KR950010324Y1 - Training device for table ball game - Google Patents

Abstract

No content.

Description

Table tennis exerciser

1 is a perspective view of the present invention.

2 is a perspective view of the table tennis ball recovery device of the present invention.

3 is a perspective view of the batter batted state.

4 is a state of use of the present invention.

5 is a tilt angle adjustment state of the table tennis bats.

6 is an operating state of the striking rod.

7 is a cross-sectional view of the valve cap for ball supply.

* Explanation of symbols for main parts of the drawings

1: expectation 2: ball supply container

2 ': drop ball 3: ball barrel

3 ': rebound plate 4: ball collecting container

5,5 ': Ball supply pipe 6: Livestock pipe part

7: valve cap 7 ': switch

8: inclined hopper 9: supply container

10: axis of rotation 10 ': motor

11: spring rope 12: batting rod

12 ': mandrel 13: bat

14: shaft 15,16: motor

17: ball collection tube 18: trumpet tube

19: supply pipe 19 ': inlet

20: ball supply cylinder 20 ': spring

21: ball rise 22: eccentric cam

23: crank 24: piston for ball supply

25: flow interval 26: sliding roller

27: string 28: mesh

29: motor

The present invention mainly relates to an automatic ping pong ball throwing device designed to allow people who are new to ping pong to throw balls regularly and practice batting repeatedly while learning the swing. When supplying from the supply container, the ball is thrown to the table tennis target on the exerciser's side by the automatic batting device at regular intervals, and the pitch of the batting point can be adjusted as needed. By changing the position to the left and right alternately, you can learn various table tennis skills through the practice process. As a table tennis exerciser, a generalized automatic throwing device has been widely used, but its configuration allows a continuously supplied table tennis ball to pass between a pair of high speed rotating rubber feed rollers, and the throwing distance and direction of the ball is determined by the propulsion force of the feed rollers. This is only a simple function of sending the ball to a certain position on the ping pong table of the exerciser, so that the exerciser is only useful for the technical polishing of swing practice. There was a disadvantage in that he could not learn and practice the skill of batting eloquence in response to change in balance. The present inventors have focused on the conventional problems, and as a result of a long-term study, it is possible to throw relatively various changes such as pitch, pitch, and throwing direction of the ball, thereby increasing the efficiency of the table tennis exerciser and the ball hit by the exerciser separately. It can be automatically recovered and resupply without consuming manpower, so that it can be widely used as an unmanned exercise machine without operating the ostrich or coach system during the practice process. .

Figure 1 shows the overall configuration of the present invention, the base (1) of the table tennis exercise machine is composed of a rectangular cylindrical body vertically placed, the ball supply cylinder (2) is arranged on the upper side and the ball ball cylinder (below) 3) is disposed, and at the bottom end, a ball recovery container 4 is installed, and the ball lift pipe 21 which is discharged from the recovery container 4 is connected to the inclined hopper 8 side of the ball supply container 2.

On one side of the inclined hopper 8, a ball supply hole 9 is opened, and a rotary shaft 10 in which several soft spring ropes 11 are installed on the supply hole 9 is laid down by a motor 10 '. The ball rolling in the inclined tube (8) is supplied to the supply hole (9) without being stagnant so that it is rotated to the lower side of the supply hole (9) and a pair of ball supply pipe (5) that is axially stored in the snow storage pipe (6) Install the ball inclined but install the valve cap 7 driven by the solenoid switch 7 'at the lower end of the ball supply pipe 5 so that the supply and blocking of the ball can be controlled. Allow for periodic supply.

The lower barrel 3 is a space part, that is, a barrel formed between the barrel 3 and the ball supply cylinder 2, with a built-in power control device including a motor 16 for rotating the batter bat in the cylinder. (3), the batting rod 12 is attached to the end of the batting rod 13 is installed on the shaft (14) arranged on the motor 16 as an axis point, the batting rod 12 is a core rod inside The inclination of the bat 13 is adjusted by incorporating 12 'so as to be rotated by the linear motor 15 mounted on the consistent portion of the striking rod 12.

The lower ball collection tube 4 is arranged with a fallopian tube 18 connected to the mesh body 28 capable of recovering the ball on the upper side, and the fallopian tube 18 is inserted into the ball collection tube 17 in a flow state. The recovery pipe 17 is again connected to the ball supply cylinder 20 connected to the ball lift pipe 21 through the supply pipe 19.

The inside of the ball collection container 4 has a built-in motor 29 in which the eccentric cam 22 is condensed, as shown in FIG. 2, and a ball supply piston on the upper side of the eccentric cam 22 by the crank 23. 24 is installed in the cylinder 20 upward and the coil spring 20 'is inserted in parallel in the upper portion of the inlet portion 19' of the supply pipe 19 to prevent the ball supplied from the lower side from descending downward. It is configured to act as a check valve.

And when one side of the eccentric cam 22 is interposed between the flow 25, the intermittently swinging the sliding roller 26 of the axially connected to the other side of the connecting string 27 is connected to the mesh 28 to the exerciser When the ball falls to the mesh 28, the mesh 28 is shaken so that the ball easily rolls into the fallopian tube 18. The operational effect of the present invention of the above configuration will be described.

In the structure of the present invention, the ball supply pipe (5) (5 ') built in the ball supply cylinder (2) is rotated to drop the ball into the drop hole (2') and the valve cap (7) is a solenoid switch (7) ') To allow or stop the ball descending or lower the ball at the time of dropping so that the batting rod 12 is instantaneously rotated by the shaft bar 14 so that the bat 13 strikes the ball toward the table tennis table of the practitioner. Since the proper time setting is performed by the organic electric circuit, these electronic component circuit devices use a general relay automatic control circuit, and thus the circuit configuration and description are omitted. The net body 28 installed on the lower ball collection container 4 is preferably placed wide so that the trainee can fall back on the net body 28 after the drill is bounced off.

The balls recovered to the mesh 28 are introduced one by one through the fallopian tube 18 and are supplied to the supply pipe 19 through the recovery hole 17. The cam cam 22 rotates by the rotation of the motor 29 installed therein. When the flow chamber 25 flows in contact with the sliding roller 26, the connecting string 27 continuously shakes the mesh 28 lightly so that the ball dropped to the fallopian tube 18 by the swing thereof. The more easily introduced and introduced balls are supplied into the cylinder 20 through the supply pipe 19.

Inside the cylinder 20, the piston 24 is built-in so that the ball supplied by the rotation of the eccentric cam 22 and the vertical movement of the crank 23 continues to push upwards, and the lift of the piston 24 once. Each time the ball is pushed up by passing through the holding spring (20 ') one by one, the holding spring (20') serves as a check valve to stop the ball once raised. At this time, if you slightly wrap the raised forage on the main surface of the spring (20 ') it can serve as a cleaning role to remove dirt and dirt on the surface every time the ball rises.

The ball pushed up by the piston 24 is continuously pushed up through the riser 21 and sent to the ball supply container 2, and in the ball supply container 2, the bottom surface is slightly inclined so that the supply hole (9) ) The ball rolls down. At this time, since the wire line 11 made of soft tangier spring is laid on the rotating shaft 10 of the motor 10 'and is gradually rotating on the supply hole 9, the balls collected on the supply hole 9 are not entangled with each other. It is induced to flow smoothly one by one through the supply hole (9).

The ball introduced into the supply hole (9) is supplied to the valve cap (7) through the supply pipes (5) and 5 ', and when the single-phase ball is hit, the ball is either one of the supply pipes (5) and (5'). In the case of a double shot only, the two supply pipes 5 and 5 'are alternately sent one by one.

The valve cap 7 installed at the tip serves to drop or stop the ball flowing into the supply pipes 5 and 5 'by the solenoid switch 7' to the drop hole 2 '.

When the ball descends into the drop hole (2 '), it falls on the rebound plate (3') (which is made of a thin rubber plate) installed on the barrel (3) and then bounces up. 12) This momentary rotational movement at a constant angle hits the rebound ball to the front, that is, the ping pong target of the exerciser.

Since the batting rod 12 hits the ball once and then returns to the original position and continues the continuous repeated motion of hitting again when the next ball falls, the exerciser continuously hits the ball falling back on the table tennis table in front of him and the opposite mesh body 28 The ball thrown on the mesh 28 is introduced into the fallopian tube 18 by the above-described operation, and is re-recovered toward the supply container 2.

Therefore, the practitioner can practice the smashing of the strength and weakness repeatedly while holding the correct batting position of the ball supplied repeatedly from the batting practice position.

Since the throwing speed of the ball is determined by the striking force of the striking rod 12, the rotational speed of the striking rod 12 is adjusted by a switch operation, but the adjustment of the throwing command is performed. In this case, if the motor 15 is rotated by a switch to rotate the shaft 12 'inserted in the striking rod 12, the inclination θ of the bat 13 is adjusted so that Altitude adjustment is also possible. In addition, since two supply cylinders 5 and 5 'are provided in parallel, the ball to be supplied to the supply hole 5 in the front position is delayed, so the thrown ball falls on the right table tennis table of the exerciser and the supply cylinder 5' in the rear position. ) Is a quick hit, so it falls on the left table tennis table.

Therefore, the ball supply direction of the ball can be adjusted from side to side according to the arbitrary selection of the ball supply of the supply cylinders 5 and 5 'as the power control device, and in some cases, the supply cylinders 5 and 5' are alternately selected. When the ball is supplied, the exerciser can practice batting alternately in the left and right positions of the table tennis table, so the right-handed batter can play with a forehand ball and the left-hand batter can be batted with a back-hand ball.

As described above, unlike the conventional throwing roller type throwing device, the ping pong practice apparatus of the present invention is controlled by a rotary batting device while selectively or multiplely supplying and controlling the ball supply to two supply pipes 5, 5 '. The ball can be repositioned to the pitcher's position by adjusting the height of the ball to the left and right, so that the practitioner can master and practice table tennis with a wide variety of techniques. As it can be supplied, it does not require a separate training manpower, so it is a very reasonable exercise platform with efficiency, efficiency and economy.

Claims (1)

In constructing a table tennis exerciser, a ball supply pipe (2) and a ball cylinder and a recovery container (4) are installed in three stages on the expectation, but the ball supply pipe (2) has a valve cap (7) (7 '). (5) (5 ') is installed in pairs so that the ball fed to the ball supply hole (9) can be selectively or collectively supplied, and the bat (13) is placed at the tip of the lower part of the ball supply container (2). The batting rod 12 is pivotally rotated by the motor 16, but inside the striking rod 12, the snow stick 12 'is fixed to the angle adjusting motor 15 so that the inclination of the bat 13 is reduced. The piston 20 driven by the eccentric cam 22 of the motor 29 and the holding spring 20 'with the built-in cylinder 20 at the lower side of the striking rod 3 can be adjusted. Table tennis exerciser, characterized in that configured to be able to supply the ball into the supply pipe (2) through the riser (21).