KR101766533B1

KR101766533B1 - Apparatus for training tennis with in/out judgment part by sensing vibration

Info

Publication number: KR101766533B1
Application number: KR1020150124319A
Authority: KR
Inventors: 허필우; 이성휘; 김현세
Original assignee: 한국기계연구원
Priority date: 2015-09-02
Filing date: 2015-09-02
Publication date: 2017-08-09
Also published as: KR20170027930A

Abstract

The present invention relates to a tennis practice apparatus having an in / out decision unit through vibration detection, and a tennis practice apparatus having an in / out decision unit through vibration detection according to the present invention includes a frame unit; A court body having a predetermined angle inclination and coupled to the frame portion, the court body receiving a ball hit by the user; A throwing unit disposed at a predetermined distance from the coat body, for sending a ball collided on the upper face to a user side; A guiding part for guiding a hole received from the court body to the throwing-out part; And an in / out judging unit for judging the in / out state by sensing the vibration of the throwing unit and transmitting the judgment result to the user. Thus, the tennis practice having the in / out judging unit through the vibration detection capable of repeating the tennis practice by allowing the hit ball to return to the user, and calculating and displaying the score and practicing similar to the actual tennis game Device is provided.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tennis practice apparatus having an in /

The present invention relates to a tennis practice apparatus having an in / out judging unit based on vibration detection. More particularly, the present invention relates to a tennis practice apparatus capable of repeating tennis practice by causing a hitting ball to be returned to a user, The present invention relates to a tennis practice apparatus having an in / out judging unit through vibration detection capable of practicing similar to a tennis match.

In order to practice tennis, a separate tennis practice room with a tennis court in a large space is required. In order to practice on the tennis court, it is necessary to provide a time Is becoming a factor that tennis is not widely spread to the general public because many restrictions are followed.

On the other hand, in order to practice tennis, it is necessary to have a partner who can take the hit ball, so that it is inconvenient to practice alone. To alleviate this inconvenience, a tennis swing practitioner has been proposed in which a user swings with a tennis racket and functions to return a hit tennis ball to the user.

However, in the case of such a tennis swing exerciser, the practice tends to be tedious because the swing of the tennis ball is simply repeated by swinging the tennis racket, and there is a problem that practice is different from the actual tennis game.

Patent No. 10-0860881

Therefore, it is an object of the present invention to solve such a conventional problem, and it is an object of the present invention to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a tennis game in which a hitting ball is returned to a user so that tennis practice can be repeated, And an in / out judging unit through vibration detection that can be performed by the tennis player.

The above object is achieved according to the present invention by a frame structure comprising: a frame part; A court body having a predetermined angle inclination and coupled to the frame portion, the court body receiving a ball hit by the user; A throwing unit disposed at a predetermined distance from the coat body, for sending a ball collided on the upper face to a user side; A guiding part for guiding a hole received from the court body to the throwing-out part; And an in / out judging unit for judging the in / out state by sensing the vibration of the throw-in unit and transmitting the judgment result to the user. The tennis practice apparatus according to claim 1, .

The in / out judging unit includes: a vibration measuring member for measuring a magnitude of vibration of the mouthpiece; a control unit for comparing the measured vibration measured from the vibration measuring member with a reference vibration to make an in / out judgment; And a determination display unit for transmitting an in / out determination result of the control unit to a user.

Here, it is preferable that the control unit makes a determination that there is a measurement vibration larger than the reference vibration within a predetermined period, and makes an out determination when there is no measurement vibration larger than the reference vibration within a predetermined period.

Here, it is preferable that the determination display section displays the in / out determination result on a screen.

Preferably, the coat body includes a pair of coat frames spaced apart from each other and adjustable in length, and a coat sheet coupled between the pair of coat frames and receiving the balls toward the guide unit .

Preferably, the coat body further includes a side sheet for preventing separation of the gap between the coat frame and the coat sheet.

Here, the guide unit may include: a turning unit that changes the direction of the hole received from the coat sheet; And a discharge port for discharging the ball whose direction has been changed by the turning portion to the throwing-out portion.

Preferably, the guide portion includes a plurality of discharge ports, and further includes a guide plate for guiding the balls to the discharge port corresponding to the direction of the holes received from the coat sheet.

Preferably, the delivering portion includes a connection frame detachably coupled to the frame portion, and a throwing plate rotatably coupled to the connection frame and having an upper surface made of a resilient material.

Here, the frame part may include a main frame installed on a floor surface, and a support frame protruding upward from the main frame and being adjustable in length.

Here, the coat frame is preferably rotatably coupled to the support frame.

According to the present invention, there is provided a tennis practice apparatus including an in / out judging unit for detecting a vibration of the hitting ball so as to return to the user and repeat tennis practice in a small space outside and inside.

In addition, it is possible to calculate the score by detecting the vibration size of the throw-in part which sends the hit ball to the user, and to display the calculated score on the screen, so that the in / out judgment A tennis practice device is provided having a part.

In addition, the magnitude of the vibration of the mouthpiece is determined by measuring whether there is a measurement vibration larger than the reference vibration within a predetermined period, and score calculation is performed to obtain an environment similar to a case where an actual user rally.

1 is a schematic perspective view of a tennis practice apparatus having an in / out judging unit through vibration detection according to an embodiment of the present invention,
FIG. 2 is a front view of a tennis practice apparatus having an in / out judging unit through vibration detection of FIG. 1,
FIG. 3 is an exploded perspective view of a guide part of a tennis practice device having an in / out judging part through vibration detection in FIG. 1,
FIG. 4 is a view schematically showing the movement path of the ball in the guide part of the tennis practice apparatus having the in / out judging unit through the vibration detection of FIG. 1,
FIG. 5 is a perspective view of a mouth part of a tennis practice apparatus having an in / out judging unit through vibration detection in FIG. 1,
FIG. 6 is an exploded perspective view of a mouth part of a tennis practice apparatus provided with an in / out judgment unit through vibration detection of FIG. 1,
FIG. 7 is a view schematically showing an in / out judging unit of a tennis practice apparatus having an in / out judging unit through vibration detection in FIG. 1,
FIG. 8 is a view showing a movement path of a ball of a tennis practice apparatus having an in / out determination unit through vibration detection of FIG. 1;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a tennis practice apparatus including a vibration detection in / out determination unit according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic perspective view of a tennis practice apparatus having an in / out judging unit based on vibration detection according to an embodiment of the present invention. FIG. 2 is a schematic view of a tennis practice apparatus having an in / Fig.

Referring to FIGS. 1 and 2, a tennis practice apparatus 100 having an in / out determination unit for detecting vibration according to an embodiment of the present invention includes a frame unit 110, A guide body 130 installed on the coat body 120 and a mouthpiece 140 and an inlet / outlet judgment part 150 disposed between the coat body 120 and the user .

The frame part 110 includes a main frame 111 and a support frame 112 for supporting the coat body 120.

The main frame 111 is installed on a floor or a bottom surface of a building, and a support frame 112 is installed to support the coat body 120. The main frame 111 may be provided with a wheel (not shown) and a fixing member (not shown) so that the main frame 111 can be easily moved and fixed. A wheel (not shown) and a fixing member (not shown) may be installed at each end of the main frame 111. When a wheel (not shown) and a fixing member (not shown) The main frame 111 is fixed on the ground and the area of the main frame 111 on which the fixing member (not shown) is installed can be separated from the ground and can be easily moved through a wheel (not shown).

The support frames 112 are provided in a pair and protrude upward from the main frame 111, and the coat body 120 is coupled. The support frame 112 is adjustable in length so that the height or inclination of the coat body 120 can be changed. For example, the support frame 112 may be structured such that rods having different diameters are drawn in and out, and may be configured to be fixed by tightening with a press bolt.

The coat body 120 includes a coat frame 121 and a coat sheet 122 and a side sheet 123. The coat frame 121 includes a coat sheet 122 and a side sheet 123,

The coat frame 121 is provided in a pair as a structure in which the coat sheet 122 is engaged, and is installed in the support frame 112, respectively. The coat frame 121 is adjustable in length, and the bars having different diameters, such as the support frame 112, are configured to be drawn in and pulled out, and can be configured to be fixed by tightening with a press bolt.

In addition, the coat frame 121 is rotatably coupled to the support frame 112. For example, the support frame 112 and the coat frame 121 may be hinged together. The inclination of the coat sheet 122 is changed by the rotation of the coat frame 121. [

The coat sheet 122 is installed between the pair of coat frames 121 as a position where the user strikes the ball. At this time, the coat sheet 122 may be installed on the coat frame 121 by forming hooks or rings on the four corners.

It is preferable that the coat sheet 122 is provided in the form of a net and that a plurality of the coat sheets 122 are arranged to be overlapped with each other. The elasticity is increased by the provision of a plurality of folds, and the elasticity can be transmitted to the hole struck by the coat sheet 122.

The side sheet 123 is provided between the coat frame 121 and the coat sheet 123 to prevent the hole struck by the coat sheet 122 from being separated between the coat frame 121 and the coat sheet 122 . However, the side sheet 123 is not necessarily provided, and it is possible to arrange the coat frame 121 and the coat sheet 122 without a space between them.

3 is an exploded perspective view of a guide part of a tennis practice device having an in / out judging part through vibration detection in Fig. 3, the guiding unit 130 includes a turning part 131, a discharge port 132, and a guide plate 133. The guiding part 130 guides the ball received from the coat body 120 to the throwing part 140, .

The turning part 131 is configured to change the direction of the hole received from the coat sheet 122 and to send it to the discharge port 132 side. The turning part 131 connects the pair of coat frames 121, and a part of the coat sheet 122 is fixed. The turning part 131 is formed in a curved shape to convert the direction of the hole.

The discharge port 132 is provided at a lower portion of the turning portion 131 and discharges the balls whose direction is changed in the turning portion 131 toward the delivery portion 140. The discharge port 132 is provided in a pair, .

FIG. 4 is a view schematically showing a movement path of a ball in a guide part of a tennis practice apparatus having an in / out judgment part through vibration detection of FIG. 1;

The guide plate 133 guides the path of the ball whose direction has been changed by the turning unit 131 and is disposed inside the turning unit 131 and adjacent to the discharge port 132. In this embodiment, the guide plate 133 is provided in a triangular shape. 4, due to the shape of the guide plate 133, the ball struck to the left of the coat sheet 122 is turned by the turning unit 131 and then collides with the left hypotenuse of the guide plate 133, The ball struck to the right of the coat sheet 122 is guided to the right discharge port 132 side after being turned by the turning part 131 and then collided with the right side hypotenuse of the guide plate 133.

FIG. 5 is a perspective view of a mouthpiece of a tennis practice apparatus having an in / out judging unit based on the vibration detection of FIG. 1, and FIG. 6 is an exploded perspective view of a tennis practice apparatus of FIG. It is a perspective view.

The dispensing part 140 is arranged between the coat body 120 and the user and sends the ball discharged from the discharge port 132 back to the user. 5 and 6, the delivery unit 140 includes a connection frame 141 and a delivery plate 142.

The connection frame 141 is connected to the support frame 112 and is rotatable so that the position of the throw plate 142 can be changed. The throw plate 142 is provided so that its upper surface is resilient, so that the ball ejected from the eject port 132 collides with the upper surface and is moved to the user side. The throw plate 142 is also rotatably coupled to the connecting frame 141 so as to be adjustable in inclination so that the ball can be accurately guided to the user.

FIG. 7 is a view schematically showing an in / out judging unit of a tennis practice apparatus having an in / out judging unit through vibration detection of FIG. 1. FIG.

The in / out determining unit 150 is configured to sense the vibration of the throwing unit 140, make an in / out determination, and transmit the determination result to a user so that the user can practice similar to an actual tennis game. In the present embodiment, it is explained that the determination result is displayed on the screen. 7, the in / out judgment unit 150 includes a vibration measuring member 151, a control unit 152 and a judgment display unit 153. [

The vibration measuring member 151 is a structure for measuring the magnitude of vibration of the mouthpiece 140. The vibration measuring member 151 is installed in the receiving unit 140 and continuously measures the vibration applied to the receiving unit 140. The measured vibration size is transmitted to the controller 152. [

The control unit 152 is configured to make an in / out judgment from the vibration magnitude of the throwing unit 140. [

In fact, when playing a tennis game, the ball hit by the player may become out, such as being caught in a net or leaving the line, and may be rallied by being bound in the line. At this time, if the rally continues, a certain amount of time (hereinafter referred to as a rally time) is required until the ball hit by the player returns from the opponent player.

In the present invention, when the user hits the ball on the court body 120, it takes time until the ball is returned to the user again, which corresponds to the rally time. Here, when the ball is struck to the court body 120, the time taken for the struck ball to return to the user is a certain period.

The control unit 152 determines whether there is a measurement vibration of the reference vibration or more within a predetermined period in the throwing unit 140 and makes an in / out judgment. The measurement vibration refers to the vibration generated in the delivery unit 140 when the ball is hit on the delivery unit 140. The vibration measuring member 151 continuously measures the vibration of the throwing unit 140 and transmits the magnitude of the measured vibration to the control unit 152. The control unit 152 determines whether or not there is a measurement vibration of the reference vibration or more within a predetermined period And makes an in / out judgment.

When there is a measurement vibration of a reference vibration or more within a predetermined period, the ball is judged to be collided with the throwing part 140 from the court sheet 122 through the guide part 130, If there is no measurement vibration as described above, it is determined that the ball does not collide with the throwing unit 140, and thus the ball is judged to be out.

The judgment display unit 153 is configured to display the judgment result of the in / out of the control unit 152 on the display. However, it is not necessarily displayed on the screen, and it can be implemented by various methods such as sound notification.

Hereinafter, the operation of the tennis practice apparatus having the in / out determination unit through vibration detection according to an embodiment of the present invention will be described.

FIG. 8 is a view showing a movement path of a ball of a tennis practice apparatus having an in / out determination unit through vibration detection of FIG. 1;

First, the in / out determining unit 150 is driven, and the vibration measuring member 151 continuously measures the vibration of the delivering unit 140 and transmits the magnitude of the measured vibration to the control unit 152.

When the user strikes the ball toward the court body 120 and the ball is struck by the coat sheet 122, the coat sheet 122 transmits elasticity to the ball and the ball moves toward the guide portion 130 side.

The ball is changed in direction through the turning part 131 and moves toward the discharge port 132 side. At this time, when the ball is struck in the left area of the coat sheet 122, the hole is guided to the left discharge port 132 side by the left hypotenuse of the guide plate 133. When the hole is struck to the right area of the coat sheet 122, And is guided to the left discharge port 132 side by the right hypotenuse of the discharge port 133.

The ball guided by the guide plate 133 by the movement path is discharged to the delivery unit 140 side through the discharge port 132. When the ball is hit on the throwing part 140, the ball is transmitted to the user side by the elasticity of the upper surface of the throwing part 140.

On the other hand, the control unit 152 judges whether the measured vibration is equal to or greater than the reference vibration after the ball collides with the upper surface of the delivery unit 140.

However, if the user does not strike the coat sheet 122 such that the ball hits the outside of the coat body 120 or is struck by the side sheet 123, the ball is not returned to the user through the delivery unit 140 In this case, since the measurement vibration of the reference vibration or more is not measured in the throwing unit 140 within a predetermined period, it is judged that the measurement is out. Out determination result is displayed on the determination display unit 153. [

Therefore, according to the present invention, a tennis practice apparatus having a score display function capable of repeating tennis practice by causing a hit ball to return to a user, and capable of calculating and displaying scores and practicing similar to an actual tennis game Is provided.

The scope of the present invention is not limited to the above-described embodiments, but may be embodied in various forms of embodiments within the scope of the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

100: Tennis practice device with score display function
110: frame part 120: coat body
130: guide unit 140:
150: In / out judgment unit

Claims

A frame part;
A court body having a predetermined angle inclination and coupled to the frame portion, the court body receiving a ball hit by the user;
A throwing unit disposed at a predetermined distance from the coat body, for sending a ball collided on the upper face to a user side;
A guiding part for guiding a hole received from the court body to the throwing-out part;
An in / out judging unit which includes a vibration measuring member provided in the throwing unit and measures a vibration applied to the throwing unit, detects an oscillation of the throwing unit to make an in / out judgment, and transmits a judgment result to a user Including,
Wherein the in / out determining unit makes a determination that the vibration is sensed within a predetermined period in the throwing unit, and makes an out determination if the vibration is not detected within a predetermined period. Tennis practice devices.

The method according to claim 1,
Wherein the in /
A vibration measuring member for measuring a magnitude of vibration of the mouthpiece; a control unit for comparing the measured vibration measured from the vibration measuring member with a reference vibration to make an in / out judgment; And a determination display unit for transmitting an in / out determination result of the control unit to a user.

3. The method of claim 2,
Wherein,
Wherein the determination is made when the measured vibration is larger than the reference vibration within a predetermined period and the out determination is made when there is no measured vibration greater than the reference vibration within a predetermined period Tennis practice equipment.

The method of claim 3,
Wherein the determination display unit displays an in-out determination result on a screen.

5. The method according to any one of claims 1 to 4,
Wherein the coat body comprises:
A pair of coat frames spaced apart from each other and adjustable in length and a coat sheet coupled between the pair of coat frames and receiving the balls to the guide portion side, Out judging unit.

6. The method of claim 5,
Wherein the coat body comprises:
Further comprising a side sheet for preventing separation of the ball from the court frame and between the court frame and the court sheet.

6. The method of claim 5,
The guide portion
A turning part changing a direction of the hole received from the coat sheet; And a discharge port for discharging the ball whose direction has been changed by the turning unit to the throw-in unit side.

8. The method of claim 7,
The guide portion
The plurality of discharge ports are provided,
Further comprising a guide plate for guiding the ball to the discharge port corresponding to the direction of the hole received from the court sheet.

9. The method of claim 8,
[0034]
A connection frame rotatably coupled to the connection frame and having an upper surface made of a resilient material; and a control unit for controlling the rotation of the in / A tennis practice apparatus comprising a judging unit.

10. The method of claim 9,
The frame unit includes:
A tennis practice apparatus comprising a main frame mounted on a floor and a support frame protruding upward from the main frame and being adjustable in length.

11. The method of claim 10,
Wherein the court frame is rotatably coupled to the support frame. &Lt; RTI ID = 0.0 > 8. < / RTI >