EP1463566A2 - Racket for hitting tennis balls and similar game bodies - Google Patents

Racket for hitting tennis balls and similar game bodies

Info

Publication number
EP1463566A2
EP1463566A2 EP03701492A EP03701492A EP1463566A2 EP 1463566 A2 EP1463566 A2 EP 1463566A2 EP 03701492 A EP03701492 A EP 03701492A EP 03701492 A EP03701492 A EP 03701492A EP 1463566 A2 EP1463566 A2 EP 1463566A2
Authority
EP
European Patent Office
Prior art keywords
racket
areas
racket according
vibration
succession
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
EP03701492A
Other languages
German (de)
French (fr)
Other versions
EP1463566B1 (en
Inventor
Georg Ignatius
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1463566A2 publication Critical patent/EP1463566A2/en
Application granted granted Critical
Publication of EP1463566B1 publication Critical patent/EP1463566B1/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
    • A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
    • A63B59/70—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00 with bent or angled lower parts for hitting a ball on the ground, on an ice-covered surface, or in the air, e.g. for hockey or hurling
    • 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
    • A63B60/48—Details or accessories of golf clubs, bats, rackets or the like with corrugated cross-section
    • 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
    • A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
    • A63B2102/18—Baseball, rounders or similar games
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
    • A63B2102/24—Ice hockey
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials
    • 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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
    • A63B59/50—Substantially rod-shaped bats for hitting a ball in the air, e.g. for baseball
    • 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
    • A63B60/002—Resonance frequency related characteristics

Definitions

  • the invention relates to a racket for loading tennis balls and similar game bodies. It is a racket which comprises an actuating part (BT) and an impact part (PT) which is in direct dynamic operative connection with the respective game body.
  • BT actuating part
  • PT impact part
  • Such rackets are of various designs on the market and are generally known.
  • the racquets for lawn tennis have an impact part with a frame support, to which a covering (BS), in particular a string covering, which fills the interior of the frame and acts as a ball impact surface, is fastened.
  • BS covering
  • This impact surface is subject to a strong dynamic stress due to the game body hitting at high speed.
  • These are essentially impulsive impulses with very steep flanks.
  • the corresponding compressive force impulses which act in the normal direction to the impact surface, are in turn converted into tensile force impulses by the covering and transmitted to the frame carrier. Due to its geometry, the latter is fundamentally a highly vibratory structure, which is therefore contained in the pulse edges. Frequencies can be excited to natural vibrations.
  • the given coupling also transmits the vibrations to the actuating part, in particular a handle, and to the hand or arm of the player.
  • the object of the invention is therefore to create a racket construction which enables an improved adaptation of the vibration behavior to the circumstances of the game processes and the requirements and peculiarities of the player.
  • the achievement of this object according to the invention is determined by the features of claim 1.
  • a first step in this regard is the provision of a large number of excellent spatial areas and / or area areas and / or line areas which differ from their respective surroundings by vibration-relevant, in particular resonance-relevant, material and / or shape or dimension parameters. In practice, the greatest possible number of such excellent areas should be sought. These marked areas are then to be arranged in the form of at least one sequence, which extends over at least part of the racket and which corresponds to at least one ordered series, in particular a mathematical or also an algorithmically determinable series. In practice, here again, comparatively large numbers of sequences to be arranged on the racket come into consideration.
  • the latter represent subdivisions of the racket oscillating body.
  • the natural frequency density and its distribution over the affected frequency band can be changed and adapted or optimized in a variety of ways according to the given functional requirements using various design measures in the design and dimensioning, as well as the choice of materials for the distinguished areas and the sequences.
  • FIG. 1 shows a first embodiment of a racket according to the invention with a surface view of the impact part
  • FIG. 3 shows a partial longitudinal section of a tubular racket handle with an outer and an inner sequence of excellent areas
  • FIG. 4 shows a perspective partial view of a racket handle with a multi-dimensional structure of successive areas.
  • the racket shown as an example in FIG. 1 comprises an actuating part BT and an impact part PT which is in direct dynamic operative connection with the game body or tennis ball.
  • the parts are provided with structures that influence the natural frequency spectrum, each consisting of a succession of a large number of excellent surface areas F or line areas L. These distinguished areas are determined by the fact that they are characterized by at least one part of their respective environment by at least one vibration-relevant, in particular resonance-relevant, material and / or shape or dimension parameter, in particular by different mass, mass density, deformation stiffness and / or damping differ.
  • the marked areas each form an ordered row that extends over at least part of the racket.
  • the impact part PT has a frame support TR, to which a covering BS, which in this case acts as a conventional string covering, and which fills the interior of the frame and acts as a ball impact surface, is fastened.
  • a first sequence AF1 extends in the example according to arrow P1 in the longitudinal direction of the frame carrier TR.
  • the associated marked areas F are arranged in the area of the frame surface. You are here e.g. formed as layer sections of substantially the same size which are applied by means of screen printing, contain metal and are thus more assoaded with respect to their surroundings.
  • the characteristic of the sequence AF1 is determined by the superimposition of a multiplicity of, in each case, equidistant rows of distinguished areas.
  • the distances between the marked areas F vary from row to row and are determined by an integer subdivision of the frame circumference, namely in the sense of a variance of the mutual distances of the marked areas F according to a harmonic row with the relative distance amounts 1 indicated in FIG / 2,1 / 3, 1/4, each based on the circumference of the closed frame support TR.
  • each row is closed with a frame scope. This is a preferred, but only singular design option within the overall scope of the inventive ideas.
  • the actuating part BT which is designed as a handle, likewise comprises a vibration-active structure with excellent areas L, again in the form of a plurality of superimposed, in each case equidistant sequences, which here, however, extend at least partially in the longitudinal direction of the handle. Areas L which are narrow-strip-shaped or have an approximately linear shape are provided, which facilitate a particularly delicate structure and thus effective for higher frequencies.
  • a large number of mutually equidistant sequences AF2 is again provided (only three indicated), the distance amounts of which (from sequence to sequence) correspond to a harmonic series 1 / 2.1 / 3.1 / 4.
  • vibration parameters other than distances between marked areas are also suitable for the effects according to the invention, such as material and / or shape or dimension parameters, in particular different mass, mass density, deformation stiffness and / or damping.
  • material and / or shape or dimension parameters in particular different mass, mass density, deformation stiffness and / or damping.
  • What is essential, however, is the use of related variances, possibly constants or corresponding combinations, at least in part of at least one sequence, in such a way that a vibration-active structure with a plurality of natural frequencies results.
  • At least in sections and at least approximately correspondingly harmonic, but also correspondingly geometrical rows of at least five divisions, in particular a plurality of such vibrationally structured sequences in mutual superimposition are of particular importance.
  • at least five successive sequences, in particular a plurality of such vibrationally structured sequences in mutual superposition have proven to be expedient or even necessary.
  • FIG. 2 shows an example of a sequence sequence in tubular racket handles BT according to a geometric series of variants.
  • Two-dimensional, ring-like vibration elements F2 for example made of metal-containing foils or similar screen printing layers, are arranged here in the longitudinal direction of the tube with mutual spacing on the outside of the tube.
  • the elements F2 have the same width al, while their distances are dimensioned according to a degressive geometric series x, x 2 , x 3 ... (x ⁇ 1).
  • FIG. 3 again shows the use of a geometric series, but with constant distances a2 between the vibration elements F3 successive in the longitudinal direction of the tube, the widths a2 of which, however, are now in accordance with a degressive geometric series x, x 2 , x 3 .... (x ⁇ 1) are measured.
  • such elements are arranged not only on the outside of the tube, but also on the surface of the inner cavity in a corresponding manner.
  • 4 shows - again on a tubular racket handle BT - vibration elements R, which determine excellent areas with spatial extension, in two multidimensional, essentially orthogonal sequences, namely according to arrow P2 in the tube axial direction and according to arrow P3 in the circumference of the tube - direction.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Golf Clubs (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Pinball Game Machines (AREA)
  • Massaging Devices (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The invention relates to a percussion instrument for games with percussively or impact-moved play body. According to the invention, the percussion instrument comprises an actuating part (BT) and an impact section (PT) embodied at least partially as a dimensionally stable solid body interacting with the play body in a directly dynamic manner. A plurality of excellent spatial areas and/or flat areas and/or linear areas are provided in order to enable a structure to be made, said structure having an improved adaptation to the vibrational behaviour to the events involved in the playing actions and the requirements and particularities of the player. Said areas are distinguished by means of at least one vibration-relevant material parameter, especially one resonance-relevant material parameter and/or form or measuring parameter, especially differing mass, density, resistance to deformability and/or damping of at least one part of the respective environment, forming a sequence extending over at least one part of the percussion instrument corresponding to at least one arranged sequence.

Description

Racket zur Beaufschlagung von Tennisbällen und ähnlichen Racket for loading tennis balls and the like
Spielkörperngame bodies
Die Erfindung betrifft ein Racket zur Beaufschlagung von Tennisbällen und ähnlichen Spielkörpern. Es geht dabei um ein Racket, welches ein Betätigungsteil (BT) und ein mit dem jeweiligen Spielkörper in unmittelbare dynamische Wirkverbindung tretendes Aufprallteil (PT) umfasst. Solche Rackets sind in verschiedenen Konstruktionen auf dem Markt und allgemein bekannt.The invention relates to a racket for loading tennis balls and similar game bodies. It is a racket which comprises an actuating part (BT) and an impact part (PT) which is in direct dynamic operative connection with the respective game body. Such rackets are of various designs on the market and are generally known.
Die Rackets für Rasentennis haben bekanntermaßen ein Aufprallteil mit einem Rahmenträger, an dem eine den Rahmeninnenraum füllende, als Ball-Prallfläche wirkende Bespannung (BS) , insbesondere eine Saiten-Bespannung, befestigt ist. Diese Prallfläche unterliegt unmittelbar einer starken dynamischen Beanspruchung durch den mit hoher Geschwindigkeit auftreffenden Spielkörper. Dabei handelt es sich im Wesentlichen um impulsförmige Stoßkräfte mit sehr steilen Flanken. Die entsprechenden, in Normalrichtung zur Prallfläche wirkenden Druckkraft-Impulse werden durch die Bespannung wiederum mit hoher Übersetzung in Zugkraft-Impulse umgesetzt und auf den Rahmenträger übertragen. Letzterer ist auf Grund seiner Geometrie grundsätzlich ein hochgradig schwingungsfähiges Gebilde, das somit durch die in den Impulsflanken enthaltenen. Frequenzen zu Eigenschwingungen angeregt werden kann. Durch die gegebene Kopplung werden die Schwingungen auch auf das Betätigungsteil, insbesondere einen Handgriff, und auf die Hand bzw. den Arm des Spielers übertragen.As is known, the racquets for lawn tennis have an impact part with a frame support, to which a covering (BS), in particular a string covering, which fills the interior of the frame and acts as a ball impact surface, is fastened. This impact surface is subject to a strong dynamic stress due to the game body hitting at high speed. These are essentially impulsive impulses with very steep flanks. The corresponding compressive force impulses, which act in the normal direction to the impact surface, are in turn converted into tensile force impulses by the covering and transmitted to the frame carrier. Due to its geometry, the latter is fundamentally a highly vibratory structure, which is therefore contained in the pulse edges. Frequencies can be excited to natural vibrations. The given coupling also transmits the vibrations to the actuating part, in particular a handle, and to the hand or arm of the player.
In Abhängigkeit von ihrer Frequenz und Amplitude haben solche Schwingungen ein beachtliches Störpotential für den Spielvorgang, und zwar u.a. hinsichtlich der jeweils vom Spieler gewünschten, differenzierten und feinfühligen Dosierung der Schlaghärte bzw. Return-Geschwindigkeit wie auch hinsichtlich der präzisen Bestimmung der Return-Richtung. Nicht zuletzt können sich dadurch auch körperlich schädigende Effekte für den Spieler ergeben ("Tennisarm").Depending on their frequency and amplitude, such vibrations have a considerable potential for interference in the game process, among other things. with regard to the differentiated and sensitive dosage of the impact hardness or return speed desired by the player as well as with regard to the precise determination of the return direction. Last but not least, this can also result in physically damaging effects for the player ("tennis elbow").
Summarische un«d/oder grob dimensionierte Dämpfungsmaßnahmen haben sich in diesem Zusammenhang als wenig wirksam oder unbe- friedigend erwiesen, weil dadurch im Allgemeinen auch das notwendige Reflexions ermögen des Rackets beeinträchtigt wird. Auch leidet dadurch im Allgemeinen das "Ballgefühl" des Spielers .In this context, total and / or roughly dimensioned damping measures have proven to be of little effect or proven to be peaceful, because it generally also affects the necessary reflection power of the racket. This also generally affects the player's "feeling of the ball".
Aufgabe der Erfindung ist daher die Schaffung einer Racketkon- struktion, die eine verbesserte Anpassung des Schwingungsverhaltens an die Gegebenheiten der Spielvorgänge und die Anforderungen sowie Eigenheiten des Spielers ermöglicht. Die erfindungsgemäße Lösung dieser Aufgabe ist bestimmt durch die Merkmale des Anspruchs 1. Merkmale wesentlicher Weiterbildungen und Optimierungen der Erfindung sind in den nachgeordneten Ansprüchen definiert.The object of the invention is therefore to create a racket construction which enables an improved adaptation of the vibration behavior to the circumstances of the game processes and the requirements and peculiarities of the player. The achievement of this object according to the invention is determined by the features of claim 1. Features of essential developments and optimizations of the invention are defined in the subordinate claims.
Die Wirkung der Konstruktionsmerkmale gemäß Anspruch 1 beruht u.a. auf der Beeinflussung des Eigenfrequenzspektrums des Ra- .ckets als Ganzen. Ein erster Schritt hierzu ist die Bereitstellung einer Vielzahl von ausgezeichneten Raumbereichen und/oder Flächenbereichen und/oder Linienbereichen, die sich durch schwingungsrelevante, insbesondere resonanzrelevante, Material- und/oder Form- bzw. Abmessungsparameter von ihrer jeweiligen Umgebung unterscheiden. Dabei ist in der Praxis eine möglichst große Anzahl solcher ausgezeichneter Bereiche anzustreben. Diese ausgezeichneten Bereiche sind dann in Form mindestens einer Aufeinanderfolge anzuordnen, die sich über wenigstens einen Teil des Rackets erstreckt und die mindestens einer geordneten Reihe entspricht, insbesondere einer mathematischen oder auch einer algorithmisch bestimmbaren Reihe. In der Praxis kommen hier wiederum vergleichsweise große Anzahlen von auf dem Racket anzuordnenden Aufeinanderfolgen in Betracht .The effect of the design features according to claim 1 is based, among other things. on influencing the natural frequency spectrum of the racket as a whole. A first step in this regard is the provision of a large number of excellent spatial areas and / or area areas and / or line areas which differ from their respective surroundings by vibration-relevant, in particular resonance-relevant, material and / or shape or dimension parameters. In practice, the greatest possible number of such excellent areas should be sought. These marked areas are then to be arranged in the form of at least one sequence, which extends over at least part of the racket and which corresponds to at least one ordered series, in particular a mathematical or also an algorithmically determinable series. In practice, here again, comparatively large numbers of sequences to be arranged on the racket come into consideration.
Da die ausgezeichneten Bereiche mit ihren gegenseitigen Abständen und damit auch die Aufeinanderfolgen auf, an oder in dem Racket angeordnet sind, so stellen die letzteren Unterteilungen des Racket-Schwingkörpers dar. Dies führt in Bezug auf den ursprünglichen, d.h. nicht unterteilten Schwingkörper zu zusätzlichen, und zwar im Allgemeinen höheren Eigenfrequenzen und auch zu einer Anhebung der ursprünglichen Eigenfrequenzen, d.h. zu einem entsprechend veränderten Eigenfrequenzspektrum. Dabei kann die Eigenfrequenzdichte und deren Verteilung über das betroffene Frequenzband durch verschiedene Gestaltungsmaßnahmen an der Konstruktion und Bemessung sowie Materialauswahl der ausgezeichneten Bereiche und der Aufeinanderfolgen in vielfältiger Weise gemäß jeweils gegebenen funktionalen Anforderungen verändert und angepasst bzw. optimiert werden.Since the marked areas with their mutual distances and thus also the successions are arranged on, on or in the racket, the latter represent subdivisions of the racket oscillating body. This leads to additional, and in relation to the original, ie non-subdivided oscillating body although generally higher natural frequencies and also to an increase in the original natural frequencies, ie to a correspondingly changed natural frequency spectrum. The natural frequency density and its distribution over the affected frequency band can be changed and adapted or optimized in a variety of ways according to the given functional requirements using various design measures in the design and dimensioning, as well as the choice of materials for the distinguished areas and the sequences.
Bei der Beaufschlagung mit einem Stoßimpuls, dessen Energie infolge seiner im Zeitverlauf steilen Flanken auf einen breiten Frequenzbereich verteilt ist, werden die Eigenfrequenzen des veränderten Rackets gemäß dem nun gegebenen Spektrum, das einen im Allgemeinen bei höheren Frequenzen liegenden Schwerpunkt aufweist, mit entsprechend höherfrequenter Verteilung angeregt. Da aber die Schwingungsamplitude bei gegebener Schwingungsenergie mit zunehmender Frequenz abnimmt, so werden die Schwingungsamplituden des Rackets infolge der Gliederung des Schwingkörpers mit den Aufeinanderfolgen der ausgezeichneten Bereiche jedenfalls im Allgemeinen vermindert. Da es aber die Schwingungsamplituden sind, die vom Spieler vor allem wahrgenommen werden und die Spielqualität beeinträchtigen können, ist die erfindungsgemäße Grundkonstruktion grundsätzlich für die Lösung der Erfindungsaufgäbe geeignet.When a shock pulse is applied, the energy of which is distributed over a wide frequency range due to its steep edges over time, the natural frequencies of the modified racket are excited with a correspondingly higher-frequency distribution in accordance with the spectrum now given, which generally has a center of gravity at higher frequencies , However, since the oscillation amplitude decreases with increasing frequency with a given oscillation energy, the oscillation amplitudes of the racket are generally reduced as a result of the structure of the oscillating body with the succession of the marked areas. However, since it is the vibration amplitudes which are perceived by the player above all and which can impair the quality of the game, the basic construction according to the invention is fundamentally suitable for solving the tasks of the invention.
Die Wirkungsweise und die Vorteile der Erfindung und der Merkmale ihrer wesentlichen Weiterbildungen werden anhand der in den Zeichnungen schematisch dargestellten Beispiele näher erläutert. Darin zeigen:The mode of operation and the advantages of the invention and the features of its essential further developments are explained in more detail with reference to the examples shown schematically in the drawings. In it show:
Fig.l eine erste Ausführung eines erfindungsgemäßen Rackets mit Flächendraufsieht des Aufprallteils,1 shows a first embodiment of a racket according to the invention with a surface view of the impact part,
Fig.2 einen Teil-Längsschnitt eines rohrförmigen Racket-Hand- griffs mit einer äußeren Aufeinanderfolge von ausgezeichneten Bereichen,2 shows a partial longitudinal section of a tubular racket handle with an outer succession of excellent areas,
Fig.3 einen Teil-Längsschnitt eines rohrförmigen Racket-Hand- griffs mit einer äußeren und einer inneren Aufeinanderfolge von ausgezeichneten Bereichen, und3 shows a partial longitudinal section of a tubular racket handle with an outer and an inner sequence of excellent areas, and
Fig.4 eine perspektivische Teilansicht eines Racket-Handgriffs mit einer sich mehrdimensional erstreckenden Gliederung von Aufeinanderfolgen ausgezeichneter Bereiche.4 shows a perspective partial view of a racket handle with a multi-dimensional structure of successive areas.
Das als Beispiel in Fig.l gezeigte Racket umfasst ein Betätigungsteil BT und ein mit dem Spielkörper bzw. Tennisball in unmittelbare dynamische Wirkverbindung tretendes Aufprallteil PT. Die Teile sind mit das Eigenfrequenzspektrum beeinflussenden Gliederungen versehen, die aus je einer Aufeinanderfolge einer Vielzahl von ausgezeichneten Flächenbereichen F bzw. von Linienbereichen L bestehen. Diese ausgezeichneten Bereiche sind dadurch bestimmt, dass sie sich durch mindestens einen schwingungsrelevanten, insbesondere resonanzrelevanten, Material- und/oder Form- bzw. Abmessungsparameter, insbesondere durch unterschiedliche Masse, Massendichte, Verfor ungsSteifheit und/oder Dämpfung, von wenigstens einem Teil ihrer jeweiligen Umgebung unterscheiden. Innerhalb dieser Aufeinanderfolgen bilden die ausgezeichneten Bereiche jeweils eine geordnete Reihe, die sich über mindestens einen Teil des Rackets erstreckt.The racket shown as an example in FIG. 1 comprises an actuating part BT and an impact part PT which is in direct dynamic operative connection with the game body or tennis ball. The parts are provided with structures that influence the natural frequency spectrum, each consisting of a succession of a large number of excellent surface areas F or line areas L. These distinguished areas are determined by the fact that they are characterized by at least one part of their respective environment by at least one vibration-relevant, in particular resonance-relevant, material and / or shape or dimension parameter, in particular by different mass, mass density, deformation stiffness and / or damping differ. Within these sequences, the marked areas each form an ordered row that extends over at least part of the racket.
Das Aufprallteil PT weist einen Rahmenträger TR auf, an dem eine den Rahmeninnenraum füllende, als Ball-Prallfläche wirkende Bespannung BS, hier eine an sich übliche Saiten-Bespannung, befestigt ist. Eine erste Aufeinanderfolge AFl erstreckt sich im Beispiel gemäß Pfeil Pl in Längsrichtung des Rahmenträgers TR. Die zugehörigen ausgezeichneten Bereiche F sind im Bereich der Rahmenoberfläche angeordnet. Sie sind hier z.B. als mittels Siebdruck aufgebrachte, metallhaltige und damit bezüglich ihrer Umgebung stärker assebeladene Schichtabschnitte von im Wesentlichen gleicher Größe ausgebildet.The impact part PT has a frame support TR, to which a covering BS, which in this case acts as a conventional string covering, and which fills the interior of the frame and acts as a ball impact surface, is fastened. A first sequence AF1 extends in the example according to arrow P1 in the longitudinal direction of the frame carrier TR. The associated marked areas F are arranged in the area of the frame surface. You are here e.g. formed as layer sections of substantially the same size which are applied by means of screen printing, contain metal and are thus more assoaded with respect to their surroundings.
Die Charakteristik der Aufeinanderfolge AFl ist bestimmt durch die Überlagerung einer Vielzahl von jeweils in sich äquidistanten Reihen ausgezeichneter Bereiche. Die Abstände zwischen den ausgezeichneten Bereichen F variieren von Reihe zu Reihe und sind bestimmt durch eine ganzzahlige Unterteilung des Rahmenumfangs , und zwar im Sinne einer Varianz der gegenseitigen Abstände der ausgezeichneten Bereiche F entsprechend einer harmonischen Reihe mit den in Fig.l angedeuteten Abstands-Relativbeträgen 1/2,1/3, 1/4, jeweils bezogen auf den Umfang des geschlossenen Rahmenträgers TR. Infolgedessen ist jede Reihe mit einem Rahmenumfang abgeschlossen. Dies ist eine bevorzugte, jedoch nur singuläre Gestaltungsmöglichkeit im Gesamtrahmen der Erfindungsgedanken.The characteristic of the sequence AF1 is determined by the superimposition of a multiplicity of, in each case, equidistant rows of distinguished areas. The distances between the marked areas F vary from row to row and are determined by an integer subdivision of the frame circumference, namely in the sense of a variance of the mutual distances of the marked areas F according to a harmonic row with the relative distance amounts 1 indicated in FIG / 2,1 / 3, 1/4, each based on the circumference of the closed frame support TR. As a result, each row is closed with a frame scope. This is a preferred, but only singular design option within the overall scope of the inventive ideas.
Der Übersichtlichkeit halber ist die Darstellung der Überlagerungen in Fig.l nach diesen drei ersten Reihen entfallen. Tatsächlich werden solche Gliederungen im Allgemeinen sehr viel weiter und bis zu relativ feinen Unterteilungen fortgesetzt, wozu es dann entsprechend kleiner Abmessungen der ausgezeichneten Bereiche bzw. einer zusätzlichen Varianz der Bereichs-Flächenabmessungen bedarf.For the sake of clarity, the representation of the overlays in Fig.l after these three first rows has been omitted. In fact, such classifications are generally continued much further and up to relatively fine subdivisions, which then requires correspondingly small dimensions of the marked areas or an additional variance of the area surface dimensions.
Das als Handgriff ausgebildete Betätigungsteil BT umfasst ebenfalls eine schwingungsaktive Gliederung mit ausgezeichneten Bereichen L und zwar wiederum in Form einer Vielzahl von überlagerten, jeweils in sich äquidistanten Aufeinanderfolgen, die sich hier jedoch wenigstens teilweise in Längsrichtung des Handgriffs erstrecken. Es sind hier schmal-streifenförmige bzw. annähernd linienförmig ausgezeichnete Bereiche L vorgesehen, die eine besonders feingliedrige und damit für höhere Frequenzen wirksame Struktur erleichtern. Es ist wiederum eine Vielzahl von jeweils in sich äquidistanten Aufeinanderfolgen AF2 vorgesehen (nur drei angedeutet) deren Distanzbeträge (von Aufeinanderfolge zu Aufeinanderfolge) einer harmonischen Reihe 1/2,1/3,1/4 entsprechen.The actuating part BT, which is designed as a handle, likewise comprises a vibration-active structure with excellent areas L, again in the form of a plurality of superimposed, in each case equidistant sequences, which here, however, extend at least partially in the longitudinal direction of the handle. Areas L which are narrow-strip-shaped or have an approximately linear shape are provided, which facilitate a particularly delicate structure and thus effective for higher frequencies. A large number of mutually equidistant sequences AF2 is again provided (only three indicated), the distance amounts of which (from sequence to sequence) correspond to a harmonic series 1 / 2.1 / 3.1 / 4.
In diesem Zusammenhang ist darauf hinzuweisen, dass sich mit solchen Überlagerungen nicht nur progressiv bzw. degressiv Variante Abstufungen oder Reihen verwirklichen lassen, sondern auch oszillatorisch Variante. Im Beispiel gemäß Fig.l sind die Varianten Größen durch Abstände zwischen ausgezeichneten Bereichen L gegeben. Demgemäß sind bereits bei dieser geringen Anzahl von Überlagerungen bzw. Aufeinanderfolgen zwei Abstandsminima zwischen ausgezeichneten Bereichen der 1/3-Reihe und der 1/4-Reihe mit Umkehr zwischen Progressiv!tat und Degressivität zu erkennen. Im Rahmen der Erfindungsgedanken kann aber auch gegebenenfalls mit Vorteil eine oszillatorische Varianz auch ohne oder mit nur unwesentlichen oder geringfügigen Überlagerungen durch direkte Bemessung von Schwingungsparametern und Gestaltung von Reihen verwirklicht werden. Ganz allgemein kommen für die erfindungsgemäßen Effekte auch andere Schwingungsparameter als Abstände zwischen ausgezeichneten Bereichen in Betracht, wie z.B. Material- und/oder Form- bzw. Abmessungsparameter, insbesondere unterschiedliche Masse, Massendichte, Verformungssteifheit und/oder Dämpfung. Wesentlich ist jedoch die Anwendung von diesbezüglichen Varianzen, gegebenenfalls von Konstanzen oder entsprechenden Kombinationen, mindestens in einem Teil wenigstens einer Aufeinanderfolge, derart, dass sich eine schwingungsaktive Gliederung mit einer Mehrzahl von Eigenfrequenzen ergibt. Besondere Bedeutung haben dabei wenigstens abschnittsweise und wenigstens annähernd entsprechend harmonischen, aber auch entsprechend geometrischen Reihen ausgebildete sich wenigstens über fünf Teilungen erstreckende Aufeinanderfolgen, insbesondere eine Mehrzahl von solchen schwingungsaktiv gegliederten Aufeinanderfolgen in gegenseitiger Überlagerung. Für wesentliche Anwendungen haben sich wenigstens über fünf Teilungen erstreckende Aufeinanderfolgen, insbesondere eine Mehrzahl von solchen schwingungsaktiv gegliederten Aufeinanderfolgen in gegenseitiger Überlagerung, als zweckmäßig oder sogar notwendig erwiesen.In this context, it should be pointed out that such overlays can not only be used to implement gradations or rows in a progressive or degressive variant, but also in an oscillatory variant. In the example according to FIG. 1, the variants sizes are given by distances between marked areas L. Accordingly, even with this small number of superimpositions or sequences, two distance minima between excellent areas of the 1/3 series and the 1/4 series with reversal between progressive action and degressivity can be seen. Within the scope of the inventive idea, however, an oscillatory variance can also advantageously be realized, if appropriate, without or with only insignificant or minor superimpositions by direct measurement of vibration parameters and design of rows. In general, vibration parameters other than distances between marked areas are also suitable for the effects according to the invention, such as material and / or shape or dimension parameters, in particular different mass, mass density, deformation stiffness and / or damping. What is essential, however, is the use of related variances, possibly constants or corresponding combinations, at least in part of at least one sequence, in such a way that a vibration-active structure with a plurality of natural frequencies results. At least in sections and at least approximately correspondingly harmonic, but also correspondingly geometrical rows of at least five divisions, in particular a plurality of such vibrationally structured sequences in mutual superimposition are of particular importance. For essential applications, at least five successive sequences, in particular a plurality of such vibrationally structured sequences in mutual superposition, have proven to be expedient or even necessary.
Fig.2 zeigt ein Beispiel einer gemäß einer geometrischen Reihe Varianten Bereichs-Aufeinanderfolgen in rohrförmigen Racket- Handgriffen BT. Hier sind flächenhafte, ringartige Schwingungselemente F2, z.B. aus metallhaltigen Folien oder ebensolchen Siebdruckschichten, in Rohrlängsrichtung mit gegenseitigen Abständen an der Rohraußenseite angeordnet. Die Elemente F2 haben die gleiche Breite al, während ihre Abstände gemäß einer degressiven geometrischen Reihe x, x2, x3.... (x <1) bemessen sind.2 shows an example of a sequence sequence in tubular racket handles BT according to a geometric series of variants. Two-dimensional, ring-like vibration elements F2, for example made of metal-containing foils or similar screen printing layers, are arranged here in the longitudinal direction of the tube with mutual spacing on the outside of the tube. The elements F2 have the same width al, while their distances are dimensioned according to a degressive geometric series x, x 2 , x 3 ... (x <1).
Fig.3 zeigt wiederum die Anwendung einer geometrischen Reihe, jedoch mit konstanten Abständen a2 zwischen den in Rohrlängsrichtung aufeinanderfolgenden Schwingungselementen F3, deren Breiten a2 jedoch nun gemäß einer degressiven geometrischen Reihe x, x2, x3 .... (x <1) bemessen sind. Solche Elemente sind im Beispiel nicht nur an der Rohraußenseite, sondern auch an der Oberfläche des Innen-Hohlraumes in ganz entsprechender Weise angeordnet . Fig.4 zeigt - wiederum an einem rohrartigen Racket-Handgriff BT - Schwingungselernente R, die ausgezeichnete Bereiche mit räumlicher Erstreckung bestimmen, in zwei mehrdimensionalen, im Wesentlichen orthogonalen Aufeinanderfolgen, nämlich gemäß Pfeil P2 in Rohr-Axialrichtung und gemäß Pfeil P3 in Rohr-Umfangs- richtung. Dies bedeutet einen wichtigen Unterschied zu den jeweils in einer Richtung angeordneten Überlagerungen gemäß Fig.l. Diese Variante ermöglicht eine differenzierte, gegebenenfalls auch gezielt übereinstimmende Beeinflussung von in Rohrlängsrichtung und in Rohrumfangsrichtung fortschreitenden Wellen bzw. von sich in diese Richtungen erstreckenden Stehwellen. 3 again shows the use of a geometric series, but with constant distances a2 between the vibration elements F3 successive in the longitudinal direction of the tube, the widths a2 of which, however, are now in accordance with a degressive geometric series x, x 2 , x 3 .... (x <1) are measured. In the example, such elements are arranged not only on the outside of the tube, but also on the surface of the inner cavity in a corresponding manner. 4 shows - again on a tubular racket handle BT - vibration elements R, which determine excellent areas with spatial extension, in two multidimensional, essentially orthogonal sequences, namely according to arrow P2 in the tube axial direction and according to arrow P3 in the circumference of the tube - direction. This means an important difference to the overlays arranged in one direction according to Fig.l. This variant enables a differentiated, possibly also targeted, matching influencing of waves progressing in the pipe longitudinal direction and in the pipe circumferential direction or of standing waves extending in these directions.

Claims

Ansprüche Expectations
1. Racket zur Beaufschlagung von Tennisbällen und ähnlichen Spielkörpern, umfassend ein Betätigungsteil (BT) und ein mit dem Spielkörper in unmittelbare dynamische Wirkverbindung tretendes Aufprallteil (PT) , gekennzeichnet durch eine Vielzahl von ausgezeichneten Raumbereichen und/oder Flächenbereichen und/oder Linienbereichen (R, F, L) , die sich durch mindestens einen schwingungsrelevanten, insbesondere resonanzrelevanten, Material- und/oder Form- bzw. Abmessungsparameter, insbesondere durch unterschiedliche Masse, Massendichte, Verformungssteifheit und/oder Dämpfung, von wenigstens einem Teil ihrer jeweiligen Umgebung unterscheiden, und die mindestens eine sich über wenigstens einen Teil des Rackets erstreckende Aufeinanderfolge bilden, die mindestens einer geordneten Reihe entspricht.1. Racket for the action of tennis balls and similar game bodies, comprising an actuating part (BT) and an impact part (PT) that is in direct dynamic operative connection with the game body, characterized by a large number of excellent spatial areas and / or area areas and / or line areas (R, F, L), which differ from at least a part of their respective surroundings by at least one vibration-relevant, in particular resonance-relevant, material and / or shape or dimension parameter, in particular by different mass, mass density, deformation rigidity and / or damping, and the form at least one sequence extending over at least part of the racket, which corresponds to at least one ordered row.
2. Racket nach Anspruch 1, insbesondere Tennis-Racket, das ein Ball-Aufprallteil (PT) mit einem Rahmenträger (TR) aufweist, an dem eine den Rahmeninnenraum füllende, als Ball-Prallfläche wirkende Bespannung (BS) , insbesondere eine Saiten-Bespannung, befestigt ist, dadurch gekennzeichnet, dass mindestens eine Aufeinanderfolge ausgezeichneter Bereiche an oder in dem Rahmenträger angeordnet ist.2. Racket according to claim 1, in particular tennis racket, which has a ball impact part (PT) with a frame carrier (TR) on which a frame interior filling, acting as a ball baffle covering (BS), in particular a string covering , is fixed, characterized in that at least one succession of excellent areas is arranged on or in the frame support.
3. Racket nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass mindestens eine sich wenigstens teilweise in Längsrichtung des Rahmenträgers (TR) ersreckende Aufeinanderfolge von ausgezeichneten Bereichen vorgesehen ist.3. Racket according to claim 1 or 2, characterized in that at least one at least partially extending in the longitudinal direction of the frame carrier (TR) extending sequence of excellent areas is provided.
4. Racket nach einem der vorangehenden Ansprüche, insbesondere Tennis-Racket, mit einem insbesondere als Handgriff ausgebildeten Betätigungsteil (BT) , dadurch gekennzeichnet, dass mindestens eine Aufeinanderfolge" ausgezeichneter Bereiche an oder in dem Betätigungsteil (BT) des Rackets angeordnet ist.4. Racket according to one of the preceding claims, in particular tennis racket, with an actuating part (BT) designed in particular as a handle, characterized in that at least one succession of "excellent areas is arranged on or in the actuating part (BT) of the racquet.
5. Racket nach Anspruch 4, dadurch gekennzeichnet, dass mindestens eine sich wenigstens teilweise in Längsrichtung des als Handgriff ausgebildeten Betätigungsteils (BT) erstreckende Aufeinanderfolge von ausgezeichneten Bereichen vorgesehen ist. 5. Racket according to claim 4, characterized in that at least one at least partially extending in the longitudinal direction of the handle part formed as an actuating part (BT) is a succession of excellent areas.
6. Racket nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eine Aufeinanderfolge ausgezeichneter Bereiche vorgesehen ist, die sich an einer Oberfläche oder in einem oberflächennahen Teil des Rackets erstreckt.6. Racket according to one of the preceding claims, characterized in that at least one sequence of marked areas is provided, which extends on a surface or in a part of the racket near the surface.
7. Racket einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eine Aufeinanderfolge ausgezeichneter Bereiche vorgesehen ist, die sich innerhalb des Festkörpervolumens oder in einem Innenraum des Rackets erstreckt.7. Racket one of the preceding claims, characterized in that at least one succession of excellent areas is provided, which extends within the solid volume or in an interior of the racket.
8. Racket nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eine Aufeinanderfolge durch langgestreckt, insbesondere streifenartig geformte ausgezeichnete Bereiche gebildet ist.8. Racket according to one of the preceding claims, characterized in that at least one succession is formed by elongated, in particular strip-like shaped excellent areas.
9. Racket nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass mindestens in einem Teil wenigstens einer Aufeinanderfolge die gegenseitigen Randabstände und/oder die Mittenabstände ausgezeichneter Bereiche in der Folgerichtung der Reihe derart variant bemessen sind, dass sich eine schwingungsaktive Gliederung mit einer Mehrzahl von Eigenfrequenzen ergibt .9. Racket according to one of the preceding claims, characterized in that at least in a part of at least one succession the mutual edge distances and / or the center distances of excellent areas in the following direction of the row are dimensioned in such a way that a vibration-active structure with a plurality of natural frequencies results.
10. Racket nach Anspruch 9, dadurch gekennzeichnet, dass mindestens in einem Teil wenigstens einer Aufeinanderfolge eine bezüglich der Folgerichtung progressive und/oder degressive Varianz bezüglich der ausgezeichneten Bereiche oder ihrer schwingungsrelevanten Parameter vorgesehen ist.10. Racket according to claim 9, characterized in that a progressive and / or degressive variance with respect to the marked areas or their vibration-relevant parameters is provided in at least one part of at least one sequence.
11. Racket nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass mindestens eine wenigstens abschnittsweise oszillierend Variante Aufeinanderfolge von ausgezeichneten Bereichen vorgesehen ist.11. Racket according to claim 9 or 10, characterized in that at least one at least sectionally oscillating variant, a succession of excellent areas is provided.
12. Racket nach einem der Ansprüche 9 bis 11, dadurch gekennzeichnet, dass mindestens eine wenigstens abschnittsweise gemäß einer statistisch Varianten, insbesondere gemäß einer von einem Zufallsgenerator erzeugbaren Reihe Variante Aufeinanderfolge von ausgezeichneten Bereichen vorgesehen ist. 12. Racket according to one of claims 9 to 11, characterized in that at least one section at least in sections is provided according to a statistical variant, in particular according to a row variant that can be generated by a random generator, a succession of distinguished regions.
13. Racket nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eine wenigstens abschnittsweise und wenigstens annähernd entsprechend einer harmonischen Reihe ausgebildete Aufeinanderfolge von ausgezeichneten Bereichen vorgesehen ist.13. Racket according to one of the preceding claims, characterized in that at least one sequence of distinguished areas is provided, which is formed at least in sections and at least approximately in accordance with a harmonic series.
14. Racket nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eine wenigstens abschnittsweise und wenigstens annähernd entsprechend einer geometrischen Reihe ausgebildete Aufeinanderfolge von ausgezeichneten Bereichen vorgesehen ist.14. Racket according to one of the preceding claims, characterized in that at least one sequence of distinguished regions is provided, which is formed at least in sections and at least approximately in accordance with a geometric series.
15. Racket nach einem der vorangehenden Ansprüche, gekennzeichnet durch wenigstens eine schwingungsaktive Gliederung, die mindestens eine sich linienförmig, flächenhaft oder räumlich erstreckende Ueberlagerungsstruktur aus wenigstens zwei unterschiedlichen Abstands- und/oder Unterteilungs- und/oder Werte- Aufeinanderfolgen enthält .15. Racket according to one of the preceding claims, characterized by at least one vibration-active structure, which contains at least one linear, areal or spatially extending overlay structure from at least two different spacing and / or subdivision and / or value sequences.
16. Racket nach Anspruch 15, dadurch gekennzeichnet, dass die ÜberlagerungsStruktur wenigstens zwei unterschiedliche, in sich jedoch wenigstens annähernd äquidistante Abstands- und/oder Unterteilungs- und/oder Werte-Aufeinanderfolgen- enthält.16. Racket according to claim 15, characterized in that the overlay structure contains at least two different, but at least approximately equidistant spacing and / or subdivision and / or value sequences.
17. Racket nach Anspruch 15 oder 16, dadurch gekennzeichnet, dass die Werte und/oder die Verteilung mindestens eines Schwingungsparameters der ausgezeichneten Bereiche jeweils innerhalb einer der einander überlagerten Aufeinanderfolgen wenigstens annähernd gleich bemessen sind.17. Racket according to claim 15 or 16, characterized in that the values and / or the distribution of at least one vibration parameter of the marked areas are each dimensioned at least approximately the same within one of the superimposed sequences.
18. Racket nach einem der Ansprüche 15 bis 17, dadurch gekennzeichnet, dass die Werte und/oder die Verteilung mindestens eines Schwingungsparameters der aufeinander folgenden ausgezeichneten Bereiche jeweils innerhalb einer der einander überlagerten Reihen wenigstens annähernd bzw. wenigstens abschnittsweise entsprechend mindestens einer harmonischen oder mindestens einer geometrischen Reihe oder entsprechend einer Ueberlagerung solcher Reihen bemessen sind. 18. Racket according to one of claims 15 to 17, characterized in that the values and / or the distribution of at least one vibration parameter of the successive marked areas each within one of the rows superimposed on one another at least approximately or at least in sections corresponding to at least one harmonic or at least one geometric series or are dimensioned according to an overlay of such series.
19. Racket nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eine Variante, insbesondere harmonisch oder geometrisch Variante, sich mehrdimensional bzw. in eine Mehrzahl von Raum- oder Flächenrichtungen erstreckende Aufeinanderfolge von ausgzeichneten Bereichen vorgesehen ist.19. Racket according to one of the preceding claims, characterized in that at least one variant, in particular a harmonic or geometrical variant, is provided multidimensionally or in a plurality of spatial or surface directions, a succession of excellent areas.
20. Racket nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eine variant schwingungsaktive, vorzugsweise harmonisch oder geometrisch Variante, sich wenigstens über fünf Teilungen erstreckende Aufeinanderfolge, insbesondere eine Mehrzahl von solchen schwingungsaktiv gegliederten Aufeinanderfolgen in gegenseitiger Überlagerung, vorgesehen ist.20. Racket according to one of the preceding claims, characterized in that at least one variant vibrationally active, preferably harmonic or geometric variant, at least over five divisions, in particular a plurality of such vibrationally structured sequences in mutual superposition, is provided.
21. Racket nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eine längs wenigstens einer Kante des Racketkörpers verteilt angeordnete, schwingungsaktiv Variante Reihe von ausgezeichneten Bereichen vorgesehen ist.21. Racket according to one of the preceding claims, characterized in that at least one vibration-active variant row of excellent regions is provided distributed along at least one edge of the racket body.
22. Racket nach einem der vorangehend Ansprüche, gekennzeichnet durch mindestens eine schwingungsaktiv gegliederte Oberflächenschicht bzw. mindestens einen Schichtabschnitt mit Granulat-, Lack- und/oder Folienbeschichtung, insbesondere mit Metallgehalt. 22. Racket according to one of the preceding claims, characterized by at least one vibration-actively structured surface layer or at least one layer section with a granulate, lacquer and / or film coating, in particular with a metal content.
EP03701492A 2002-01-10 2003-01-07 Racket for hitting tennis balls and similar game bodies Expired - Lifetime EP1463566B1 (en)

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DE10200745A DE10200745A1 (en) 2002-01-10 2002-01-10 Racket for the application of tennis balls and similar playing bodies
DE10200745 2002-01-10
PCT/EP2003/000076 WO2003057322A2 (en) 2002-01-10 2003-01-07 Racket for hitting tennis balls and similar game bodies

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JP (1) JP2005532842A (en)
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Also Published As

Publication number Publication date
EP1463566B1 (en) 2006-05-24
WO2003057322A3 (en) 2004-01-15
US20050148404A1 (en) 2005-07-07
DE10200745A1 (en) 2003-11-13
WO2003057322A2 (en) 2003-07-17
AU2003202546A1 (en) 2003-07-24
WO2003063967A2 (en) 2003-08-07
JP2005532842A (en) 2005-11-04
WO2003063967A3 (en) 2004-01-15
ATE327010T1 (en) 2006-06-15
DE50303467D1 (en) 2006-06-29
AU2003202546A8 (en) 2003-07-24

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