JPH0448207Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of use] This is a self-training device for the table tennis sector in the sports world.

[Conventional technology] In any sport, the common issues are:
In addition to practical training during practice, additional basic training is required.

In the table tennis section, we conduct practical training using official table tennis tables, as well as basic training such as basic movements.
Don't forget the effectiveness of self-training, which is done on your own without using a table tennis table. Examples of self-training methods include firstly swinging a racket, secondly training leg strength and other muscles, and other methods such as wall ping pong.

Roughly classifying the above, training can be divided into two: training at a club, etc. and practicing using a table tennis table, and training at home.

[Problems that the invention aims to solve] At-home training methods include swinging a racket, jogging, and gymnastics, but they do not go as far as wall ping-pong, and the problem is that the space is small.

[Means for solving the problem] The table tennis trainer according to the present invention has a single support fixed and stabilized on a pedestal, and a hanging arm, a bounce board, a mirror, and a simulated table tennis table plate are attached to the support from the top in this order. A ping pong ball is suspended from the tip of the arm using a hanging string with a weight placed in the middle, making it possible to practice alone in a small space. Moreover, you can master various elements with this one device.

[Operation] As shown in Fig. 2, when a table tennis player practicing hits the ping pong ball suspended from the tip of the upper hanging arm of the table tennis trainer according to the present invention, aiming at the direction of the simulated table tennis table plate, Due to the effect of the hanging line and the weight, it hits the bottom of the bounce board and flips over, creating a trajectory in the air similar to a ping pong ball bouncing on a table tennis table, and returns to the player's hand with great force.
By hitting this ball back as the next ball and continuing to repeat it, you can practice swinging, wall ping pong, strength training, etc.

In addition, if a mirror 5 is installed in the middle of the pillar in front of the player practicing, the player can see his own reflection and use it as a reference for improving and correcting his batted ball form.

Next, the trajectory of the batted ball, which can be said to be a revolutionary feature of the present invention, will be explained. FIG. 3 is a diagram showing the principle of movement of the ping-pong ball 8 suspended by the hanging line 7 and the weight 9 attached between the hanging point and the ping-pong ball, centering on the hanging point P.

According to an experiment, the weight 9 and the ping pong ball 8 lowered in a straight line centering on point P are 8', centering on point P.
It is possible to make parallel pendulum movements like 9', 8'', 9'', and if you apply a striking force only to the weight 9 in the middle of the hanging string and make the pendulum move in the directions of 9' and 9'', you can play ping pong. The ball 8 moves up and down as shown in 88.If you hit the ping pong ball 8 with force,
It can also be seen that weight 9 lags behind, is pulled, and moves in an irregular arc. By combining the pendulum motion of the three points mentioned above and the inertia of the weight, it is possible to generate a trajectory unique to the present invention.

FIG. 2 is a side view showing a table tennis player practicing using the table tennis trainer according to the present invention. The ping pong ball 8 at point A is hit toward the simulated table tennis table plate 6, and when it reaches point B, the hanging string 7 becomes tense, and the position of the intermediate weight 9 is closer to b.
Since it is given inertia that is pulled toward b' and sent forcefully toward b'', it provides a force that lifts the ping pong ball 8 at point B, and then it hits point C on the lower surface of the bounce board 4 with force.C When the weight 9 is reflected at the point and goes to the point D, the weight 9 is pulled from c' to d, and the momentum toward d' acts to lift the ping pong ball at the point D, so the weight 9 is pulled from the point D to the point E. Since the trajectory towards , tends to bounce, the hanging line 7 loosens on the way and moves freely, and is tensioned again at point E. The weight 9 at point E is pulled more towards e' than e, and the force moves towards e''. Then, lift the ping pong ball 8 at point E and make a trajectory with a slight bounce toward point A. By repeating hitting the ball at point A, you can practice swinging the racket, adjusting your batting form, and researching your batting technique.

[Example] To explain the present invention with reference to drawings, FIG.
is inserted into the frame 2 and tightened and fixed with the tightening screws 12. Hinge 1
4, and in order from the top, place the bounce board 4, mirror 5, and simulated table tennis table plate 6 in the designated positions with the latch 1.
Attach it at step 3.

A ping pong ball 8 is suspended from the tip of the hanging arm 3 by a hanging string 7, and a weight 9 is attached to the middle of the hanging string 7. The weight 9 can be attached by attaching a single hanging line 7 and attaching the weight 9 in the middle of the hanging line 7, or as shown in Fig. It has a structure in which joint metal fittings 10, twist return 11, etc. are provided to match the weight of the weights, making connection and removal easy, and it can also be replaced.

Furthermore, it is also preferable to attach a net similar to that used on an actual table tennis table instead of the simulated table tennis table plate 6, which should serve as a target for hitting a ball.

Figure 2 is a side view showing a table tennis player practicing, and the ping pong ball 8 hit by the player is
The ball passes through the trajectory indicated by the dotted arrow in the order of A, B, C, D, and E, reaches point A, and is hit again. The theory of this trajectory is as explained in the section of [Effect] above. Due to the structure of this table tennis trainer, the bounce plate 4 is attached downward at the top, which may seem different from the trajectory of actual table tennis, but this is due to the timing when the virtual opponent returns the ball. It is intended to match.

The height of the strut 1 and hanging arm 3 can be adjusted by making them expandable and retractable, and by changing the angle of the hanging arm 3 at the hinge 14, the locus of the ball can be changed, thereby diversifying the content of practice. can be measured.

In addition, various shapes of the frame as shown in FIGS. 5A and 5B can be used.

[Effects of the invention] The table tennis trainer according to the invention does not have to worry about the size or narrowness of the practice area, and can comprehensively train practice swings, the feeling of hitting the ball, the ability to concentrate to see the ball well, and study and master the hitting form. It is considered to be a groundbreaking training tool, as it is thought to be able to satisfy most of the elements required for training from beginners to advanced players.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the assembly of the table tennis trainer of the present invention, and Fig. 2 is a side view showing the table tennis trainer of the present invention being used for practice. is explained. FIG. 3 is an explanatory diagram of the pendulum motion of the ping pong ball 8 and the weight 9, which is the principle of the present invention. FIG. 4 shows an alternative method for the weight, in which a fitting fitting 10, a twist return 11, etc. suitable for the predetermined weight of the weight are combined and attached to simplify the attachment and detachment of the ping pong ball. Fifth
The figure shows the shape of the pedestal. 1 is a column, 2 is a pedestal, 3 is a hanging arm, 4 is a spring board,
5 is a mirror, 6 is a simulated table tennis table plate, 7 is a hanging string, 8
is a ping pong ball, 9 is a weight, 10 is a fitting hardware, 11 is a twist, 12 is a tightening screw, 13 is a latch, 14 is a hinge, P is a suspension point, A, B, C, D, E are a ping pong ball hitting ball The trajectory of a, b, b', b'', c, c', d,
d', e, e', e'' indicate the locus of the weight 9.

Claims (1)

[Scope of utility model registration request] Insert one pillar 1 onto the pedestal 2 to make it fixed and stable, and attach the hanging arm 3, spring plate 4,
A simulated table tennis table plate 6 is attached, and a ping pong ball 8 is suspended from the tip of the hanging arm 3 by a hanging string 7 with a weight 9 arranged in the middle, and on the lower surface of the bounce plate 4 attached downward to the upper part of the support 1. A table tennis trainer that allows you to practice hitting a ball by yourself, even in a small space, by reflecting the ball and making the trajectory of the ball bounce through the action of the ping pong ball, hanging string, and weight.