KR20140101972A - String racket - Google Patents

Abstract

The present invention relates to a racket having a string part for tennis, badminton, squash, etc. and, more particularly, to a racket having strings that outputs a signal to enable a player to exactly swing a racket when at least one swing from among underhand forehand swing, underhand backhand swing, forehand overhead swing, and backhand overhead swing is exactly performed. The racket having strings includes a swing signal part that is switched to output a signal when the racket swung by a player reaches a preset maximum acceleration; thus, when an exact swing is performed and a maximum acceleration is thereby reached, the racket having strings outputs a swing signal to enable a player to have an advantage in playing a game. Further, the racket having strings enables a novice at racket sports to acquire exact swing in a short time.

Description

STRING RACKET {STRING RACKET}

The present invention relates to a racket having a string portion such as a tennis, badminton, or squash, and more particularly, to a racket having a string portion such as a tennis, badminton, or squash, and more particularly to a racket having a string portion such as a forehand under swing, a backhand under swing, a forehand over swing, The present invention relates to a string racket that allows an athlete to perform a racquet swing accurately.

Racquet movements with strings of tennis, badminton, or squash can be played on a rectangular court with a net, or on a court with three sides of a wall, using racquets and shuttlecocks or balls to play two players or two teams. It is a kind.

In the case of the badminton, both players or both teams rally while hitting the shuttlecock with their coats using the racket. And the tennis player uses a tennis racket to perform a rally while passing a tennis ball through the opponent's court. The squash will then use the squash racquet to strike the squash ball against the wall and then let the opponent catch the ball.

The racquet for such a movement is provided with a string portion in which a string is wound in a lattice shape to strike a shuttlecock, a tennis ball or a squash ball, and a string portion which supports the string portion and increases the circular motion radius of the string portion, A shaft made of a rigid material such as aluminum or a carbon fiber material extending from the string portion so as to increase the length of the shaft, and a handle portion attached to the end of the shaft so as to easily grip the racket.

The shuttlecock for badminton during the above exercises is made in the form of a feathered cone in a leather cork. Examples of the prior art for the badminton movement using the badminton racket and the shuttlec include the badminton racket of Korean Patent Publication No. 97-6234 (hereinafter referred to as prior art 1) and the badminton racket of training of Korean Patent Laid-open Publication No. 1998-21199 Hereinafter, the prior art 2) can be mentioned.

Prior art 1 is constructed so that a badminton racket is formed so as to have a balance point or a center point closer to the head end (string portion) side of the badminton racket than the end portion of the handle portion, and the inertia moment of the string portion is increased to perform strong impact.

The above-described prior art 2 aims at providing a badminton racket for enhancing the accuracy of hit of a shuttlecock. By practicing a correct batting by forming a narrow batting region by winding a string only in a certain central region passing through the centerline of the string portion .

The badminton movement having the above-described characteristics has a completely different flight path from that used in other racquet sports, because the shuttlecock has a feather in its cork and has special aerodynamic properties. The shuttlecock is much faster than the other racquet sports balls, but it is also sharper than the regular ball because of its higher air resistance.

A badminton with this characteristic sends the shuttlecock to the other side by transmitting the power (energy) generated during the rotation of the badminton racket to the rotation of the arm and the snare of the snare. In other words, when the arm is rotated around the wrist and the wrist snap is used to draw the correct circle, the most powerful force is generated in the racket, and the greatest force is transmitted to the shuttlecock when hitting the shuttlecock in the region of maximum acceleration The shuttlecock can be moved quickly.

Therefore, it is necessary to perform an accurate and quick swing in order to strike the shuttlecock strong and accurate. In this case, the term " accurate swing " means that the swing is performed so as to have the maximum acceleration at the impact point of the shuttlecock.

Although not described in detail, even in the case of tennis or squash, in the case of swinging the racket such as badminton, the tennis ball or the squash ball can be struck most strongly and correctly when the string part is hit in the maximum acceleration section of the circle motion.

That is, in the case of a racket-based motion, an accurate swing motion is required.

However, in the above-described prior arts 1 and 2, it is possible to increase the stiffness of the badminton racket so as to increase the striking force, or to exercise the exerciser so as to swing at an accurate striking point by using a narrow string area, The exerciser does not have a function of recognizing that the shuttlecock is hit in the swing area having the maximum acceleration. Accordingly, in the case of the prior arts 1 and 2, it takes a lot of time to learn the accurate swing motion because a lot of time training is required to learn the accurate swing motion of the badminton racket.

This is a problem that arises in the case of a string racket such as a tennis racket or a squash racket.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a swing- And to provide a string racket capable of performing or practicing an accurate swing motion.

In order to accomplish the above object, the present invention provides a string racket comprising: a swing signal part for switching when a player performs a swing and outputting a signal when the player has a predetermined maximum acceleration.

The swing signal unit may include a switch unit mounted in the string racket to switch the string racket in a predetermined maximum acceleration movement interval and a signal output unit to output a signal by switching the switch unit .

The switch unit includes a slide case mounted in a string, a shaft, or a handle, a first terminal unit and a second terminal unit slidably mounted on both sides of the slide case, and a second terminal unit disposed between the first terminal unit and the second terminal unit. And an elastic part for separating the first terminal part from the second terminal part when the first terminal part and the second terminal part come into contact with each other due to inertia and below a predetermined acceleration, And outputs a signal by supplying power to the signal output unit when the first terminal unit and the second terminal unit are in contact with each other.

The slide case may include a first conductive portion and a second conductive portion that are respectively attached to at least one inner surface of the first terminal portion and the second terminal portion, And an insulating part electrically insulating the first conductive part and the second conductive part, wherein the first conductive part and the second conductive part are electrically connected to the signal output part by electric wires.

The elastic portion measures the swinging motion of the string racket of the exerciser so that the player can select and mount the elastic racket so that the first terminal portion and the second terminal portion contact each other at the maximum acceleration of the maximum acceleration region during the string racket swing operation So as to be detachable.

The string racket may further include a power source unit that is switched when the first terminal unit and the second terminal unit are in contact with each other to supply power to the signal output unit.

Alternatively, the string racket may include a first terminal portion and a second terminal portion, each of which is formed of a magnet, one end of which is in contact with the first conductive portion and the second conductive portion, and the other end of which is in contact with the first terminal and the second terminal And a first coil and a second coil wound around the first terminal portion and the second terminal portion to be respectively connected to the first terminal portion and the second terminal portion to generate electromotive force by reciprocating motion of the first terminal portion and the second terminal portion in the coil, May be configured to provide power for the signal output section.

The string racket of the present invention having the above-described configuration provides an effect that a player can perform a correct swing even during a game by outputting a signal when the player performs an accurate swing operation, thereby leading to a game advantageously.

In addition, the string racket of the present invention provides the effect of allowing the user to learn an accurate swing motion in a short time in the case of a stranger racket beginner.

1 is a view showing the entire configuration of a badminton racket 100 as an embodiment of a stringing racket of the present invention,
2 is a view showing a detailed configuration of a switch unit 210A mounted inside the badminton racket 100,
3 is a diagram showing a configuration of a signal output section 230A connected to the switch section 210A by a wire 201 and outputting a signal,
4 is a view showing a switch portion 210B of another embodiment which is switched to generate an induced electromotive force,
5 is a diagram showing a configuration of a signal output unit 230B of another embodiment that receives power by the switch unit 210B of FIG. 4 and outputs a signal.
FIG. 6 is a view illustrating a forehand over swing process during a swing operation using a badminton racket having the configurations of FIGS. 1 to 5. FIG.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings showing a badminton racket 100 as an embodiment of the string racket of the present invention.

FIG. 1 is a view showing the entire configuration of a badminton racket 100 as an embodiment of a stringing racket according to the present invention. FIG. 2 is a view showing a detailed configuration of a switch unit 210A mounted inside the badminton racket 100 3 is a diagram showing a configuration of a signal output section 230A connected to the switch section 210A by an electric wire 201 and configured to output a signal.

1 to 3, the badminton racket 100 includes a string portion 110 in which a string 113 is wound in a lattice shape, a shaft 120 extending from the string portion 110, And a handle 130 mounted on a distal end of the racket 120. The switching signal unit 200 outputs a signal when the swing operation of the badminton racket 100 is performed.

1, the switching signal unit 200 includes a switch unit 210A mounted inside a terminal located on the string 110 side of the shaft 120, a switch unit 210A connected to the switch unit 210A and the wire 201, And a signal output unit 230A mounted inside the handle 130 to output an accurate swing signal. In FIG. 1, the switch unit 210A and the signal output unit 230A can be located at any position on the center line of the center of gravity of the badminton racket 100.

2, the switch unit 210A includes a slide case 211 mounted in an inner space of the shaft 120, a first terminal unit (not shown) mounted slidably in the slide case 211, 213A and a second terminal portion 214A and an elastic portion 215 mounted between the first terminal portion 213A and the second terminal portion 214A.

More specifically, the first conductive part 211a and the second conductive part 211b are separately attached to the one side surface of the slide case 211 by the insulating part 211c.

The first terminal portion 213A and the second terminal portion 214A are formed of conductors to which the first terminal 213a and the second terminal 214a are attached on the surfaces facing each other, Is slidably mounted in a state that one side is attached to the first conductive part 211a and the second terminal part 214A is slidably mounted in a state that one side is attached to the second conductive part 211b Respectively. The first terminal portion 213A and the second terminal portion 214A are spaced apart from each other between the first terminal portion 213A and the second terminal portion 214A and the badminton racket 100 is rotated The first terminal 213A and the second terminal 214A are adjacent to each other by inertia and acceleration so that the first terminal 213a and the second terminal 214a are brought into contact with each other, do. In this case, the elastic part 215 is detachable. The swing acceleration of the exerciser is measured according to the exerciser, and the first terminal 213a and the second terminal 214a are attached to the first terminal 213a and the second terminal 214a at the maximum swing acceleration, 213A and the second terminal portion 214A are slidably movably supported.

3 and 4, the first conductive portion 211a and the second conductive portion 211b are electrically connected to the signal output portion 230A by electric wires disposed in the shaft 120, respectively, do.

3, when the first terminal 213a and the second terminal 214a are in contact with each other, the signal output unit 230A is short-circuited to supply power to the power supply unit 231A and the power supply unit 231A And a speaker 234 for receiving a power from the speaker 234 and outputting a sound signal. In this case, the speaker 234 may be variously modified as a light emitting unit that emits light.

When the player performs the swing, the first terminal 213a and the second terminal 214a are energized by being in contact with each other in the maximum acceleration period, so that the power of the power source 231A is applied to the signal board And the signal is outputted through the speaker 234.

As another embodiment of the present invention, a badminton racket having a switching signal unit operating using an induced electromotive force will be described in addition to the above-described configuration.

FIG. 4 is a diagram illustrating a switch unit 210B of another embodiment that generates an induced electromotive force. FIG. 5 is a circuit diagram of a signal output unit of another embodiment that receives power from the switch unit 210B of FIG. (230B).

The badminton rackets of FIGS. 4 and 5 have the same configuration as the badminton rackets of FIGS. 1 to 3 except for the configuration of the switch unit 230B and the signal output unit 230B. The switch unit 230B and the signal output unit 230B of another embodiment will be described with reference to FIG.

4, the switch unit 210B includes a slide case 211 having a first conductive portion 211a and a second conductive portion 211b formed on an inner surface thereof by an insulating portion 211c The slide case 211 is connected to the first conductive portion 211a at one end and connected to the first terminal 213a formed at the first terminal portion 214a at the other end thereof, The first coil 220a is connected to the second terminal 2113b of the second terminal portion 214a and the other end of the first coil 220a is connected to the second conductive portion 211b. And a second coil 220b wound on the outside of the first coil 214a. At this time, when the first terminal 213a and the second terminal 2113b are in contact with each other, the first coil 220a and the second coil 220b are wound so that current flows in the same direction. When the first coil 220a and the second coil 220b are referred to collectively, they are collectively referred to as a coil 220. [

A first terminal portion 214a having a magnetic property and having a first terminal 213a formed on a surface facing the second terminal portion 214a is slidably mounted in the first coil 220a. A second terminal portion 214a having a magnetic property and having a second terminal 214a formed on a surface facing the first terminal portion 214a is slidably mounted in the second coil 220b.

The maximum swing acceleration of the exerciser is measured between the first terminal portion 214a and the second terminal portion 214a so that the first terminal 213a and the second terminal 2113b Are attached to each other.

5, the signal output unit 230B of another embodiment of the present invention is directly connected to the signal board 233B that drives the speaker 234 without having a separate power supply unit.

4 and 5, when the player performs the swing, the first terminal portion 213A and the second terminal portion 214a in the first coil 220a and the second coil 220b are connected to each other, The induction electromotive force is generated in the first coil 220a and the second coil 220b while the first terminal 213a and the second terminal 2113b are energized in the swing of the maximum acceleration, 210B are short-circuited and power is supplied to the signal output unit 230B, thereby outputting a signal. Therefore, the badminton racket having the configurations of FIGS. 4 and 5 has the convenience of operating without a power source such as a battery.

FIG. 6 is a view illustrating a forehand over swing process during a swing operation using a badminton racket having the configurations of FIGS. 1 to 5. FIG.

6, when the athlete performs the forehand over swing using the badminton racket 100, the string part 110 performs a circular motion to move the A-B, B-C, and C-D sections. In this case, the maximum acceleration occurs in the section B-C between the point B and the point C, and this section is referred to as the maximum acceleration section.

At this time, when the maximum acceleration measured according to the exerciser occurs in the maximum acceleration section, the accurate swing is performed. In this way, when the accurate swing is performed, the first terminal portions 213A and 213B and the second terminal portions 214A and 214A of FIGS. 1 to 5 are pressed against the elastic portion 215, And the second terminal 214a are in contact with each other. 4 to 5 are supplied to the signal plate sections 233A and 233B and a signal sound is output through the speaker 234, It is possible to recognize whether or not the user has performed an accurate swing motion.

Although the badminton racket has been described as an example of the present invention, the present invention can be applied to all string racquets having string parts such as a tennis racket, a squash racket, and the like, and can be applied to a forehand under swing, a backhand under swing, Can be applied.

100: badminton racket 110: string part
120: shaft portion 130: handle portion
200: switching signal unit 201:
210A, 210B: switch unit 211: slide case
211a: first conductive portion 211b: second conductive portion
211c: Insulating part 213A, 213B: First terminal part
214A, 214a: second terminal portion 213a, 214a: second terminal
220a: first coil 220b: second coil
220: coils 230A and 230B: signal output unit
233A and 233B: a signal board 234: a speaker

Claims (7)

And a swing signal part for outputting a signal when the exerciser performs a swing when the robot has a predetermined maximum acceleration.
The swing control apparatus according to claim 1,
A switch portion that is switched at a predetermined maximum acceleration within a string portion or an end portion of the string side portion of the shaft;
And a signal output unit for outputting a signal by switching of the switching unit.
The apparatus according to claim 2,
A slide case mounted inside the string, the shaft or the handle,
A first terminal portion and a second terminal portion slidably mounted on both sides of the slide case,
When the first terminal portion and the second terminal portion are in contact with each other due to inertia when the acceleration is predetermined between the first terminal portion and the second terminal portion, Including an elastic portion,
And the signal output unit outputs a signal when the first terminal unit and the second terminal unit are in contact with each other.
4. The slide fastener according to claim 3,
A first conductive portion and a second conductive portion which are respectively attached to at least one inner surface of the first terminal portion and the second terminal portion, And
And an insulating portion electrically insulating the first conductive portion and the second conductive portion,
And the first conductive portion and the second conductive portion are electrically connected to the signal output portion by electric wires.
4. The connector according to claim 3,
The swinging motion of the stringer racket of the exerciser is measured so that the swinging motion of the exerciser can be selected so as to have an elastic modulus such that the first terminal portion and the second terminal portion contact each other at the maximum acceleration of the maximum acceleration region during the stringing racket swing operation, And a plurality of string racquets.
The method of claim 3,
Further comprising a power supply unit that is switched when the first terminal unit and the second terminal unit are in contact with each other to supply power to the signal output unit.
The method of claim 3,
Wherein the first terminal portion and the second terminal portion are made of magnets and one end thereof is in contact with the first conductive portion and the second conductive portion respectively and the other end is connected to the first terminal and the second terminal, And a first coil and a second coil that are wound on the outside of each of the first terminal portion and the second terminal portion to generate electromotive force by reciprocating motion of the first terminal portion and the second terminal portion in the coil, To the rack racket.

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