WO2004035151A1 - Children's tennis racket and system enabling children to learn how to play tennis - Google Patents
Children's tennis racket and system enabling children to learn how to play tennis Download PDFInfo
- Publication number
- WO2004035151A1 WO2004035151A1 PCT/EP2003/010479 EP0310479W WO2004035151A1 WO 2004035151 A1 WO2004035151 A1 WO 2004035151A1 EP 0310479 W EP0310479 W EP 0310479W WO 2004035151 A1 WO2004035151 A1 WO 2004035151A1
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- WIPO (PCT)
- Prior art keywords
- children
- tennis
- racket
- frame
- handle
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Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C19/00—Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor
- A63C19/02—Shaping of the surface of courts according to the necessities of the different games
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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
- A63B49/10—Frames made of non-metallic materials, other than wood
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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
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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
- A63B2049/0201—Frames with defined head dimensions
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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
- A63B2049/0212—Frames with defined weight
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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
- A63B2208/00—Characteristics or parameters related to the user or player
- A63B2208/12—Characteristics or parameters related to the user or player specially adapted for children
Definitions
- the invention relates to a children's tennis racket according to the preamble of claims 1, 3 and a tennis learning system for children according to the preamble of claims 15, 16 and 18.
- a known children's tennis learning system according to DE-U 299 22 294 even leads the children gradually from the service fields to the vicinity of and to the baseline by using displaceable markings at a distance from the network which gradually move the children's baseline backwards, so to speak.
- the known stub version has a minimum weight of 210 g, an inner frame surface at most corresponding to the inner frame surface of an adult midsize tennis racket, string spacing in the sweet spot area String spacing in the sweet spot area of adult tennis rackets, and a balance point that is measured from the handle by more than 5 cm inside the frame.
- the short version has a minimum weight of 230 g, string spacing in the sweet spot area corresponding to the string spacing in the sweet spot area of the adult racket, a frame inner surface corresponding to the frame inner surface of an adult midsize tennis racket, and a balance point that is more than 3 cm in the frame inner surface.
- the junior version is not shorter than the shortest women's adult tennis racket, has a minimum weight of 250 g, an inner frame area corresponding to an adult midsize tennis racket, string spacing in the sweet spot area corresponding to the string spacing in the sweet spot area of the adult tennis racket, and the balance point more than 1 cm inside the frame.
- the extreme grip heaviness not only makes handling much more difficult, it also makes the children's tennis racket subjectively appear much heavier than it is. Due to the very unfavorable balance point, the children's tennis rackets are difficult to play for children aged 4 to 9 years, even within the face of the club.
- the invention has for its object to provide a children's tennis racket that corresponds to the physical and physiological properties of the child and significantly facilitates the learning of the tennis game for children, and to create a children's tennis learning system with which the children learn the tennis game with as much as possible many and strong experiences of success quickly get past the initial threshold that previously required an unjustified selection.
- the extremely lightweight, child-friendly and specially balanced children's tennis racket may still be a little heavier for a child than a modern adult tennis racket for an adult. Nevertheless, it turns out surprisingly that the children get along well with such child tennis rackets that are deliberately designed and designed for children and learn quickly to hit the balls, play the balls over the net, and are able to do so in a very short time, at least To play ball changes with the trainer and possibly even with other children because the weight disadvantage is largely absent and the balance is right, so that the children have intense and frequent successes that are fun and enjoyable for them when they learn the game of tennis and that they support the natural play instinct.
- the children's tennis racket with the weight reduced to a maximum of 180 g compared to the previously available children's tennis rackets, the enlarged inner frame area of at least 600 cm 2 corresponding to at least the inner frame area of an adult oversize tennis racket and with string spacings of at least 18 mm in the sweet spot area is the first time a child-friendly tennis racket that makes handling considerably easier for children.
- the children's tennis rackets are also child-friendly and can be played successfully if the string spacing in the sweet spot area is less than 18 mm.
- the large frame inner surface creates an extra large striking surface with a large sweet spot area, so that balls can be controlled even if they are not hit cleanly.
- the large string spacing at least in the sweet spot area, leads to a desirable trampoline requirement. perfect and reduces the string mass, whereby the string tension can also be low for children. Although this is not absolutely necessary, softer and / or larger children's tennis balls or corresponding foam balls should be played with such children's tennis racquets, because these make it easier for the children to learn the tennis game quickly, well and above all with joy.
- the well-known tennis learning system with cross markings that can be moved on a standard playing field at a distance from the network, with which the learning children are gradually guided from the service fields to and finally to the baseline, leads to unexpectedly rapid learning progress when using children's tennis rackets be that weigh a maximum of 180 g, have a very large frame inner surface and a string spacing at least in the sweet spot area of at least 18 mm, and where the balance point max. 1 cm inside the face or closer to the end of the handle. Excellent learning progress can already be achieved when the children's tennis rackets are better balanced than conventional children's tennis rackets and, thanks to their lightweight construction, weigh no more than 180 g.
- At least three categories of children's tennis racket are useful for e.g. three groups of children: these are beginners between the ages of 3 and 5 years, beginners between the ages of 5 and 7 years, and advanced students between the ages of around 6 and 7 years.
- the little ones or the youngest play with the stubby club which is not only extremely light and very short, but also has an extremely large playing surface with a pronounced trampoline effect.
- This version weighs a maximum of 140 g, preferably only 100 g, and has a striking surface at least the size of an oversized adult tennis racket up to about 720 cm 2 .
- the string spacings are at least 18 mm at least in the sweet spot area.
- the relatively rough string grid in String bed results in a pronounced trampoline effect and, of course, despite the large face, in a significantly reduced string mass, whereby the string tension can be chosen to be relatively low.
- the string spacing can also be narrower than 18 mm.
- the balance point is at most 1, 0 cm in the inner frame area or behind.
- the balance point of the stub version could even be up to 2.0 cm in the inner surface of the frame, and the racket would still be much better to play than known stub versions due to the low weight, in which the balance point is set up to 5 cm and more inside is. Regardless of how far the balance point is in the inner surface of the frame, the stub version is in any case better balanced than known stub versions due to the lightweight construction.
- the short version is suitable for children, for example for 5- to 7-year-old beginners. It weighs a maximum of 160 g, rather only 170 to 140 g, and has a striking area of at least 600 cm 2 .
- the balance point may lie at the most in the bridge of the racket heart, better further to the end of the grip, so that the racket is well balanced. In the short version, however, the balance point can also lie slightly within the face, so that the short version is better balanced than known short versions thanks to the lightweight design.
- the junior version for example, is around 63.8 cm long and is particularly suitable for advanced students aged between 6 and 7 years. Thanks to the center of gravity or balance point optimally placed behind the bridge, the feeling when playing is that the weight is almost only half the weight of a junior tennis racket known for this age and skill level group.
- This low weight, the significantly larger playing surface for example, roughly corresponds to the playing surface of an adult oversize tennis racket, and the large string spacing, at least in the sweet spot area, means that children in this group of children not only quickly play well, but also hit hard.
- the balance point could also be slightly within the frame area.
- the string spacing in the sweet spot area could also be less than 18 mm.
- the lightweight design (with fiber material or light metal) surprisingly leads to the subjective impression of an extremely light and particularly easy-to-handle racket, for example in comparison with a previously common children's racket in the same category.
- the lightweight design of the new children's tennis racket means that the conventional construction of children's tennis rackets has been abandoned.
- the frame is either made using only high-strength fiber materials such as carbon or aramid fibers, possibly in specially designed forms. Glass fibers and optionally filler material, e.g. Consciously used in adult rackets in order to maintain sufficient stiffness and mass, especially in the racket head, are completely omitted.
- the lightweight frame can also be formed from a light metal hollow profile, preferably with frame dimensions that are only half to a third of the frame dimensions of adult light metal tennis rackets.
- the lightweight construction reduces weight and optimizes the position of the balance point.
- Another important feature is a handle with a minimum handle length corresponding to two children's hands, on the one hand, to be able to teach children to play with two hands, on the other hand, to enable the often instinctively chosen two-hand grip without any problems. It is important that the grip extends as close as possible to the face, at least in the stub version, because children initially tend to grip as shortly as possible.
- the grip strength should be smaller than the smallest adult grip strength, and should be specially tailored to the children's hand.
- the learning progress is particularly successful if the learning system uses the movable cross markings, the extremely light and balanced children's tennis rackets and balls suitable for children, ie larger foam balls or larger or lighter or softer children's tennis balls.
- Successful should mean that the children not only get over the initial threshold faster but that more children who are curious about tennis will remain loyal to tennis later than before, which means that far fewer newcomers due to frustration or shame or because of parents' discontent will soon give up tennis again.
- the tennis learning system for children which includes cross markings that can be offset from the network on a standard playing field, children's tennis rackets, and child-friendly tennis balls that are softer than standard tennis balls is particularly effective if stub versions, short versions and, depending on the body size and / or playing strength, are assigned to the children Junior versions of children's tennis rackets with a weight including stringing of a maximum of 180 g combined with differently soft tennis balls can be provided.
- the respective combination of the children's tennis racket, selected according to body size and / or skill level, in a lightweight design with the tennis ball that matches this children's tennis racket conveys the greatest fun for the children.
- a small player with the stub version and with the cross mark placed on his side of the field at a smaller distance from the net can play against a larger player who uses the junior version and on his side of the field the cross mark is placed at a greater distance from the net.
- differences in size or strength of play can be compensated, similarly to the handicap that is common in golf.
- Fig. 3 shows a children's tennis racket in a junior version
- Fig. 4 basic components of a children's tennis learning system.
- the versions of children's tennis rackets shown in FIGS. 1 to 3 include a stub version K1 (FIG. 1), a short version K2 (FIG. 2), and a junior version K3 (FIG. 3).
- the stub version K1 in FIG. 1 is covered with a weight of at most 140 g or even less, and has a frame 1 and a handle 2 attached directly to the frame 1 with a handle length I corresponding to at least two children's hand widths.
- the grip strength G is suitable for children and adapted to the child's hand, ie, in any case smaller than the smallest grip strength of commercially available adult tennis rackets.
- the frame 1 has an inner frame area F1 which is between approximately 630 cm 2 and approximately 720 cm 2 in size.
- the frame 1 forms a string bed 3 for the stringing, the string bed 3 being designed such that the string spacings x and y between the transverse and longitudinal strings 4, 5 are at least 18 mm in size, at least in the extremely large sweet spot area P indicated by the dashed line.
- the string spacing in the stub version K1 could even be between about 20 mm and about 30 mm.
- the stub version K1 is particularly suitable for 3 to 5 year old beginners.
- the balance point S in the longitudinal axis of the racket (about which the racket tilts over a roller with the racket head forward) lies at most 1, 0 cm in the inner surface of the frame (dimension Z), or closer to the handle 2.
- the string spacings in the Sweet spot area can also be chosen smaller than 18 mm.
- the weight of the covered stub version could even be about 150 g, the stub version expediently having a length of about 55 cm.
- the short version K2 in Fig. 2 is slightly longer than the stub version of Fig. 1, wherein the frame 1 can be connected to the handle 2 via a conventional racket heart with a bridge B.
- the handle length I corresponds to at least two children's hand widths.
- the grip strength is also chosen to be child-friendly.
- the weight, including covering is a maximum of 160 g.
- the inner frame area is larger than, for example, the inner frame area of an adult oversize tennis racket and is, for example, 650 cm 2 .
- the string spacings at least in the sweet spot area are at least 18 mm, and can be up to about 24 mm.
- the short version K2 in Fig. 2 is particularly well suited for 5 to 7 year old beginners.
- the balance point S lies at most in the bridge B or better behind (area Z ').
- the string spacing in the sweet spot area could also be less than 18 mm.
- the balance point S can optionally lie somewhat within the frame area F2.
- the short version K2 can have a length of about 59 cm, for example.
- the junior version K3 in FIG. 3 has a racket length L of, for example, 63.8 cm.
- the weight, including covering, is at most 180 g or even less.
- the inner frame area corresponds, for example, to the inner frame area of an adult oversize tennis racket, ie it is approximately 650 cm 2 in size.
- the string spacings, at least in the sweet spot area, are at least 18 mm and can even be around 22 mm.
- the junior version K3 is particularly suitable for around 6 to 7 year old advanced children.
- the balance point S lies in the heart, ie within an area Z "which ends at the bridge B.
- the string spacing in the sweet spot area can also be less than 18 mm.
- the balance point S can also be approximately in the bridge B.
- the frame 1 is a lightweight construction.
- a possible embodiment variant is a frame 1 exclusively using high-strength fiber material such as carbon or aramid fibers, which are stabilized in a plastic matrix, and with the omission of glass fibers and / or filler material in relation to adult rackets of a similar design, with other forms of production possibly being used than for adults -Tennistrainr.
- a lightweight design made of light metal is conceivable, ie a light metal hollow profile that is just so stable that it integrates the string permitted.
- the frame dimensions of the light metal version are preferably only half to about a third of the frame dimensions of an adult light metal tennis racket. What is meant here is the depth dimension of the frame 1 perpendicular to the striking surface and the transverse dimension in the direction of the striking surface.
- the frame area which is extremely enlarged with each version, together with the optimized balance and the large string spacings, leads to a pronounced trampoline effect and an extremely large sweet spot, i.e. too high acceleration of the ball and good ball control even when balls are hit uncleanly.
- the string spacing can also be selected similarly to that of adult rackets or only slightly larger.
- the stub version K1 in Fig. 1 is particularly well suited for playing with foam balls larger than conventional tennis balls.
- the short version K2 in Fig. 2 is particularly suitable for playing with special children's play balls, i.e. Foam or beginner balls.
- the junior version K3 in Fig. 3 is suitable for playing with conventional tennis balls, but also primarily for playing with children's balls such as foam balls or lighter or softer or larger children's balls.
- FIG. 4 shows the components of a children's tennis learning system JL with which particularly good learning successes can be achieved using the versions K1, K2, K3 of FIGS. 1 to 3.
- the children's learning system is played on a standard playing field with baselines 7, a net 8, T-lines 9, single side lines 10 and, if necessary, double side lines 11, with cross marks M that can be moved at a distance from the network being used gradually to the respective baseline used to move from the T line 9 in the direction of and finally up to the base line 7 in the direction of the double arrow 12.
- the game is played either with larger foam balls BS or with child-friendly lighter and / or softer and / or larger children's tennis balls BT.
- the children are gradually brought from the game initially only in the service fields to the game in deeper fields and finally across the full depth of the field.
- the game can be operated in a competitive manner, the cross marks M set according to the age group or skill level and standardized suitable ball types are used.
- the following concept is appropriate for the children's learning system JL:
- the three different versions of the children's tennis rackets are e.g. differently coded optically, as well as the soft, child-friendly BT tennis balls, which can be lighter and / or smaller than standard tennis balls.
- the stub version K1 e.g. Tennis balls BT with the weakest jumping behavior used.
- the different versions K1, K2, K3 may be assigned to the children depending on their skill level.
- the tennis learning system JL can also include skill level coding means for the children, e.g. T-shirts, sweatbands, caps, headbands or the like, which the children have to work out so to speak.
- These coding means could correspond to the coding of the tennis racket versions and / or the tennis balls BT and are, for example, worn on the body.
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Abstract
Description
Kinder-Tennisschläger und Kinder-Tennislernsystem Children's tennis racket and children's tennis learning system
Die Erfindung betrifft einen Kinder-Tennisschläger gemäß Oberbegriff des Anspruchs 1 ,3 sowie ein Tennis-Lernsystem für Kinder gemäß Oberbegriff des Anspruchs 15,16 und 18.The invention relates to a children's tennis racket according to the preamble of claims 1, 3 and a tennis learning system for children according to the preamble of claims 15, 16 and 18.
Kindern ab etwa 3 ΛA Jahren das Tennisspielen so zu lehren, dass sie dabei Spaß haben und möglichst bald eigenen Antrieb entwickeln, spielen zu wollen, erweist sich trotz hierfür entwickelter Lernsysteme und auf Kinder zugeschnittener Spielweisen als schwierig. So lässt man Kinder zunächst nur in den Aufschlagfeldern spielen, und mit sogenannten Kinder-Tennisschlägern, weicheren Bällen, größeren Bällen oder größeren Schaumstoffbällen. Ein bekanntes Kinder-Tennislernsystem gemäß DE-U 299 22 294 führt die Kinder sogar stufenweise von den Aufschlagfeldern allmählich bis in die Nähe der und zur Grundlinie, indem im Abstand vom Netz versetzbare Markierungen benutzt werden, die sozusagen die Kindergrundlinie allmählich nach hinten versetzen. Dabei müssen Kinder möglichst schnell über die Anfangsschwelle aus Frust und Lächerlichkeit durch möglichst viele Erfolgserlebnisse hinwegkommen, um Freude und Spaß zu haben, den natürlichen Spieltrieb zu behalten und eigene Initiative zu entwickeln. Die Handhabung des Kinder-Tennisschlägers ist jedoch ein grundsätzliches Problem für ein Kind. Der Grund ist der nicht kindgerechte Kinder-Tennisschläger. Es gibt bisher nämlich nur Kinder-Tennisschläger, die denselben Aufbau, meist auch die gleiche Bespannung, wie Erwachsenen-Tennisschläger eigentlich minderer Qualität haben, und nur kürzer als diese sind. Vergleicht man die Handkraft, die Armkraft und die Körpermasse der Kinder mit der Handkraft, der Armkraft, und der Körpermasse von Erwachsenen, dann ist der Kinder-Tennisschläger für die Kinder mindestens fünfmal so schwer wie ein Erwachsenen-Tennisschläger für einen Erwachsenen. Dazu kommt der Nachteil, dass alle bekannten Kinder-Tennisschläger wegen ihrer Bauweise sehr schlecht ausbalanciert sind, d.h. der Balance-Punkt des Kinder- Tennisschlägers viel zu weit vom Griff entfernt liegt, d.h. sogar weit im Inneren der Rahmenfläche, so dass die zu schweren Kinder-Tennisschläger auch extrem grifflastig sind. Wegen der noch nicht gut entwickelten Motorik, der kindlichen langsamen Reaktion und rascher Ermüdung durch die Überforderung kommen Kinder mit dem für sie viel zu schweren Kinder-Tennisschläger schlecht zurecht. Obwohl Kinder- Tennisschläger oberflächlich stets aktuell designt werden, wurde bisher nicht daran gedacht, von der, weil kostengünstigen, althergebrachten Herstellung der Kinder- Tennisschläger wie preiswerte Erwachsenen-Tennisschläger abzugehen, da das Problem der nicht kindgerechten, viel zu schweren und extrem grifflastigen Kinderschläger nicht erkannt worden war. Seitens der Eltern und der Trainer existiert erheblicher Bedarf, Kinder das Tennisspiel effizient und kindgerecht zu lehren. Diesem Bedarf wird mit den bekannten Kinder-Tennisschlägern bisher nicht Rechnung getragen.Teaching children from about 3 Λ A to play tennis in such a way that they have fun and develop their own drive to play as soon as possible, proves to be difficult despite the learning systems developed for this and the play styles tailored to children. For example, children are initially only allowed to play in the service fields and with so-called children's tennis rackets, softer balls, larger balls or larger foam balls. A known children's tennis learning system according to DE-U 299 22 294 even leads the children gradually from the service fields to the vicinity of and to the baseline by using displaceable markings at a distance from the network which gradually move the children's baseline backwards, so to speak. Children have to get as quickly as possible over the initial threshold of frustration and ridicule through as many success experiences as possible in order to have joy and fun, to keep the natural play instinct and to develop their own initiative. However, handling the children's tennis racket is a fundamental problem for a child. The reason is that the children's tennis racket is not suitable for children. So far, there are only children's tennis rackets that have the same structure, usually the same covering, as adult tennis rackets are actually of lower quality, and are only shorter than this. If you compare the hand strength, arm strength and body mass of the children with the hand strength, arm strength, and body mass of adults, then the children's tennis racket for the children is at least five times as heavy as an adult tennis racket for an adult. In addition, there is the disadvantage that all known children's tennis rackets are very poorly balanced because of their construction, ie the balance point of the children's tennis racket is far too far from the handle, ie even far inside the frame surface, so that the children who are too heavy -Tennis rackets are also extremely finger-heavy. Because of the not yet well-developed motor skills, the child's slow reaction and rapid fatigue due to excessive demands, children are having trouble coping with the children's tennis racket, which is much too heavy for them. Although child Up-to-date tennis rackets are always superficially designed, so far there has been no thought of going away from the inexpensive, traditional manufacture of children's tennis rackets like inexpensive adult tennis rackets, since the problem of child rackets that are not child-friendly, much too heavy and extremely heavy on the handles was not recognized , There is a considerable need on the part of the parents and the trainer to teach children to play tennis efficiently and in a way that is appropriate for children. So far, this need has not been met with the well-known children's tennis rackets.
Es sind drei Versionen von Kinder-Tennisschlägern auf dem Markt, nämlich eine meist 21 ,5 Zoll kurze Stummelversion, eine meist 23 Zoll kurze Kurzversion und eine meist 25 Zoll lange Juniorversion. Da diese Kinder-Tennisschläger mit den Materialkompositionen, den Aufbauten und in den Produktionsformen für Erwachsenen- Tennisschläger gefertigt werden, hat die bekannte Stummelversion ein Mindestgewicht von 210 g, eine Rahmeninnenfläche allenfalls entsprechend der Rahmeninnenfläche eines Erwachsenen-Midsize-Tennisschlägers, Saitenabstände im Sweetspotbereich entsprechend den Saitenabständen im Sweetspotbereich von Erwachsenen-Tennisschlägern, und einen Balancepunkt, der vom Griff aus gemessen um mehr als 5 cm im Inneren der Rahmeninnenfläche liegt. Die Kurzversion hat ein Mindestgewicht von 230 g, Saitenabstände im Sweetspotbereich entsprechend den Saitenabständen im Sweetspotbereich des Erwachsenen-Schlägers, eine Rahmeninnenfläche entsprechend der Rahmeninnenfläche eines Erwachsenen-Midsize- Tennisschlägers, und einen Balancepunkt, der weiter als 3 cm in der Rahmeninnenfläche liegt. Die Juniorversion ist nicht kürzer als der kürzeste Damen- Erwachsenen-Tennisschläger, hat ein Mindestgewicht von 250 g, eine Rahmeninnenfläche entsprechend einem Erwachsenen-Midsize-Tennisschläger, Saitenabstände im Sweetspotbereich entsprechend den Saitenabständen im Sweetspotbereich des Erwachsenen-Tennisschlägers, und den Balancepunkt weiter als 1 cm in der Rahmeninnenfläche. Die extreme Grifflastigkeit erschwert nicht nur die Handhabung erheblich, sondern lässt den Kinder-Tennisschläger subjektiv noch viel schwerer erscheinen als er ist. Die Kinder-Tennisschläger sind auch aufgrund des sehr ungünstigen Balancepunktes weit innerhalb der Schlagfläche schlecht bis kaum spielbar für Kinder im Alter von 4 - 9 Jahren. Der Erfindung liegt die Aufgabe zugrunde, einen Kinder-Tennisschläger anzugeben, der den körperlichen und physiologischen Eigenschaften des Kindes entspricht und das Erlernen des Tennisspiels für Kinder wesentlich erleichtert, sowie ein Kinder- Tennislernsystem zu schaffen, mit dem die Kinder beim Erlernen des Tennisspiels mit möglichst vielen und starken Erfolgserlebnissen rasch über die bisher eine ungerechtfertigte Selektion bedingende Anfangsschwelle hinwegkommen.There are three versions of children's tennis rackets on the market, namely a mostly 21.5 inch short stub version, a mostly 23 inch short version and a mostly 25 inch long junior version. Since these children's tennis rackets are made with the material compositions, the structures and in the production forms for adult tennis rackets, the known stub version has a minimum weight of 210 g, an inner frame surface at most corresponding to the inner frame surface of an adult midsize tennis racket, string spacing in the sweet spot area String spacing in the sweet spot area of adult tennis rackets, and a balance point that is measured from the handle by more than 5 cm inside the frame. The short version has a minimum weight of 230 g, string spacing in the sweet spot area corresponding to the string spacing in the sweet spot area of the adult racket, a frame inner surface corresponding to the frame inner surface of an adult midsize tennis racket, and a balance point that is more than 3 cm in the frame inner surface. The junior version is not shorter than the shortest women's adult tennis racket, has a minimum weight of 250 g, an inner frame area corresponding to an adult midsize tennis racket, string spacing in the sweet spot area corresponding to the string spacing in the sweet spot area of the adult tennis racket, and the balance point more than 1 cm inside the frame. The extreme grip heaviness not only makes handling much more difficult, it also makes the children's tennis racket subjectively appear much heavier than it is. Due to the very unfavorable balance point, the children's tennis rackets are difficult to play for children aged 4 to 9 years, even within the face of the club. The invention has for its object to provide a children's tennis racket that corresponds to the physical and physiological properties of the child and significantly facilitates the learning of the tennis game for children, and to create a children's tennis learning system with which the children learn the tennis game with as much as possible many and strong experiences of success quickly get past the initial threshold that previously required an unjustified selection.
Die gestellte Aufgabe wird mit den Merkmalen des Anspruchs 1 , des Anspruchs 3, des Anspruchs 15, des Anspruchs 16 und des Anspruchs 18 gelöst.The stated object is achieved with the features of claim 1, claim 3, claim 15, claim 16 and claim 18.
Der in extremer Leichtbauweise kindgerecht und speziell ausbalanciert ausgebildete Kinder-Tennisschläger ist für ein Kind zwar gegebenenfalls immer noch etwas schwerer als ein moderner Erwachsenen-Tennisschläger für einen Erwachsenen. Dennoch zeigt sich überraschend, dass die Kinder mit solchen bewusst kindgerecht hergestellten und ausgelegten Kinder-Tennisschlägern bestens zurecht kommen und rasch lernen, die Bälle zu treffen, die Bälle über das Netz zu spielen, und bereits in sehr kurzer Zeit in der Lage sind, zumindest mit dem Trainer und gegebenenfalls sogar mit anderen Kindern Ballwechsel zu spielen, weil der Gewichtsnachteil weitestgehend fehlt und die Balance stimmt, so dass die Kinder beim Erlernen des Tennisspiels intensive und häufige Erfolgserlebnisse haben, die ihnen Spaß und Freude bereiten, und dem natürlichen Spieltrieb entgegenkommen.The extremely lightweight, child-friendly and specially balanced children's tennis racket may still be a little heavier for a child than a modern adult tennis racket for an adult. Nevertheless, it turns out surprisingly that the children get along well with such child tennis rackets that are deliberately designed and designed for children and learn quickly to hit the balls, play the balls over the net, and are able to do so in a very short time, at least To play ball changes with the trainer and possibly even with other children because the weight disadvantage is largely absent and the balance is right, so that the children have intense and frequent successes that are fun and enjoyable for them when they learn the game of tennis and that they support the natural play instinct.
Der Kinder-Tennisschläger mit dem gegenüber den bisher verfügbaren Kinder- Tennisschlägern auf höchstens 180 g verringerten Gewicht, der vergrößerten Rahmeninnenfläche von mindestens 600 cm2 entsprechend mindestens der Rahmeninnenfläche eines Erwachsenen-Oversize-Tennisschlägers und mit Saitenabständen zumindest von 18 mm im Sweetspotbereich, ist erstmals ein kindgerechter Kinder- Tennisschläger , der den Kindern die Handhabung erheblich leichter macht. Die Kinder-Tennisschläger sind auch Kindgerecht und erfolgreich zu spielen, falls der Saitenabstand im Sweetspotbereich kleiner als 18 mm ist. Die große Rahmeninnenfläche ergibt eine extra große Schlagfläche mit großem Sweetspotbereich, so dass Bälle auch kontrollierbar sind, wenn sie nicht sauber getroffen werden. Der zumindest im Sweetspotbereich große Saitenabstand führt zu einem Wünschswerten Trampolinef- fekt und reduziert die Saitenmasse, wobei auch die Saitenspannung kindgerecht niedrig sein kann. Obwohl dies nicht unbedingt erforderlich ist, sollten mit solchen Kinder- Tennisschlägern weichere und/oder größere Kinder-Tennisbälle oder entsprechende Schaumstoffbälle gespielt werden, weil diese es den Kindern flankierend erleichtern, das Tennisspiel rasch, gut und vor allem mit Freude zu erlernen.The children's tennis racket with the weight reduced to a maximum of 180 g compared to the previously available children's tennis rackets, the enlarged inner frame area of at least 600 cm 2 corresponding to at least the inner frame area of an adult oversize tennis racket and with string spacings of at least 18 mm in the sweet spot area is the first time a child-friendly tennis racket that makes handling considerably easier for children. The children's tennis rackets are also child-friendly and can be played successfully if the string spacing in the sweet spot area is less than 18 mm. The large frame inner surface creates an extra large striking surface with a large sweet spot area, so that balls can be controlled even if they are not hit cleanly. The large string spacing, at least in the sweet spot area, leads to a desirable trampoline requirement. perfect and reduces the string mass, whereby the string tension can also be low for children. Although this is not absolutely necessary, softer and / or larger children's tennis balls or corresponding foam balls should be played with such children's tennis racquets, because these make it easier for the children to learn the tennis game quickly, well and above all with joy.
Das an sich bekannte Tennis-Lernsystem mit auf einem Standard-Spielfeld im Abstand vom Netz versetzbaren Quermarkierungen, mit denen die lernenden Kinder schrittweise von den Aufschlagfeldern weiter zur und schließlich an die Grundlinie geführt werden, führt zu unerwartet raschen Lernfortschritten, wenn Kinder- Tennisschläger eingesetzt werden, die höchstens 180 g schwer sind, eine sehr große Rahmeninnenfläche und einen Saitenabstand zumindest im Sweetspotbereich von mindestens 18 mm haben, und bei denen der Balancepunkt max. 1 cm innerhalb der Schlagfläche oder näher zum Griffende liegt. Hervorragende Lernfortschritte ergeben sich bereits, wenn die Kinder-Tennisschläger besser ausbalanciert sind als bisher übliche Kinder-Tennisschläger, und dank der Leichtbauweise ein Gewicht von höchstens 180 g haben. Bei Anwendung dieses Kinder-Tennislernsystems lassen sich Kinder außerordentlich effektiv über die natürliche Anfangsschwelle beim Erlernen des Tennisspiels hinwegbringen, weil sie Freude und Spaß am Spielenlernen haben, rasch starke und häufige Erfolgserlebnisse erzielen, und das Kernproblem des zu schweren und schlecht ausbalancierten Kinder-Tennisschlägers weggefallen ist.The well-known tennis learning system with cross markings that can be moved on a standard playing field at a distance from the network, with which the learning children are gradually guided from the service fields to and finally to the baseline, leads to unexpectedly rapid learning progress when using children's tennis rackets be that weigh a maximum of 180 g, have a very large frame inner surface and a string spacing at least in the sweet spot area of at least 18 mm, and where the balance point max. 1 cm inside the face or closer to the end of the handle. Excellent learning progress can already be achieved when the children's tennis rackets are better balanced than conventional children's tennis rackets and, thanks to their lightweight construction, weigh no more than 180 g. With the use of this children's tennis learning system, children can be moved extremely effectively beyond the natural initial threshold when learning to play tennis, because they enjoy and enjoy learning to play, quickly achieve strong and frequent successes, and the core problem of the too heavy and poorly balanced children's tennis racket is eliminated is.
Zweckmäßig sind mindestens drei Kategorien des Kinder-Tennisschlägers für z.B. drei Kindergruppen: Dies sind Anfänger mit einem Alterzwischen 3 und 5 Jahren, Anfänger mit einem Alterzwischen 5 und 7 Jahren, und Fortgeschrittene mit einem Alter zwischen etwa 6 und 7 Jahren.At least three categories of children's tennis racket are useful for e.g. three groups of children: these are beginners between the ages of 3 and 5 years, beginners between the ages of 5 and 7 years, and advanced students between the ages of around 6 and 7 years.
Die Kleinsten bzw. Jüngsten spielen mit dem Stummelschläger, der nicht nur extrem leicht und sehr kurz ist, sondern auch eine extrem große Schlagfläche mit ausgeprägtem Trampolineffekt hat. Diese Version wiegt bespannt höchstens 140 g, vorzugsweise nur sogar 100 g, und hat eine Schlagfläche mindestens in der Größe eines Oversi- ze-Erwachsenen-Tennisschlägers bis zu etwa 720 cm2. Die Saitenabstände sind zumindest imSweetspotbereich mindestens 18 mm. Der relativ grobe Saitenraster im Saitenbett resultiert in einem ausgeprägten Trampulineffekt und natürlich trotz der großen Schlagfläche in deutlich reduzierter Saitenmasse, wobei die Saitenspannung relativ niedrig gewählt werden kann. Die Saitenabstände können aber auch enger als 18 mm sein. Der Balancepunkt liegt höchstens 1 ,0 cm in der Rahmeninnenfläche oder dahinter. Allerdings könnte der Balancepunkt bei der Stummelversion sogar bis zu 2,0 cm in der Rahmeninnnefläche liegen, und der Schläger wäre wegen des geringen Gewichts immer noch weitaus besser zu spielen als bekannte Stummelversionen, bei denen der Balancepunkt bis zu 5 cm und mehr nach Innen gesetzt ist. Unabhängig davon, wie weit der Balancepunkt in der Rahmeninnenfläche liegt, ist die Stummelversion aufgrund der Leichtbauweise in jedem Fall besser ausbalanciert als bekannte Stummelversionen.The little ones or the youngest play with the stubby club, which is not only extremely light and very short, but also has an extremely large playing surface with a pronounced trampoline effect. This version weighs a maximum of 140 g, preferably only 100 g, and has a striking surface at least the size of an oversized adult tennis racket up to about 720 cm 2 . The string spacings are at least 18 mm at least in the sweet spot area. The relatively rough string grid in String bed results in a pronounced trampoline effect and, of course, despite the large face, in a significantly reduced string mass, whereby the string tension can be chosen to be relatively low. The string spacing can also be narrower than 18 mm. The balance point is at most 1, 0 cm in the inner frame area or behind. However, the balance point of the stub version could even be up to 2.0 cm in the inner surface of the frame, and the racket would still be much better to play than known stub versions due to the low weight, in which the balance point is set up to 5 cm and more inside is. Regardless of how far the balance point is in the inner surface of the frame, the stub version is in any case better balanced than known stub versions due to the lightweight construction.
Die Kurzversion ist kindgerecht beispielsweise für 5- bis 7-jährige Anfänger. Sie ist maximal 160 g schwer, eher nur 170 bis 140 g schwer, und hat eine Schlagfläche von mindestens 600 cm2 . Der Balancepunkt darf maximal in der Brücke des Schlägerherzens liegen, besser weiter zum Griffende, so dass der Schläger bestens ausbalanciert ist. Der Balancepunkt kann bei der Kurzversion jedoch auch geringfügig innerhalb der Schlagfläche liegen, so dass die Kurzversion dank der Leichtbauweise besser ausbalanciert ist als bekannte Kurzversionen.The short version is suitable for children, for example for 5- to 7-year-old beginners. It weighs a maximum of 160 g, rather only 170 to 140 g, and has a striking area of at least 600 cm 2 . The balance point may lie at the most in the bridge of the racket heart, better further to the end of the grip, so that the racket is well balanced. In the short version, however, the balance point can also lie slightly within the face, so that the short version is better balanced than known short versions thanks to the lightweight design.
Die Juniorversion ist z.B. rund 63,8 cm lang und besonders für etwa 6- bis 7-jährige Fortgeschrittene geeignet. Dank des optimal hinter der Brücke platzierten Schwerpunkts oder Balancepunkts entsteht beim Spielen das Gefühl, das Gewicht wäre fast nur die Hälfte des Gewichts eines für diese Alters- und Spielstärkengruppe bekannten Junior-Tennisschlägers. Dieses geringe Gewicht, die deutlich größere Schlagfläche z.B. in etwa entsprechend der Schlagfläche eines Erwachsenen-Oversize- Tennisschlägers, und die großen Saitenabstände zumindest im Sweetspotbereich lässt Kinder dieser Kindergruppe rasch nicht nur rasch gut spielen, sondern auch bereits druckvoll aufschlagen. Der Balancepunkt könnte auch geringfügig innerhalb der Rahmenfläche liegen. Die Saitenabstände im Sweetspotbereich könnten auch geringer als 18 mm sein. Die Leichtbauweise (mit Fasermaterial oder Leichtmetall) führt überraschend zum subjektiven Eindruck eines extrem leichten und besonders gut handhabbaren Schlägers, z.B. im Vergleich mit einem bisher üblichen Kinderschläger jeweils der gleichen Kategorie.The junior version, for example, is around 63.8 cm long and is particularly suitable for advanced students aged between 6 and 7 years. Thanks to the center of gravity or balance point optimally placed behind the bridge, the feeling when playing is that the weight is almost only half the weight of a junior tennis racket known for this age and skill level group. This low weight, the significantly larger playing surface, for example, roughly corresponds to the playing surface of an adult oversize tennis racket, and the large string spacing, at least in the sweet spot area, means that children in this group of children not only quickly play well, but also hit hard. The balance point could also be slightly within the frame area. The string spacing in the sweet spot area could also be less than 18 mm. The lightweight design (with fiber material or light metal) surprisingly leads to the subjective impression of an extremely light and particularly easy-to-handle racket, for example in comparison with a previously common children's racket in the same category.
Die Leichtbauweise des neuen Kinder-Tennisschlägers bedingt eine Abkehr von der bisher üblichen Bauweise von Kinder-Tennisschlägern. Der Rahmen wird entweder unter Verwendung ausschließlich hochfester Fasermaterialien wie Kohlenstoff- oder Aramidfasem, gegebenenfalls in eigens dafür konzipierten Formen gefertigt. Glasfasern und gegebenenfalls Füllmaterial, wie z.B. bei Erwachsenen-Schlägern bewusst mitverwendet, um genügend Steifigkeit und Masse speziell im Schlägerkopf zu erhalten, werden vollständig weggelassen.The lightweight design of the new children's tennis racket means that the conventional construction of children's tennis rackets has been abandoned. The frame is either made using only high-strength fiber materials such as carbon or aramid fibers, possibly in specially designed forms. Glass fibers and optionally filler material, e.g. Consciously used in adult rackets in order to maintain sufficient stiffness and mass, especially in the racket head, are completely omitted.
Alternativ kann der Rahmen in Leichtbauweise auch aus einem Leichtmetall-Hohlprofil gebildet werden, vorzugsweise mit Rahmenabmessungen, die nur die Hälfte bis ein Drittel der Rahmenabmessungen von Erwachsenen-Leichtmetall-Tennisschlägern betragen. Mit der Leichtbauweise werden Gewicht reduziert und die Position des Balancepunkts optimiert.Alternatively, the lightweight frame can also be formed from a light metal hollow profile, preferably with frame dimensions that are only half to a third of the frame dimensions of adult light metal tennis rackets. The lightweight construction reduces weight and optimizes the position of the balance point.
Ein weiteres wichtiges Merkmal ist ein Griff mit einer Mindestgrifflänge entsprechend zwei Kinderhänden, einerseits, um den Kindern das zweihändige Spielen lehren zu können, andererseits, um den oftmals instinktiv gewählten Zweihand-Griff problemlos zu ermöglichen. Dabei ist es wichtig, dass sich der Griff zumindest in der Stummelversion möglichst nahe zur Schlagfläche erstreckt, weil Kinder anfänglich die Tendenz haben, möglichst kurz zu greifen. Die Griffstärke sollte kleiner sein als die kleinste Erwachsenen-Griffstärke, und sollte speziell im Umfang auf die Kinderhand abgestimmt sein.Another important feature is a handle with a minimum handle length corresponding to two children's hands, on the one hand, to be able to teach children to play with two hands, on the other hand, to enable the often instinctively chosen two-hand grip without any problems. It is important that the grip extends as close as possible to the face, at least in the stub version, because children initially tend to grip as shortly as possible. The grip strength should be smaller than the smallest adult grip strength, and should be specially tailored to the children's hand.
Die Lernfortschritte sind besonders erfolgreich, wenn beim Lernsystem die versetzbaren Quermarkierungen, die extrem leichten und ausbalancierten Kinder- Tennisschläger und kindgerechte Bälle verwendet werden, d.h. größere Schaumstoffbälle oder größere oder leichtere oder weichere Kinder-Tennisbälle. Erfolgreich soll bedeuten, dass die Kinder nicht nur schneller über die Anfangsschwelle hinwegge- bracht werden, sondern dass mehr auf Tennis neugierige Kinder später dem Tennis treu bleiben als bisher, d.h., dass weitaus weniger Neulinge aus Frust oder Scham oder wegen Unzufriedenheit der Eltern Tennis bald wieder aufgeben.The learning progress is particularly successful if the learning system uses the movable cross markings, the extremely light and balanced children's tennis rackets and balls suitable for children, ie larger foam balls or larger or lighter or softer children's tennis balls. Successful should mean that the children not only get over the initial threshold faster but that more children who are curious about tennis will remain loyal to tennis later than before, which means that far fewer newcomers due to frustration or shame or because of parents' discontent will soon give up tennis again.
Das Tennislernsystem für Kinder, umfassend auf einem Standard-Spielfeld im Abstand vom Netz versetzbare Quermarkierungen, Kinder-Tennisschläger, und kindgerechte, gegenüber Standard-Tennisbällen weichere Tennisbälle ist besonders effektiv, wenn wahlweise nach Körpergröße und/oder Spielstärke den Kindern zugeordnete Stummelversionen, Kurzversionen und Juniorversionen an Kinder-Tennisschlägern mit einem Gewicht einschließlich Bespannung von höchstens 180 g kombiniert mit unterschiedlich weichen Tennisbällen vorgesehen werden. Die jeweilige Kombination des nach Körpergröße und/oder Spielstärke gewählten Kinder-Tennisschlägers in Leichtbauweise mit dem zu diesem Kinder-Tennisschläger passendem Tennisball vermittelt das größte Spielvergnügen für die Kinder. Dabei kann durchaus ein kleiner Spieler mit der Stummelversion und mit auf seiner Spielfeldseite in geringerem Abstand vom Netz platzierter Quermarkierung gegen einen größeren Spieler spielen, der die Juniorversion benutzt und auf dessen Spielfeldseite die Quermarkierung in größerem Abstand vom Netz platziert ist. Auf diese Weise lassen sich, im Hinblick auf einen guten Lernerfolg und intensive Erfolgserlebnisse für beide Spieler Größen- oder Spielstärkenunterschiede kompensieren, ähnlich wie mit dem bei Golf üblichen Handicap.The tennis learning system for children, which includes cross markings that can be offset from the network on a standard playing field, children's tennis rackets, and child-friendly tennis balls that are softer than standard tennis balls is particularly effective if stub versions, short versions and, depending on the body size and / or playing strength, are assigned to the children Junior versions of children's tennis rackets with a weight including stringing of a maximum of 180 g combined with differently soft tennis balls can be provided. The respective combination of the children's tennis racket, selected according to body size and / or skill level, in a lightweight design with the tennis ball that matches this children's tennis racket conveys the greatest fun for the children. A small player with the stub version and with the cross mark placed on his side of the field at a smaller distance from the net can play against a larger player who uses the junior version and on his side of the field the cross mark is placed at a greater distance from the net. In this way, with a view to good learning success and intensive success experiences for both players, differences in size or strength of play can be compensated, similarly to the handicap that is common in golf.
Für die Kinder ist es besonders attraktiv, wenn sie im Konzept des Tennisiernsystems Spielstärken-Codiermittel für Kinder verwenden dürfen, gegebenenfalls korrespondierend mit Spiel-Stärkencodierungen der Kinder-Tennisschläger und gegebenenfalls sogar der Tennisbälle. Dies erhöht den Anreiz für die Kinder erheblich, weil die Spieler selbst und Zuschauer die Spielklasse anhand der Codiemittel sehen können, und die Spieler in eine höhere Klasse aufsteigen wollen und einen Aufstieg durch die Codiermittel untereinander und Dritten zeigen können. Diese durch die Codiermittel der Kinder ausgedrückten Rangstufen (beispielsweise in Schweißbändern, T-Shirts, Kappen oder Stirnbändern) schaffen eine dem Lernerfolg förderliche Wettbewerbssituation. Ausführungsformen des Eriϊndungsgegenstandes werden anhand der Zeichnung erläutert. Es zeigen:It is particularly attractive for the children if they are allowed to use game strength coding means for children in the concept of the tennis system, possibly corresponding to the game strength codes of the children's tennis rackets and possibly even the tennis balls. This increases the incentive for the children considerably, because the players themselves and spectators can see the game class by means of the code means, and the players want to advance to a higher class and can show an ascent through the code means among themselves and third parties. These ranks expressed by the coding means of the children (for example in sweatbands, T-shirts, caps or headbands) create a competitive situation that promotes learning success. Embodiments of the subject matter of the invention are explained with reference to the drawing. Show it:
Fig. 1 einen Kinder-Tennisschläger in einer Stummelversion,1 is a children's tennis racket in a stub version,
Fig. 2 einen Kinder-Tennisschläger in einer Kurzversion,2 shows a children's tennis racket in a short version,
Fig. 3 einen Kinder-Tennisschläger in einer Juniorversion, undFig. 3 shows a children's tennis racket in a junior version, and
Fig. 4 Grundkomponenten eines Kinder-Tennislernsystems.Fig. 4 basic components of a children's tennis learning system.
Die in den Fig. 1 bis 3 gezeigten Versionen von Kinder-Tennisschlägern umfassen eine Stummelversion K1 (Fig. 1), eine Kurzversion K2 (Fig. 2), und eine Juniorversion K3 (Fig. 3).The versions of children's tennis rackets shown in FIGS. 1 to 3 include a stub version K1 (FIG. 1), a short version K2 (FIG. 2), and a junior version K3 (FIG. 3).
Die Stummelversion K1 in Fig. 1 ist bespannt höchstens 140 g schwer oder sogar noch weniger, und weist einen Rahmen 1 und einen direkt am Rahmen 1 angesetzten Griff 2 mit einer Grifflänge I mindestens entsprechend zweier Kinder-Handbreiten auf. Die Griffstärke G ist kindgerecht und an die Kinderhand angepasst, d.h., in jedem Fall kleiner als die kleinste Griffstärke von marktüblichen Erwachsenen-Tennisschlägern. Der Rahmen 1 hat eine Rahmeninnenfläche F1, die zwischen etwa 630 cm2 bis zu etwa 720 cm2 groß ist. Der Rahmen 1 bildet ein Saitenbett 3 für die Bespannung, wobei das Saitenbett 3 so ausgebildet ist, dass zumindest im gestrichelt angedeuteten, extrem großen Sweetspotbereich P die Saitenabstände x und y zwischen den Quer- und den Längssaiten 4, 5 mindestens 18 mm groß sind. Die Saitenabstände könnten bei der Stummelversion K1 sogar zwischen etwa 20 mm und etwa 30 mm betragen. Die Stummelversion K1 ist besonders geeignet für 3- bis 5-jährige Anfänger. Der Balancepunkt S in der Schlägerlängsachse (um den der liegend über eine Rolle mit dem Schlägerkopf voran geschobene Schläger kippt) liegt höchstens 1 ,0 cm in der Rahmeninnenfläche (Mass Z), oder näher beim Griff 2. In der Stummelversion K1 könnten die Saitenabstände im Sweetspotbereich auch kleiner gewählt werden als 18 mm. Das Gewicht der bespannten Stummelversion könnte etwa sogar 150 g betragen, wobei die Stummelversion zweckmäßig eine Länge von etwa 55 cm haben kann. Die Kurzversion K2 in Fig. 2 ist etwas länger als die Stummelversion von Fig. 1, wobei der Rahmen 1 mit dem Griff 2 über ein übliches Schlägerherz mit einer Brücke B verbunden sein kann. Die Grifflänge I entspricht wiederum mindestens zwei Kinderhandbreiten. Auch die Griffstärke ist kindgerecht gewählt. Das Gewicht, einschließlich Bespannung, liegt bei höchstens 160 g. Die Rahmeninnenfläche ist größer als z.B. die Rahmeninnenfläche eines Erwachsenen-Oversize-Tennisschlägers und beträgt z.B. 650 cm2. Die Saitenabstände zumindest im Sweetspotbereich sind mindestens 18 mm, und können bis etwa 24 mm betragen. Die Kurzversion K2 in Fig. 2 ist besonders gut geeignet für 5- bis 7-jährige Anfänger. Der Balancepunkt S liegt höchstens in der Brücke B oder besser dahinter (Bereich Z'). Die Saitenabstände im Sweetspotbereich könnten auch geringer als 18 mm sein. Der Balancepunkt S kann gegebenenfalls etwas innerhalb der Rahmenfläche F2 liegen. Die Kurzversion K2 kann eine Länge von beispielsweise etwa 59 cm haben.The stub version K1 in FIG. 1 is covered with a weight of at most 140 g or even less, and has a frame 1 and a handle 2 attached directly to the frame 1 with a handle length I corresponding to at least two children's hand widths. The grip strength G is suitable for children and adapted to the child's hand, ie, in any case smaller than the smallest grip strength of commercially available adult tennis rackets. The frame 1 has an inner frame area F1 which is between approximately 630 cm 2 and approximately 720 cm 2 in size. The frame 1 forms a string bed 3 for the stringing, the string bed 3 being designed such that the string spacings x and y between the transverse and longitudinal strings 4, 5 are at least 18 mm in size, at least in the extremely large sweet spot area P indicated by the dashed line. The string spacing in the stub version K1 could even be between about 20 mm and about 30 mm. The stub version K1 is particularly suitable for 3 to 5 year old beginners. The balance point S in the longitudinal axis of the racket (about which the racket tilts over a roller with the racket head forward) lies at most 1, 0 cm in the inner surface of the frame (dimension Z), or closer to the handle 2. In the stub version K1, the string spacings in the Sweet spot area can also be chosen smaller than 18 mm. The weight of the covered stub version could even be about 150 g, the stub version expediently having a length of about 55 cm. The short version K2 in Fig. 2 is slightly longer than the stub version of Fig. 1, wherein the frame 1 can be connected to the handle 2 via a conventional racket heart with a bridge B. The handle length I corresponds to at least two children's hand widths. The grip strength is also chosen to be child-friendly. The weight, including covering, is a maximum of 160 g. The inner frame area is larger than, for example, the inner frame area of an adult oversize tennis racket and is, for example, 650 cm 2 . The string spacings at least in the sweet spot area are at least 18 mm, and can be up to about 24 mm. The short version K2 in Fig. 2 is particularly well suited for 5 to 7 year old beginners. The balance point S lies at most in the bridge B or better behind (area Z '). The string spacing in the sweet spot area could also be less than 18 mm. The balance point S can optionally lie somewhat within the frame area F2. The short version K2 can have a length of about 59 cm, for example.
Die Juniorversion K3 in Fig. 3 hat eine Schlägerlänge L von z.B. 63,8 cm. Das Gewicht, einschließlich Bespannung, beträgt höchstens 180 g oder sogar weniger. Die Rahmeninnenfläche entspricht z.B. der Rahmeninnenfläche eines Erwachsenen- Oversize-Tennisschlägers, d.h., ist ungefähr 650 cm2 groß. Die Saitenabstände zumindest im Sweetspotbereich sind mindestens 18 mm und können sogar bei etwa 22 mm liegen. Die Juniorversion K3 ist besonders geeignet für etwa 6- bis 7-jährige fortgeschrittene Kinder. Der Balancepunkt S liegt im Herz, d.h. innerhalb eines Bereichs Z", der an der Brücke B endet. Die Saitenabstände im Sweetspotbereich könne auch kleiner als 18 mm sein. Der Balancepunkt S kann auch in etwa in der Brücke B liegen.The junior version K3 in FIG. 3 has a racket length L of, for example, 63.8 cm. The weight, including covering, is at most 180 g or even less. The inner frame area corresponds, for example, to the inner frame area of an adult oversize tennis racket, ie it is approximately 650 cm 2 in size. The string spacings, at least in the sweet spot area, are at least 18 mm and can even be around 22 mm. The junior version K3 is particularly suitable for around 6 to 7 year old advanced children. The balance point S lies in the heart, ie within an area Z "which ends at the bridge B. The string spacing in the sweet spot area can also be less than 18 mm. The balance point S can also be approximately in the bridge B.
In jeder Version der Fig. 1 bis 3 ist der Rahmen 1 eine Leichtbaukonstruktion. Eine mögliche Ausführungsvariante ist ein Rahmen 1 ausschließlich unter Verwendung hochfesten Fasermaterials wie Kohlenstoff- oder Aramidfasem, die in einer Kunststoffmatrix stabilisiert sind, und unter Weglassung von Glasfasern und/oder Füllmaterial gegenüber Erwachsenen-Schlägern ähnlicher Bauweise, wobei gegebenenfalls andere Produktionsformen benutzt werden als für Erwachsenen-Tennisschläger. Alternativ ist eine Leichtbauweise aus Leichtmetall denkbar, d.h. ein Leichtmetall- Hohlprofil, das gerade so stabil ausgebildet ist, dass es die Eingliederung des Saiten- betts gestattet. Vorzugsweise betragen die Rahmenabmessungen der Leichtmetallversion nur die Hälfte bis rund ein Drittel der Rahmenabmessungen eines Erwachsenen-Leichtmetall-Tennisschlägers. Gemeint sind hier die Tiefenabmessung des Rahmens 1 senkrecht zur Schlagfläche und die Querabmessung in Richtung der Schlagfläche.In each version of FIGS. 1 to 3, the frame 1 is a lightweight construction. A possible embodiment variant is a frame 1 exclusively using high-strength fiber material such as carbon or aramid fibers, which are stabilized in a plastic matrix, and with the omission of glass fibers and / or filler material in relation to adult rackets of a similar design, with other forms of production possibly being used than for adults -Tennisschläger. Alternatively, a lightweight design made of light metal is conceivable, ie a light metal hollow profile that is just so stable that it integrates the string permitted. The frame dimensions of the light metal version are preferably only half to about a third of the frame dimensions of an adult light metal tennis racket. What is meant here is the depth dimension of the frame 1 perpendicular to the striking surface and the transverse dimension in the direction of the striking surface.
Die bei jeder Version extrem vergrößerte Rahmeninnenfläche führt zusammen mit der optimierten Balance, und den großen Saitenabständen zu einem ausgeprägten Trampolineffekt und einem extrem großen Sweetspot, d.h. zu hoher Beschleunigung des Balles und guter Ballkontrolle auch bei unsauber getroffenen Bällen. Die Saitenabstände könne hierbei auch ähnlich wie bei Erwachsenen-Schlägern gewählt werden oder nur geringfügig größer.The frame area, which is extremely enlarged with each version, together with the optimized balance and the large string spacings, leads to a pronounced trampoline effect and an extremely large sweet spot, i.e. too high acceleration of the ball and good ball control even when balls are hit uncleanly. The string spacing can also be selected similarly to that of adult rackets or only slightly larger.
Die Stummelversion K1 in Fig. 1 ist besonders gut geeignet zum Spielen mit gegenüber herkömmlichen Tennisbällen größeren Schaumstoffbällen. Die Kurzversion K2 in Fig. 2 ist besonders geeignet zum Spielen mit speziellen Kinderspielbällen, d.h. Schaumstoff- oder Beginner-Bällen. Die Juniorversion K3 in Fig. 3 ist geeignet zum Spielen mit herkömmlichen Tennisbällen, aber vordringlich auch zum Spielen mit Kinderbällen wie Schaumstoffbällen oder leichteren oder weicheren bzw. größeren Kinderbällen.The stub version K1 in Fig. 1 is particularly well suited for playing with foam balls larger than conventional tennis balls. The short version K2 in Fig. 2 is particularly suitable for playing with special children's play balls, i.e. Foam or beginner balls. The junior version K3 in Fig. 3 is suitable for playing with conventional tennis balls, but also primarily for playing with children's balls such as foam balls or lighter or softer or larger children's balls.
Fig. 4 zeigt die Komponenten eines Kinder-Tennislernsystems JL, mit dem unter Verwendung der Versionen K1 , K2, K3 der Fig. 1 bis 3 besonders gute Lernerfolge erzielbar sind. Das Kinder-Lernsystem wird auf einem Standard-Spielfeld mit Grundlinien 7, einem Netz 8, T-Linien 9, Einzelseitenlinien 10 und gegebenenfalls Doppel- Seitenlinien 11 gespielt, wobei im Abstand vom Netz versetzbare Quermarkierungen M benutzt werden, um die jeweils benutzte Grundlinie allmählich von der T-Linie 9 in Richtung zur und schließlich bis an die Grundlinie 7 in Richtung des Doppelpfeiles 12 zu versetzen. Gespielt wird entweder mit größeren Schaumstoffbällen BS oder mit kindgerechten leichteren und/oder weicheren und/oder größeren Kindertennisbällen BT. Die Kinder werden allmählich vom Spiel zunächst nur in den Aufschlagfeldern zum Spiel in tieferen Feldern und schließlich über die volle Spielfeldtiefe gebracht. Das Spiel kann wettkampfmäßig betrieben werden, wobei die Quermarkierungen M jeweils der Altersgruppe bzw. Spielstärke entsprechend gesetzt und standardisiert auch passende Ballsorten benutzt werden. Für das Kinder-Lernsystem JL ist folgendes Konzept zweckmäßig:FIG. 4 shows the components of a children's tennis learning system JL with which particularly good learning successes can be achieved using the versions K1, K2, K3 of FIGS. 1 to 3. The children's learning system is played on a standard playing field with baselines 7, a net 8, T-lines 9, single side lines 10 and, if necessary, double side lines 11, with cross marks M that can be moved at a distance from the network being used gradually to the respective baseline used to move from the T line 9 in the direction of and finally up to the base line 7 in the direction of the double arrow 12. The game is played either with larger foam balls BS or with child-friendly lighter and / or softer and / or larger children's tennis balls BT. The children are gradually brought from the game initially only in the service fields to the game in deeper fields and finally across the full depth of the field. The game can be operated in a competitive manner, the cross marks M set according to the age group or skill level and standardized suitable ball types are used. The following concept is appropriate for the children's learning system JL:
Die drei unterschiedlich langen Versionen der Kinder-Tennisschläger sind z.B. optisch unterschiedlich codiert, wie gegebenenfalls auch die weichen, kindgerechten Tennisbälle BT, die leichter und/oder kleiner als Standard-Tennisbälle sein können. Für die Stummelversion K1 werden z.B. Tennisbälle BT mit dem schwächsten Sprungverhalten verwendet. Die unterschiedlichen Versionen K1 , K2, K3 werden den Kindern gegebenenfalls abhängig von ihrer Spielstärke.zugeteilt.The three different versions of the children's tennis rackets are e.g. differently coded optically, as well as the soft, child-friendly BT tennis balls, which can be lighter and / or smaller than standard tennis balls. For the stub version K1 e.g. Tennis balls BT with the weakest jumping behavior used. The different versions K1, K2, K3 may be assigned to the children depending on their skill level.
Das Tennislernsystem JL kann auch Spielstärken-Codiermittel für die Kinder umfassen, z.B. T-Shirts, Schweißbänder, Kappen, Stirnbänder oder dergleichen, die sich die Kinder zur Benutzung sozusagen erarbeiten müssen. Diese Codiermittel könnten mit den Codierungen der Tennisschläger-Versionen und/oder der Tennisbälle BT korrespondieren und werden, z.B., am Körper getragen. The tennis learning system JL can also include skill level coding means for the children, e.g. T-shirts, sweatbands, caps, headbands or the like, which the children have to work out so to speak. These coding means could correspond to the coding of the tennis racket versions and / or the tennis balls BT and are, for example, worn on the body.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003262518A AU2003262518A1 (en) | 2002-10-11 | 2003-09-19 | Children's tennis racket and system enabling children to learn how to play tennis |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20215655 | 2002-10-11 | ||
| DE20215655.9 | 2002-10-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004035151A1 true WO2004035151A1 (en) | 2004-04-29 |
Family
ID=29796709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2003/010479 Ceased WO2004035151A1 (en) | 2002-10-11 | 2003-09-19 | Children's tennis racket and system enabling children to learn how to play tennis |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2003262518A1 (en) |
| DE (1) | DE20314501U1 (en) |
| WO (1) | WO2004035151A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107115639A (en) * | 2017-06-02 | 2017-09-01 | 邬惠林 | Children are with long dabber racket |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2030998A1 (en) * | 1970-06-23 | 1971-12-30 | Kranz, Vladimir, DipL-Ing., 8000 München | Tennis racket |
| FR2555062A1 (en) * | 1983-11-18 | 1985-05-24 | Fabrice Pellegrinuzzi | Combinations of ball games such as tennis, squash, pelota, and their racquets |
| WO1987006484A1 (en) * | 1986-04-23 | 1987-11-05 | Davidson Grahame J | A tennis-like game |
| FR2768349A1 (en) * | 1997-09-12 | 1999-03-19 | Major Sports | Mini tennis racket |
| DE29922294U1 (en) | 1999-12-20 | 2000-03-02 | Schaffelhuber, Stefan, 80639 München | Field boundary |
| US6106417A (en) * | 1995-08-22 | 2000-08-22 | Head Sport Aktiengesellschaft | Lightweight tennis racket having high frequency |
-
2003
- 2003-09-18 DE DE20314501U patent/DE20314501U1/en not_active Expired - Lifetime
- 2003-09-19 AU AU2003262518A patent/AU2003262518A1/en not_active Abandoned
- 2003-09-19 WO PCT/EP2003/010479 patent/WO2004035151A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2030998A1 (en) * | 1970-06-23 | 1971-12-30 | Kranz, Vladimir, DipL-Ing., 8000 München | Tennis racket |
| FR2555062A1 (en) * | 1983-11-18 | 1985-05-24 | Fabrice Pellegrinuzzi | Combinations of ball games such as tennis, squash, pelota, and their racquets |
| WO1987006484A1 (en) * | 1986-04-23 | 1987-11-05 | Davidson Grahame J | A tennis-like game |
| US6106417A (en) * | 1995-08-22 | 2000-08-22 | Head Sport Aktiengesellschaft | Lightweight tennis racket having high frequency |
| FR2768349A1 (en) * | 1997-09-12 | 1999-03-19 | Major Sports | Mini tennis racket |
| DE29922294U1 (en) | 1999-12-20 | 2000-03-02 | Schaffelhuber, Stefan, 80639 München | Field boundary |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003262518A1 (en) | 2004-05-04 |
| DE20314501U1 (en) | 2003-12-18 |
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