm.
  • the dimensions in the longitudinal direction of the racket are, as for the handle itself, i.e. the handle 3 and the arms 1, 382 mm.
  • the distance which then separates the line A-A ′ from the free end of the handle of the racket is between 215 and 255 mm.
  • the place where the height of the branches 3 reaches a minimum value is therefore around two-thirds the distance between the free end of the handle 3 and the point where the arms 1 connect to the basket 2.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Pulmonology (AREA)
  • Golf Clubs (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Toys (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Abstract

A racquet for tennis, squash or a similar sport, essentially comprising a handle and a head forming the string part, it being possible for the handle to be connected directly to the head or via two branches, characterised in that the abovementioned handle (3), if appropriate the abovementioned branches (1), has a zone of smaller section, the section of the handle, if appropriate of the above- mentioned branches, increasing progressively in the direction of the head of the racquet. <IMAGE>

Description

La présente invention se rapporte à une raquette de tennis, de squash ou de sport analogue.The present invention relates to a tennis, squash or similar sports racket.

On connaît du GB-A-1 321 235 une raquette dans laquelle la poignée et le panier sont raccordés par une tige tubulaire qui, afin de concilier les propriétés de résistance, de légèreté et de flexibilité, va en se rétrécissant en direction du panier de sorte que lorsque le panier de la raquette est chargé, la contrainte de surface à l'extrémité la plus étroite de la tige tubulaire est dans une plage de 80 à 110% de la contrainte de surface à l'extrémité la plus large de cette tige.GB-A-1 321 235 discloses a racket in which the handle and the basket are connected by a tubular rod which, in order to reconcile the properties of resistance, lightness and flexibility, tapers towards the basket. so that when the racket basket is loaded, the surface stress at the narrowest end of the tubular rod is in a range of 80-110% of the surface stress at the widest end of the rod .

Le but de l'invention est de réaliser une raquette dont les caractéristiques de frappe, dues notamment à une plus grande flexibilité du manche de la raquette, se trouvent considérablement améliorées par comparaison avec des raquettes obtenues par les techniques courantes faisant usage des matières dites "composites" présentant les caractéristiques décrites ci-dessus.The object of the invention is to produce a racket, the striking characteristics of which, due in particular to greater flexibility of the handle of the racket, are considerably improved in comparison with rackets obtained by current techniques making use of so-called materials. composites "having the characteristics described above.

L'invention a également pour objet de réaliser une raquette dont les vibrations résultant de la frappe de la balle sont sensiblement améliorées et leur transmission au bras du joueur considérablement atténuées.The object of the invention is also to produce a racket whose vibrations resulting from striking the ball are significantly improved and their transmission to the player's arm considerably attenuated.

Pour réaliser ces objectifs, l'invention propose une raquette comportant un manche constitué d'une poignée et de deux branches qui raccordent la poignée au panier, dans laquelle les branches précitées présentent, à partir de l'endroit où elles se raccordent au panier précité, une section dont la hauteur va en décroissant à partir de l'endroit précité en direction de la poignée précitée pour atteindre une section de hauteur minimale en un point qui est situé au deux tiers environ de la distance qui sépare l'extrémité libre de la poignée de la raquette de l'endroit où les branches se raccordent au panier de la raquette.To achieve these objectives, the invention provides a racket comprising a handle consisting of a handle and two branches which connect the handle to the basket, in which the aforementioned branches have, from the place where they connect to the aforementioned basket , a section whose height decreases from the aforementioned location towards the aforementioned handle to reach a minimum height section at a point which is located at about two thirds of the distance between the free end of the handle the racket from where the branches connect to the racket basket.

Toujours selon l'invention, le panier précité de la raquette présente une section de hauteur constante.Still according to the invention, the aforementioned basket of the racket has a section of constant height.

Dans une forme de réalisation préférentielle, la section de hauteur minimale précitée se situe, pour une longueur totale du manche de la raquette équivalant à environ 382 mm, à une distance de l'extrémité libre de la raquette qui se situe entre 215 et 255 mm.In a preferred embodiment, the aforementioned minimum height section is located, for a total length of the handle of the racket equivalent to approximately 382 mm, at a distance from the free end of the racket which is between 215 and 255 mm.

Toujours selon l'invention, la hauteur constante du panier de la raquette se situe entre 25 et 27 mm tandis que la hauteur minimale précitée des branches de la raquette se situe entre 16,3 et 17,2 mm et est de préférence de 16,8 mm.Still according to the invention, the constant height of the racket basket is between 25 and 27 mm while the aforementioned minimum height of the branches of the racket is between 16.3 and 17.2 mm and is preferably 16, 8 mm.

D'autres détails et avantages de l'invention ressortiront de la description qui sera donnée ci-après d'une raquette de tennis, de squash ou de sport analogue selon l'invention. Cette description n'est donnée qu'à titre d'exemple et ne limite pas l'invention.Other details and advantages of the invention will emerge from the description which will be given below of a tennis, squash or similar sport racket according to the invention. This description is given by way of example only and does not limit the invention.

La figure 1 est une vue en élévation d'une partie de la raquette selon l'invention, le coeur de la raquette formé d'une partie du panier, des deux branches et de la partie du manche située à la jonction des deux branches.Figure 1 is an elevational view of part of the racket according to the invention, the heart of the racket formed by a part of the basket, the two branches and the part of the handle located at the junction of the two branches.

La figure 2 est une vue de profil des mêmes parties de la raquette selon la figure 1.FIG. 2 is a side view of the same parts of the racket according to FIG. 1.

La raquette selon l'invention, réalisée comme dit dans le préambule, par une des techniques faisant appel à l'utilisation de matières dites "composites", est essentiellement caractérisée par la hauteur décroissante des branches 1 de la raquette à partir de l'endroit où celles-ci se raccordent au panier 2 en direction de la poignée 3 de la raquette.The racket according to the invention, produced as said in the preamble, by one of the techniques using the use of so-called "composite" materials, is essentially characterized by the decreasing height of the arms 1 of the racket from the point where these are connected to the basket 2 in the direction of the handle 3 of the racket.

Dans ce texte l'expression "hauteur", s'appliquant aussi bien au panier 2 qu'aux branches 1 de la raquette, désigne l'épaisseur de ces éléments de la raquette, vus de profil. Le profil de la raquette selon l'invention est reproduit partiellement à la figure 2. La raquette peut, selon cette figure, être vue posée verticalement sur son manche ou posée horizontalement.In this text the expression "height", applying both to basket 2 and to branches 1 of the racket, designates the thickness of these elements of the racket, seen in profile. The profile of the racket according to the invention is partially reproduced in Figure 2. The racket can, according to this figure, be seen placed vertically on its handle or placed horizontally.

La section de hauteur minimale est donc indiquée par la ligne A-A′ à la figure 2 et elle intervient dans cette partie du manche qui est constituée par les branches 1.The minimum height section is therefore indicated by the line A-A ′ in FIG. 2 and it occurs in this part of the handle which is constituted by the branches 1.

La figure 2 montre clairement que la hauteur des branches 1 va en diminuant depuis un endroit désigné par la ligne B-B′ en direction de la ligne A-A′ où la hauteur des branches 1 atteind une valeur minimale.Figure 2 clearly shows that the height of the branches 1 decreases from a place designated by line BB ′ in the direction of line AA ′ where the height of the branches 1 reaches a minimum value.

La ligne B-B′ désigne, à la figure 2, l'endroit où les branches se sont entièrement raccordées au panier 2 de la raquette.The line B-B ′ denotes, in FIG. 2, the place where the branches are fully connected to the basket 2 of the racket.

Au-delà de la ligne A-A′, en direction de l'extrémité libre du manche 3, on remarque encore un renflement 4 qui n'a pas d'influence sur la résistance ni la rigidité du manche de la raquette mais qui est destiné à donner naissance, par moulage ou injection, à la partie de la raquette formant poignée. La poignée présentera un profil adapté en vue d'une bonne prise du manche. Ce profil n'est pas représenté aux figures.Beyond the line AA ′, in the direction of the free end of the handle 3, there is also a bulge 4 which has no influence on the resistance or the rigidity of the handle of the racket but which is intended for give birth, by molding or injection, to the part of the racket forming a handle. The handle will have a suitable profile for a good grip of the handle. This profile is not shown in the figures.

Dans une variante possible le renflement 4 pourrait être supprimé tout au moins dans son profil tel que représenté à la figure 2.In a possible variant, the bulge 4 could be eliminated at least in its profile as shown in FIG. 2.

Les mesures données ci-après à titre d'exemple sont données parce qu'elles constituent une forme de réalisation préférentielle et assurent la plus grande flexibilité possible du manche combinée à une rigidité optimale du panier.The measures given below by way of example are given because they constitute a preferred embodiment and ensure the greatest possible flexibility of the handle combined with optimal rigidity of the basket.

La hauteur du panier 2 de la raquette étant constante, celle-ci se situe entre 25 et 27 mm, la hauteur idéale étant de 26 mm.The height of the basket 2 of the racket being constant, it is between 25 and 27 mm, the ideal height being 26 mm.

Les branches 3 ont donc, à l'endroit où elles se séparent du panier 2 une hauteur identique. Cette hauteur va progressivement en diminuant pour atteindre, à hauteur de la ligne A-A′, une valeur comprise entre 16,3 et 17,2 mm. La hauteur idéale correspondant d'autre part aux dimensions dans le sens longitudinal de la raquette donnée ci-après est de 16,8 mm.The branches 3 therefore have, at the place where they separate from the basket 2, an identical height. This height gradually decreases to reach, at the height of line A-A ′, a value between 16.3 and 17.2 mm. The ideal height corresponding on the other hand to the dimensions in the longitudinal direction of the racket given below is 16.8 mm.

Les dimensions dans le sens longitudinal de la raquette sont, quant au manche proprement dit, c.à.d. la poignée 3 et les branches 1, de 382 mm. La distance qui sépare alors la ligne A-A′ de l'extrémité libre du manche de la raquette se situe entre 215 et 255 mm.The dimensions in the longitudinal direction of the racket are, as for the handle itself, i.e. the handle 3 and the arms 1, 382 mm. The distance which then separates the line A-A ′ from the free end of the handle of the racket is between 215 and 255 mm.

L'endroit où la hauteur des branches 3 atteint une valeur minimale se situe donc aux environs des deux tiers de la distance qui sépare l'extrémité libre de la poignée 3 de l'endroit où les branches 1 se raccordent au panier 2.The place where the height of the branches 3 reaches a minimum value is therefore around two-thirds the distance between the free end of the handle 3 and the point where the arms 1 connect to the basket 2.

Claims (6)

  1. Tennis or squash racket, or racket intended for a similar sport, comprising a handle formed by a grip and two arms which connect the grip to the head, in which the said arms have, starting from the place at which they adjoin the said head, a cross-section whose height decreases from the said place towards the said grip to reach a cross-section of minimum height at a point located at about two thirds of the distance which separates the free end of the grip of the racket from the place where the arms adjoin the head of the racket.
  2. Racket according to claim 1, characterised in that the said head (2) of the racket has a constant height.
  3. Racket according to anyone of the claims 1 and 2, characterised in that the said cross-section of minimum height is located, for an overall length of the racket handle equal to about 382 mm, at a distance of between 215 and 255 mm from the free end of the racket handle.
  4. Racket according to anyone of the claims 1 to 3, characterised in that the constant height of the racket head is between 25 and 27 mm.
  5. Racket according to anyone of the claims 1 to 4, characterised in that the said minimum height of the arms 3 of the racket is between 16,3 and 17,2 mm.
  6. Racket according to claim 5, characterised in that the said minimum height of the arms 3 of the racket is 16,8 mm.
EP88201404A 1987-07-14 1988-07-05 Racket for tennis, squash or a similar sport Expired - Lifetime EP0299568B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88201404T ATE75154T1 (en) 1987-07-14 1988-07-05 RACKETS FOR BALL GAMES SUCH AS TENNIS OR SQUASH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE8700781 1987-07-14
BE8700781A BE1000689A6 (en) 1987-07-14 1987-07-14 Tennis racket, squash sport or similar.

Publications (3)

Publication Number Publication Date
EP0299568A2 EP0299568A2 (en) 1989-01-18
EP0299568A3 EP0299568A3 (en) 1989-08-16
EP0299568B1 true EP0299568B1 (en) 1992-04-22

Family

ID=3882767

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88201404A Expired - Lifetime EP0299568B1 (en) 1987-07-14 1988-07-05 Racket for tennis, squash or a similar sport

Country Status (6)

Country Link
EP (1) EP0299568B1 (en)
JP (1) JPS6429277A (en)
AT (1) ATE75154T1 (en)
BE (1) BE1000689A6 (en)
DE (1) DE3870340D1 (en)
ES (1) ES2030495T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE40793E1 (en) 1997-07-11 2009-06-23 Janssen Pharmaceutica, N.V. Bicyclic benzamides of 3-or 4-substituted 4-(aminomethyl)-piperidine derivatives

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0487963B1 (en) * 1990-11-26 1995-11-08 S.A. Donnay International Tennis racket

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1321235A (en) * 1969-10-29 1973-06-27 Dunlop Holdings Ltd Sports implements
JPS526377U (en) * 1975-06-27 1977-01-17
JPS52146329A (en) * 1976-05-27 1977-12-06 Nippon Gakki Seizo Kk Racket frame
DE3371286D1 (en) * 1983-09-07 1987-06-11 Mohammed Hussein Lotfy Racket for a ball game

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE40793E1 (en) 1997-07-11 2009-06-23 Janssen Pharmaceutica, N.V. Bicyclic benzamides of 3-or 4-substituted 4-(aminomethyl)-piperidine derivatives

Also Published As

Publication number Publication date
EP0299568A2 (en) 1989-01-18
EP0299568A3 (en) 1989-08-16
DE3870340D1 (en) 1992-05-27
ATE75154T1 (en) 1992-05-15
BE1000689A6 (en) 1989-03-14
ES2030495T3 (en) 1992-11-01
JPS6429277A (en) 1989-01-31

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