ES1218743U - DEVICE FOR LEARNING AND PRACTICING THE PRONATION OF THE ARMOR IN THE TENNIS SERVICE (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Device (1) for learning and practicing pronation of the forearm in tennis kick characterized in that it comprises: - a neck or heart (2), - a receptacle (3) formally and dimensionally adapted to fit a tennis ball (4), arranged at a first end (20) of the neck (2) and comprising a ball-positioning opening (4) (4) that it is arranged in a direction substantially perpendicular or crossed to the neck (2), and - a fist (5) disposed at the second end (21) of the neck (2), said fist (5) comprising channels (50) for the fingers that are arranged in a direction substantially perpendicular or crossed to the neck (2) and rotated 90 degrees with respect to the opening (30) in left or right handed pronator direction. (Machine-translation by Google Translate, not legally binding)

Description

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DEVICE TO LEARN AND PRACTICE THE PRONATION OF ANTEBRAZO

IN THE PACK OF TENNIS

D E S C R I P C I Ó N

OBJECT OF THE INVENTION

The present invention relates to a device for learning and practicing pronation of the forearm in the tennis serve.

BACKGROUND OF THE INVENTION

The pronation in the tennis serve is the movement of the forearm that causes the wrist to turn outwards, and as all coaches know well, it is one of the great problems for teaching the service, since this movement involves getting hit flat, cut or lifted to the ball and ultimately perform an effective serve. The handle, that is, the way to grab the racket with your hand to get an effective serve, is the continental handle. This handle allows us to flex the arm / racket behind the back and with the elbow at shoulder height to achieve maximum acceleration, it also allows us that the point of impact with the ball is as high as possible. When the kick is taken, the backward movement of the racket to achieve greater momentum implies placing the racket behind the head, and if the pronation is not performed, the racket attacks the ball at a non-plane angle, which prints a cut effect - and a less powerful serve - if done well, or increase the probability of hitting the ball with the racket frame. Therefore, the outward rotation of the forearm pronation attempts to compensate for this angle to hit the ball as flat as possible.

Currently, the teaching of pronation of the forearm is done orally, visually, kinematically and / or kinesthetically. These three forms depend on what the teacher communicates orally and / or with their movements, and it is known that 75% of the students learn visually and kinesthetically, but this does not guarantee a good assimilation by the student.

To learn and achieve a good mechanics of pronation of the forearm then it is necessary to repeat the serve again and again testing different degrees of pronation, with the

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inconvenient that many times it is not hit with the ball or hit with the racket frame, so that from a number of attempts only a percentage are useful, even lower in the case of beginners, spoiling the motivation for the lack of success and for having to be collecting wasted balls, and with the loss of time that this also means.

Indicate, in addition to this background chapter, that the parts of a racket are: the fist, the head - which includes the string and the frame in which it is fixed - and the neck or heart (also called tree or throat), which it is the section that is joining the head and the fist, and which by analogy has also been called a part of the device of the invention

DESCRIPTION OF THE INVENTION

The device for learning and practicing pronation of the forearm in the tennis serve of the invention has a configuration that solves the problem posed.

According to the invention, the device comprises:

-a neck or heart,

-a formal and dimensionally suitable receptacle for fitting a tennis ball, arranged at a first end of the neck, and comprising an opening for placing the ball that is arranged in a direction substantially perpendicular or crossed to the neck (that is, forming approximately 90 degrees with the direction of the neck, and -a fist arranged at the second end (the opposite end to the first end) of the neck, said fist comprising finger channels that are arranged in a direction substantially perpendicular or crossed to the neck and turned approximately 90 degrees with respect to the opening in the pronator direction (that is, for right-handed channels the channels are turned with respect to the opening 90 degrees to the right, and for left-handed people 90 degrees to the left.

In this way the device achieves a precise orientation of the ball and coincides with that which would be achieved with the full hit with the strings of the racket, while the channels of the fingers inform the student of their position, coinciding with the turn of the forearm and ultimately with pronation, so that if pronation is not performed properly the ball is not thrown by the device to have the opening directed perpendicularly or crossed (at 90 degrees) with respect to the main direction of the neck.

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That is, the use of the device of the invention facilitates the student learning using kinesthetic perception, since he can repeat the gesture over and over again in a fun way and getting satisfactory results quickly which motivates the student to continue practicing.

Therefore, the student visually and immediately checks the direction that is printed on the ball based on the pronation that in turn receives thanks to the direction to which the receptacle points at the moment the ball leaves it, without errors of hitting the ball that would cause the practice of this exercise with a racket, intensifying the self-perception of the pronation-direction set of the ball in a logical deductive way by the student himself, even without the participation of the oral explanation (which allows the teacher to attend to several students at once).

Then, the device of the invention:

-Teach the motor skills of pronation of the forearm.

- It teaches that the direction of the ball we throw depends on where the receptacle that holds the ball is oriented at the moment of throwing, easily extrapolated to the orientation of the strings of the racket at the moment of contact of these and the ball. -He teaches that the fluidity with which he makes the movement, which in turn depends on the relaxation in the grip of the device, is decisive in the speed with which the ball is thrown.

- Obligation, by design, to use a continental grip, which is then easily translatable to the racket grip.

-It facilitates the explanation of how to transmit effects to the ball depending on the orientation of the support that holds the ball at the time of throwing.

-Facilitates the repetition in a fun way, of everything discussed in the previous points with countless exercises that students can do for themselves without intervention of the monitor or with small explanations or questions of the monitor that they themselves will be able to answer due to the logical-deductive simplicity provided by the use of the device.

DESCRIPTION OF THE DRAWINGS

Figure 1.- Shows a device for left-handed pronation, on the left and a device

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for right-handed pronation, on the right, in a perspective view.

Figure 2.- Shows a device for pronation of left-handers, on the left and a device for pronation of right-handers, on the right, in a frontal view with respect to the opening of the ball socket.

Figure 3.- Shows a device for left-handed pronation, on the left and a device for right-handed pronation, on the right, in a frontal view with respect to the finger channels.

PREFERRED EMBODIMENT OF THE INVENTION

The device (1) for learning and practicing pronation of the forearm in the tennis serve comprises:

-a neck (2) or heart,

- a receptacle (3) formally and dimensionally suitable for fitting a tennis ball (4), arranged at a first end (20) of the neck (2) and comprising an opening (30) for placing the ball (4) that it is arranged in a direction substantially perpendicular or crossed to the neck (2), and

- a fist (5) disposed at the second end (21) of the neck (2), said fist (5) comprising channels (50) for the fingers that are arranged in a direction substantially perpendicular or crossed to the neck (2) and turned approximately 90 degrees with respect to the opening (30) in the right-handed or left-handed pronator direction (for right-handed channels (50) are turned with respect to the opening (30) 90 degrees to the right, and for left-handed people 90 degrees to the left).

Very preferably the neck (2) has an arcuate convex shape in the same direction as the channels (50) for the fingers, to arch in the serve movement and increase the impulse as a catapult or crossbow and disengage the ball (4) only when the correct address is printed.

The receptacle (3) comprises a concave shape adapted to the ball, comprising an irregular edge (31) in the form of a ball gripper (33) (4).

As for the fist (5), it ideally comprises a flange (51) (see fig 2) for the passage of a

strap, not shown, or for hanging.

Finally, indicate that the device (1) is preferably made of plastic in a monobloc configuration due to manufacturing economy.

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Describing sufficiently the nature of the invention, it is indicated that the description thereof and its preferred embodiment should be construed in a non-limiting manner, and that it encompasses all of the possible embodiments that are deduced from the content of the present specification. and of the claims.

Claims (6)

5 10 fifteen twenty 25 30 R E I V I N D I C A C I O N E S 1. -Device (1) to learn and practice the pronation of the forearm in the tennis serve characterized by understanding; -a neck or heart (2), - a receptacle (3) formally and dimensionally suitable for fitting a tennis ball (4), arranged at a first end (20) of the neck (2) and comprising an opening (30) for placing the ball (4) that it is arranged in a direction substantially perpendicular or crossed to the neck (2), and - a fist (5) disposed at the second end (21) of the neck (2), said fist (5) comprising channels (50) for the fingers that are arranged in a direction substantially perpendicular or crossed to the neck (2) and turned 90 degrees to the opening (30) in a right-handed or left-handed pronator. 2. Device (1) for learning and practicing pronation of the forearm in the tennis serve according to claim 1 characterized in that the neck (2) has an arcuate convex shape in the same direction as the channels (50) for the fingers. 3. Device (1) for learning and practicing pronation of the forearm in the tennis serve according to any of the preceding claims characterized in that the receptacle (3) comprises concave shape adapted to the ball. 4. Device (1) for learning and practicing pronation of the forearm in the tennis serve according to claim 3 characterized in that the receptacle comprises an irregular edge (31) in the form of a grip (33) for gripping the ball (4). 5. -Device (1) for learning and practicing pronation of the forearm in the tennis serve according to any of the preceding claims characterized in that the fist (5) comprises a flange (51) for the passage of a belt or for hanging. 6. -Device (1) for learning and practicing pronation of the forearm in the tennis serve according to any of the preceding claims characterized in that it is materialized in plastic in monobloc configuration.