JPH0549721A - Trainer for table tennis - Google Patents

Abstract

PURPOSE:To enable various types of hit balls at the hit instant to be viewed by applying a prescribed rubber to a member corresponding to a paddle to have a function of hitting the ball in the horizontal direction. CONSTITUTION:A ball tossed from a toss part 3 is received by a reflective plate 4 to convert its direction to the horizontal direction. On the other hand, a fore arm 1 is reciprocated horizontally in time with the ball to reciprocate a paddle part 2 mounted to the fore arm 1. At the same time, swing speed is controlled by changing the rotational radius of a super low speed synchronous motor A and the rotation of the paddle part 2 is controlled by a speed control motor B provided on the paddle part to set and display the function of various types of hit balls. Also, the pitch of the hit ball is controlled by setting a time to a twin timer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table tennis practice machine.

[0002]

2. Description of the Related Art In a conventional training machine of this type, a cylindrical one is used for throwing.

However, in the prior art as described above,
I do not know the sphere quality (even if you can make upper rotation and lower rotation,
(It was an unfamiliar upper rotation or lower rotation.) Moreover, there was a drawback that I did not know when it would come out.

[0004]

The problem to be solved is that there is no equivalent to a racket and there is no function of hitting a ball.

[0005]

DISCLOSURE OF THE INVENTION The present invention is intended to solve the above problems, in which the ball is vertically dropped (tossed) to one point and the toss is horizontally converted by the reflector. By swinging the forearm part with the racket part horizontally back and forth and taking both timings, we realized the function of hitting a ball.

[0006]

[Function] The forearm pushes the ball, and the racket rotates the ball.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view of an embodiment of the training machine of the present invention, and 1-3 are the same as FIG. Reference numeral 4 is a reflector.

The ultra-low speed synchronous motor A that moves the forearm 1 becomes unloaded after one revolution, and the twin timer T
Since it stops instantaneously by 1 (= time required for one rotation),
After the swing start, the front bowl part 1 always stops at the position before the start. The swing speed is controlled by changing the turning radius of the ultra-low speed synchronous motor A.

The speed control motor B controls the amount of rotation of the racket 2. When the angle of the racket portion 2 is adjusted, the position of the hitting point does not move as shown in FIG. Since the subject of the present invention is the mounting method of the hitting function, the description of the electronic device for adjusting the angle and the mechanical system is omitted.

The hitting pitch depends on the time interval between one swing of the forearm 1 and the next swing, and is determined by the time setting of T2 of the twin timer.

The hitting point is moved forward and backward by shifting the timing of the toss, and the ball is hit left and right.

[0012]

EFFECTS OF THE INVENTION There are many types of table tennis, and the quality of the sphere varies depending on the equipment (racket, rubber), but the training machine of the present invention can be used for upper rotation and lower rotation utilizing the characteristics of the equipment. You can throw the ball. Also, back swing, take back, fore swing, impact, follow through,
There is a finish and you can see the moment you hit the ball.

[Brief description of drawings]

FIG. 1 is a side view of a training machine of the present invention.

FIG. 2 is a plan view of the training machine of the present invention.

FIG. 3 is an explanatory view showing an angle (a) of a racket part when a ball of the upper rotary system is thrown out and an angle (b) of a racket part when a ball of the lower rotary system is thrown out.

FIG. 4 is an explanatory diagram of input / output of a twin timer.

FIG. 5 is an explanatory diagram showing a pitch of a ball to be fed according to a change of T2 of a twin timer.

[Explanation of symbols]

1 Forearm 2 Racket 3 Toss 4 Reflector A Ultra-low speed synchronous motor that moves forearm 1 B Speed control motor (Reversible type) C Ultra-low speed synchronous motor for toss C'C gear (reduction ratio 3)

Claims (5)

[Claims] 1. A training machine in which a prescribed rubber is stretched over a ball equivalent to a racket and the ball is hit. 2. The training machine according to claim 1, wherein the rotation of a racket is controlled by a speed control motor. 3. The training machine according to claim 2, wherein the ball is vertically dropped by an ultra-low speed synchronous motor having a gear and the ball is horizontally tossed by a reflector. 4. The training machine according to claim 1, wherein the portion corresponding to the tip of the elbow (forearm portion) is swung so as to engrave an arc with an ultra-low speed synchronous motor. 5. A twin timer and a relay (two circuits) provide two.
Turns on the ultra-low speed synchronous motor of Ke. The training machine according to claim 1, wherein the training machine is turned off to change the pitch.