JPH0652862U - Ball training equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] In practice equipment for ball games such as table tennis and tennis for wall-hit practice, the reflective ball must always return to the vicinity of the practitioner.
As a result, a training tool that saves the effort and time spent picking up a ball and enables efficient training is provided. A practice tool 1 having a repulsive surface 2 on one side, wherein the repulsive surface 2 is provided with an elevation angle and a predetermined curved surface is provided in the horizontal direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tool for practicing a ball game having a net in the center of a court, such as table tennis or tennis, and more specifically, for a ball game that is used as a wall strike by arranging the net in the center of the court. It relates to practice equipment.

[0002]

[Prior art]

 Conventionally, as a tool / device for practicing wall-attacking such as tennis alone, hitting a ball toward a plate material that is made to be self-supporting by a supporting member, and hitting the ball that bounces back against the plate material has been hitherto done. There are some tennis practice tools.

Further, as an improved version of the above equipment, there are tennis practice devices described in JP-B-61-39505 and JP-B-62-17100. That is, all of these devices are equipped with a training plate having two planes with different angles with respect to the ground surface, and it is possible to change the angle (elevation angle) between the training plate and the ground surface. is there.

[0004]

[Problems to be solved by the device]

 In the former practice tool among those described in the prior art, the ball that bounces off the plate material (hereinafter referred to as the reflective ball) returns to a position range where the practitioner can continue practicing wall-mounting. It does not always come, and depending on the direction and strength of the ball hitting the plate, the ball is reflected in a direction far away from the practitioner and the practitioner cannot hit it back. Therefore, if you use the former practice tool to perform wall-stretching alone, you will not be able to hit it back and many balls will be scattered around you, and it will take a lot of effort and time to collect them, which is efficient. I can't practice.

Further, in the latter two practice devices described in the related art, the reflective ball that bounces off the ground plate by changing the angle (elevation angle) formed by the practice plate and the ground surface is changed. It is possible to adjust the distance between the first bounce position (rebound point) and the practice plate, but depending on the direction of the ball hitting the practice plate, the ball may be reflected to both outsides in the horizontal direction and Can't beat this back. Therefore, even if one person uses the latter training device to practice wall-hit alone, a large number of balls that cannot be hit back will be generated, and it will take a great deal of labor and time to collect them, which will lead to efficient practice. Can not.

The present invention has been made in view of the above problems of the prior art. The purpose of the present invention is to arrange the net at the center of the court such as table tennis or tennis by one person. It is an object to provide a ball-playing training tool for wall-practice practice, in which the reflective ball always returns to the vicinity of the trainee.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is a practice tool for ball game having a repulsive surface on one side, which is provided with an elevation angle and a predetermined curved surface in the horizontal direction.

[0008]

[Action]

 By providing an elevation angle on the repulsion surface and inclining it to an appropriate angle, the reflecting ball that bounces off the repulsion surface and does not fall on the court surface more quickly than necessary.

Further, by providing a predetermined curved surface in the horizontal direction of the repulsion surface, the reflective sphere always bounces first inside both side lines of the coat.

[0010]

【Example】

 Embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to these embodiments. First, a table tennis practice tool of the embodiments of the present invention will be described below.

1, 2 and 4 show a table tennis practice tool 1 according to an embodiment of the present invention, and FIGS. 3 and 5 show the table tennis practice tool 1 arranged at a net position of a table tennis table 11. It shows the state of being done.

As shown in FIG. 1, a table tennis practice tool 1 is a rigid object molded of colorless transparent plastic having a top surface 4, a bottom surface 5, a repulsive surface 2, a back surface 3, a left side surface 6 and a right side surface 7. Is. This practice tool 1 has a height of 60 cm, a width of 152.5 cm, upper sides of both sides of 23 cm, and lower sides of both sides of 33 cm, and an elevation angle θ (an angle formed between the repulsion surface 2 and the bottom surface 5) is provided on the front repulsion surface 2. A predetermined curved surface is provided in the horizontal direction, and the repulsion surface 2 is curved to the back side. The repulsion surface 2 repels the ping-pong ball.

The elevation angle provided on the repulsion surface 2 is constant and is about 80.5 degrees. This is to tilt the repulsion surface 2 to the back side at an optimum angle so that the ping-pong ball reflected by the repulsion surface 2 does not drop onto the table tennis court surface more quickly than necessary. The range of the elevation angle θ is preferably 50 degrees <θ <90 degrees.

Further, as shown in FIG. 2, the repulsive surface 2 is a curved surface which is an assembly of arcs having a radius of curvature r = 171.25 cm. The reason why the repulsive surface 2 is curved in this way is that the ping-pong ball reflected by the repulsive surface always first bounds inside both side lines of the table tennis court. If the radius of curvature of the repulsion surface 2 is too large, the reflecting sphere may first bounce outside both sides of the coat. Further, if the radius of curvature of the repulsion surface 2 is too small, the reflecting ball may collide with the repulsion surface 2 again without returning to the practitioner.

A slit 9 having a width of 2 cm and a depth of 12.15 cm is formed in parallel with the rear surface 3 from the left side surface 6 to the right side surface 7 at a position 5 cm from the rear surface 3 of the bottom surface 5. The size is such that the net fits snugly in the slit 9 when the practice tool 1 of the embodiment is arranged on a table tennis table. Further, the repulsion surface 2 is formed with a window 8 penetrating from the repulsion surface 2 to the back surface 3, and the interval between the left and right ends of the window 8 is 112. It is 5 cm, and the left and right ends are located 6 to 20 cm from both sides 6, 7. As shown in FIG. 4, the height of the front entrance 8a of the window is about 7 cm, and the height of the back exit 8b is about 5 cm. The inner upper surface 8c and the inner lower surface 8d of the window are inclined at an angle of 11.2 degrees and 7.8 degrees with respect to the horizontal plane as shown in FIG. 5, and the inner lower surface 8d is in contact with the upper end of the slit 9. . Furthermore, a fitting plate for closing the window 8 is prepared, and the window 8 is closed with the fitting plate when a normal window is not used.

A method of using the training tool 1 having such a configuration will be described below.

The practice tool 1 with the window 8 closed by the fitting plate is arranged on the table tennis table 11 so that the net 10 can be completely stored in the slit 9 as shown in FIG. When the table tennis table is not stretched with the net, the practice tool 1 may be arranged by aligning the slit 9 with the position where the net is stretched. The practitioner performs wall-practice exercises toward this practice tool 1.

At this time, the ping-pong ball which hits the repulsion surface 2 and is reflected does not drop onto the coat surface faster than necessary due to the elevation angle and the curvature of the repulsion surface 2 as described above, and must always be first inside the both side lines of the coat. Bounce to. In other words, the reflecting ball on the repulsion surface 2 always returns to the vicinity of the practitioner, which is suitable for wall-practice practice, and saves labor and time without the need to collect a large number of balls as with conventional practice equipment and devices. It can save you money and enables you to practice efficiently. In addition, since it is made of a colorless and transparent material, the practitioner can visually recognize the position of the net 10 and the opponent's coat, and thus can practice the operation of hitting the ball and the exertion of force.

If the practice tool 1 is placed on a table tennis table with the fitting plate removed and the window 8 is opened, it can be used as a game. That is, a player can play a game by hitting a ball while looking at the machine during a game and scoring on the assumption that the opponent fails to return a ball if the ball hits the window 8 safely. Here, regarding the position, size, shape, and inclination angle of the window 8, as shown in the front view of FIG. 3 and the right side view of FIG. It is stipulated that the hit ball should fly on a course that is difficult to hit back. Therefore, the practice tool 1 allows practice to improve the ball control ability.

The table tennis practice tool 1 described above can be used as a practice tool for table tennis clubs in junior high school, high school, and university, and also as an exercise tool for maintaining / promoting physical strength in sports clubs and fitness clubs.

Furthermore, if a light sensor is provided at the rear exit 8b of the window of the practice tool 1 and the score is designed each time a passage of a ball is sensed, it can be used as a game machine in a game hall or the like.

Next, a tennis practice tool according to an embodiment of the present invention will be described below.

6 and 7 show a tennis practice tool 21 according to an embodiment of the present invention. FIG. 6 is a right side view and FIG. 7 is a plan view.

The tennis practice tool 21 has a repulsive surface similarly to the table tennis practice tool 1, and the repulsive surface has upper and lower repulsive surfaces 2 provided with an elevation angle and a predetermined curved surface in the horizontal direction. It consists of 2,32. The height of the practice tool 21 is 2.12 m, and the boundary between the upper and lower repulsion surfaces 22 and 32 is 1.06 m, which is the same height as the tennis net.

The elevation angle provided on each of the repulsion surfaces 22 and 32 is constant over the entire repulsion surface, and the angles are 63 degrees and 26 minutes and 72 degrees and 39 minutes, respectively. This is an optimum angle determined so that most of the balls hitting the repulsion surfaces 22 and 32 are reflected in the vertical direction at an angle and speed at which the ball can be hit again. The elevation angles θ ₁ and θ ₂ of the repulsion surfaces 22 and 32 are preferably in the range of 50 to 80 degrees, and θ ₂ > θ ₁ . Particularly preferable ranges are 55 degrees <θ ₁ <68 degrees and 68 degrees <θ ₂ <75 degrees.

Both the repulsive surfaces 22 and 32 have a radius of curvature r of 13.885 m as shown in FIG. The reason why the repulsive surface is curved in this way is that the ball reflected by the repulsive surfaces 22 and 32 always bounces first inside both side lines of the tennis court. If the radius of curvature of the repulsive surfaces 22, 32 is too large, the reflective sphere may first bounce outside the coat on both sidelines. Further, if the radius of curvature of the repulsion surfaces 22 and 32 is too small, the reflecting ball may not return to the wall-practitioner and may collide with the repulsion surfaces 22 and 32 again.

As a method of using the practice tool 21 having the above-described configuration, five practice tools are arranged in a row in the lateral direction in a net position at the center of the tennis court so that the repulsion surface is a circle. Arrange in an arc shape. At this time, the repulsion surface covers the entire lateral width of the coat by the five practice tools 21, 21 ,. Then, the practitioner performs wall-practice toward these practice tools 21, 21, ..., 21. At that time, since the reaction ball always returns to the vicinity of the practitioner, it is suitable for wall-practice practice, and it can save a great deal of wasted effort and time spent picking up the ball.

[0028]

[Effect of device]

 With this invention, the reflective ball always returns to the vicinity of the practitioner when practicing wall-hit practice such as table tennis or tennis alone, so it is suitable for wall-hit practice, and it takes more labor and time to pick up the ball than before. You can save money and enable efficient practice.

[Brief description of drawings]

FIG. 1 is a perspective view of a table tennis practice tool according to an embodiment of the present invention.

FIG. 2 is a plan view of the table tennis practice tool of FIG.

FIG. 3 is a front view of the table tennis practice tool of FIG. 1 arranged at a net position of a table tennis table.

FIG. 4 is a right side view of the table tennis practice tool of FIG. 1.

5 is a right side view of the table tennis practice tool of FIG. 1 arranged at the net position of the table tennis table. FIG.

FIG. 6 is a right side view of the tennis practice tool according to the embodiment of the present invention.

FIG. 7 is a plan view of the tennis practice tool of FIG.

[Explanation of Codes] 1 ... Table tennis practice tool 2, 22, 32 ... Repulsion surface 3 ... Back surface 4, 24 ... Top surface 5 ... Bottom surface 6 ... Left side surface 7, 27 ... Right side surface 8 ... Window 8a ... Window front entrance 8b ... Rear exit of window 8c ... Inside upper surface of window 8d ... Inside lower surface of window 9 ... Slit 10 ... Net 11 ... Table tennis table 21 ... Tennis practice equipment

Claims (1)

[Scope of utility model registration request] 1. A ball game practice tool having a repulsive surface on one side, wherein the repulsive surface is provided with an elevation angle and a predetermined curved surface is provided in a horizontal direction.