JP3408733B2 - Pitcher training machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pitching training machine for determining the strike of a pitched ball and the ball.

[0002]

2. Description of the Related Art A conventional pitching training machine used for pitching practice of a baseball is, for example, as shown in FIG.
There is a system in which the front side of 1 is surrounded by a net 72, the speed of a ball thrown toward the wall 71 is detected by a speed gun 73, and the detected pseudo is displayed on a display 74.

[0003]

However, in the conventional case,
Only the strike zone is drawn on the wall 71,
It is difficult to clearly judge whether the pitched ball is a strike or a ball, and thus it has been impossible to practice pitching effectively in the conventional case. The present invention has been made in view of the above problems, and an object of the present invention is to provide a pitching training machine capable of clearly knowing whether a pitched ball is a strike or a ball.

[0004]

Means for Solving the Problem A first technical means of the present invention for solving this technical problem is provided with pitch position detecting means 31 for detecting the position of a pitched ball. The point is that a determination means 47 is provided for comparing the pitch position detected by the detection means 31 with the preset strike zone position to determine the strike of the pitched ball and the ball. Therefore, the practitioner can clearly know whether the pitching ball is a strike or a ball based on the judgment result of the judgment means 47.

The second technical means is a large number of first light projecting sensors 27 which project parallel light beams at intervals.
A large number of second light projecting sensors 29, which emit parallel light beams at intervals in a direction intersecting the light beam of the first light projecting sensor 27, and a plurality of first light projecting sensors 29, which receive the light of the first light projecting sensor. A light receiving sensor 28 and a plurality of second light receiving sensors 30 that receive the light from the second light emitting sensor 29 are provided, and the positions of the first light receiving sensor 28 and the second light receiving sensor 30 that are shielded by the pitching ball and preset The determination means 47 for determining the strike of the pitched ball and the ball by comparing the position of the strike zone is provided.

Therefore, a large number of first light projecting sensors 27, a large number of first light receiving sensors 28, and a large number of second light projecting sensors 2 are provided.
It is possible to detect the pitching position of the ball by means of 9 and a large number of the second light receiving sensors 30, and to make a clear judgment by the judging means 47 as to whether the pitched ball is a strike or a ball.
The third technical means is that, in the plane orthogonal to the ball's throwing direction, light rays parallel to each other are projected from a large number of first light projecting sensors 27, and in the plane orthogonal to the ball's throwing direction. The plurality of first light projecting sensors 27 and the plurality of second light projecting sensors 29 are arranged so that mutually parallel light beams are projected from the second light projecting sensor 29.

In a fourth technical means, the plurality of first light projecting sensors 27 are provided so as to project parallel light at equal intervals, and the plurality of second light projecting sensors 29 are provided.
The point is that parallel light is projected at equal intervals in a direction orthogonal to the light of the first light projecting sensor 27. Therefore, a large number of first light emitting sensors 27, a large number of first light receiving sensors 28, a large number of second light emitting sensors 29, and a large number of second light emitting sensors 29.
With the light receiving sensor 30, the pitching position of the ball can be detected easily and reliably.

The fifth technical means is provided with a strike number calculating means 48 for calculating the strike number determined by the determining means 47 and a ball number calculating means 49 for calculating the ball number determined by the determining means 47. The number of strikes display section 15 for displaying the number of strikes calculated by the strike number calculation means 48 and the ball number display section 16 for displaying the number of balls calculated by the ball number calculation means 49 are provided. Therefore, the number of strikes and the number of balls among the pitched balls can be easily and accurately made.

A sixth technical means is that the pitching practice is terminated when the number of balls calculated by the ball number calculating means 49 from the start of the pitching reaches a predetermined number. Therefore, the pitching practice can be automatically terminated depending on the number of balls pitched. 7th
The technical means of (3) is that a timer is activated by the start of the pitching, and the pitching practice is ended by the timer when a predetermined time has elapsed from the start of the pitching. Therefore, the pitching practice can be automatically ended when a predetermined time has elapsed from the start of the pitching.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 is a ball determination board. 2 is a mound for youth baseball from which a boy throws a baseball ball toward the ball judgment board 1. Reference numeral 3 denotes a mound for adults, from which an adult throws a baseball toward the ball judgment board 1. Reference numeral 5 is a coin box, which is configured to output a start signal to the control panel 9 to be described later with no voltage by inserting a predetermined coin into the coin box, whereby the pitching practice can be started.

7 is a speed gun, which constantly checks the speed of the ball thrown from the mounds 2 and 3 toward the ball judging board 1 and regards the speed of 50 km or more as the throwing ball, and the speed of the highest speed point thereof. The data is output to the control panel 9 via the conversion unit 8 shown in FIG. Reference numeral 11 is a ball sorting and feeding machine, which sorts the balls delivered from the ball judging board 1 side into hard balls A, hard balls B, and soft balls, and the mound 2, through a gutter-shaped ball passage 10.
It is designed to be sent to the 3 side.

Reference numeral 12 denotes a display panel, as shown in FIG. 3, a maximum speed display portion 13 for variably displaying today's maximum speed (Km / h) and a speed display portion for variably displaying the current speed (Km / h). 14 and a strike count display unit 15 that variably displays the number of strikes of the pitched ball.
And a ball number display unit 16 that variably displays the number of balls thrown. On both sides of the display panel 12,
A pair of speakers 18 is provided. This speaker 1
8, by voice, "play ball" indicating the start of pitching practice, "ball" indicating the determination result of the pitched ball,
It is supposed to announce "strikes".

Reference numeral 17 is a protective net which is arranged so as to surround the ball judging board 1, the mounds 2, 3, the coin box 5, the speed gun 7, the display board 12 and the control board 9. A printer 19 is provided on the front surface of the control panel 9 as shown in FIGS. 3 and 4. This printer 19
Prints out the throwing position of the ball thrown after the practice of throwing, the number of strikes, the number of balls, and the speed of the thrown ball. The ball judging board 1 is provided at a target pitching position of a ball, and as shown in FIGS. 5 and 6, a mounting frame 20, a large number of buffer absorbing wires 21 arranged behind the mounting frame 20, and a buffer absorbing wire 21. And a buffer absorption plate 22 arranged at the rear of the.

The mounting frame 20 is formed in a rectangular shape having an opening window 23, and is fixed upright on the installation surface by a fixing bolt 24. A large number of first light projecting sensors 27 are arranged in a row in the lateral direction at equal intervals on one of the upper portion and the lower portion of the mounting frame 20. On the other of the upper part and the lower part of the mounting frame 20, a large number of first light receiving sensors 28 are arranged in a row in the lateral direction at equal intervals. The respective first light projecting sensors 27 and the respective first light receiving sensors 28 correspond respectively to the upper and lower sides, and the respective first light projecting sensors 27 direct rays parallel to each other to the first light receiving sensor 28 corresponding to the vertical direction. And each of the first light receiving sensors 28
The light from the light projecting sensor 28 is received.

On one of the left and right sides of the mounting frame 20, a large number of second light projecting sensors 29 are provided at equal intervals in a line in the vertical direction. On the other of the left and right sides of the mounting frame 20, a large number of second light receiving sensors 30 are provided at equal intervals in a line in the vertical direction. The respective second light projecting sensors 29 and the respective second light receiving sensors 30 correspond to the left and right, respectively, and the respective second light projecting sensors 29 respectively correspond to the light rays parallel to each other in the horizontal direction.
Light is emitted toward 0, and each second light receiving sensor 30 receives the light from the corresponding second light emitting sensor 29.

Therefore, by means of a large number of first light emitting sensors 27 and a large number of second light emitting sensors 29, light is emitted from the ball corresponding to the opening window 23 of the mounting frame 20 which is a surface orthogonal to the ball throwing direction. A large number of first light emitting sensors 2 are emitted in a grid pattern vertically and horizontally at intervals smaller than the size, and when the thrown balls pass through the opening window 23 of the mounting frame 20.
The light of any one of 7 is blocked, and a large number of second
By blocking (blocking) one of the light projecting sensors 29 from light, and detecting (turning on) the light blocking by the first light receiving sensor 28 and the second light receiving sensor 30 corresponding thereto, the opening window 2
It is possible to detect which position of 3 has been passed. Therefore, a large number of first light emitting sensors 27,
The light receiving sensor 28, the large number of second light emitting sensors 29, and the large number of second light receiving sensors 30 constitute pitching position detection means 31 for detecting the position of the ball that has been pitched.

The buffer absorption wire 21 is shown in FIGS.
As shown in, a large number of balls are provided at intervals smaller than the diameter of the ball. A plurality of wire rows are provided in the front-rear direction in which the buffer absorption wires 21 are arranged in the lateral direction at intervals smaller than the diameter of the ball.
That is, as shown in FIG. 7, the wire row is provided with four rows of the first wire row 32A, the second wire row 32B, the third wire row 32C, and the fourth wire row 32D from the front side toward the rear side. Cage, each wire row 32A, 32B, 32
The buffer absorption wires 21 of C and 32D are arranged so as to be located between the buffer absorption wires 21 of the wire rows that are adjacent to each other in the front and rear, and thus the multiple buffer absorption wires 21 are arranged in a zigzag pattern.

The shock absorbing wire 21 is shown in FIGS.
As shown in FIG. 0, the coil spring 34 is fitted with a cylindrical covering 35 formed of vinyl, and both ends of the shock absorbing wire 21 are vertically moved by hooks 36, 37 by locking tools 38, 39. The shock absorbing wires 21 are stretched in the up-down direction by being connected to the supporting members 40 and 41 of the above, so that the shock absorbing wires 21 can pass between the shock absorbing wires 21 while the ball slows down. It is configured to be elastically deformable. Here, the arrangement of the buffer absorption wire 21 will be described in more detail. As shown in FIG.
For each mm, each wire row 32A, 32B, 32C,
The buffer absorption wire 21 in 32D is 50 m in the lateral direction.
They are spaced apart by m. Each wire row 32A,
32B, 32C and 32D are 25 × √3mm in the front-back direction.
Are separated from each other.

Further, each buffer absorption wire 21 of the second wire row 32B is located at the center between the adjacent buffer absorption wires 21 of the first wire row 32A, and the first wire row 3
The buffer absorbing wire 21 of 2A and the buffer absorbing wire 21 of the second wire row 32B are sequentially positioned at the vertices of an equilateral triangle spaced by 50 mm. Also, the fourth
Each buffer absorption wire 21 of the wire row 32D is located in the center between the adjacent buffer absorption wires 21 of the third wire row 32C, and the buffer absorption wire 21 of the first wire row 32A and the buffer absorption wire of the second wire row 32B. 21 and 21 are sequentially positioned at the vertices of an equilateral triangle spaced by 50 mm.

Each buffer absorption wire 21 of the third wire row 32C is provided at a position laterally offset by 12.5 mm from the center between the adjacent buffer absorption wires 21 of the second wire row 32B. That is, each buffer absorption wire 21 of the third wire row 32C is the first wire row 3
12.5 laterally with respect to the buffer absorption wire 21 of 2A
The fourth wire row 32 is at a position shifted by mm.
Each buffer absorption wire 21 of D is the second wire row 32B.
12.5mm in the lateral direction with respect to the buffer absorption wire 21 of
They are in different positions.

Therefore, the buffer absorption wire 21 of the second wire row 32B and the buffer absorption wire 21 of the third wire row 32C are not located at the vertices of an equilateral triangle which are spaced by 50 mm in sequence, and this , A portion slightly separated from the buffer absorption wire 21 of the second wire row 32B and the buffer absorption wire 21 of the third wire row 32C is slightly larger than 50 mm, and the thrown ball serves as a buffer for the second wire row 32B. It is possible to prevent the absorption wire 21 from stopping between the absorption wire 21 and the buffer absorption wire 21 of the third wire row 32C.

Then, as shown in FIG. 5, a strike zone 43 is formed in the mound 2, on the buffer absorption wire 21.
It is displayed so that it can be seen from the 3 side. The strike zone 43 has three types of heights, a high strike zone 43a, a medium strike zone 43b, and a low strike zone 43c, which are drawn by different colors. As shown in FIG. 6, the buffer absorbing plate 22 is formed in a plate shape by a cushion material, is vertically arranged so as to face the opening window 23 of the mounting frame 20, and is stretched in a rectangular frame body 45. Thus, the buffer absorbing plate 22 is provided in the direction orthogonal to the ball throwing direction, and the buffer absorbing wire 21 is provided.
The ball that passes through is received and dropped on the ground.

As shown in FIG. 2, the ground 44 on which the pitching practice is performed is gently descending from the ball judging board 1 toward the ball sorting and supplying machine 11, and the mound 2,
The ball descends and inclines gently from the side 3 toward the ball selection / supply device 11 side, and all the balls that have fallen to the ground roll toward the ball selection / supply device 11. Therefore, the pitched ball passes through the cushioning absorption wire 21, hits the cushioning absorber plate 22 and falls below the cushioning absorber plate 22, and then rolls on the ground 44 to be automatically collected on the side of the ball sorting and feeding machine 11. To be The balls collected on the side of the ball sorting / supplying machine 11 are the ball sorting / supplying machine 1
It is configured to be sorted by 1 and automatically sent to the mounds 2 and 3 as needed.

As shown in FIG. 11, the control panel 9 receives signals from the selection switch 46 for selecting the strike zone, the coin box 5, the speed gun 7, the ball determination panel 1, etc., and displays the display panel 12 and the speaker 18. , Printer 19
Is configured to be driven and controlled. The control panel 13 has a timer, a memory, etc., and has a judging means 47 for judging a strike and a ball, a strike number calculating means 48 for calculating the strike number, and a ball number calculating means 49 for calculating the ball number. A maximum speed discriminating means 50 for discriminating the maximum speed of a pitching ball today, an end discriminating means 51 for discriminating the end of pitching practice, and a strike zone setting means 52 are provided.

The judging means 47 compares the pitch position detected by the pitch position detecting means 31 with the preset strike zone position to judge the strike of the pitched ball and the ball. The positions of the first light receiving sensor 28 and the second light receiving sensor 30 that have been turned on (coordinate position (X / Y)) are compared with a preset position within the strike zone (coordinate position (X / Y)),
First light receiving sensor 28 and second light receiving sensor 3 which are turned on
If any one of the positions 0 (coordinate position (X / Y)) is within the strike zone (coordinate position (X / Y)), the ball thrown is determined to be a strike and turned on. First light receiving sensor 28 and second light receiving sensor 30
If the position (coordinate position (X / Y)) is not a position (coordinate position (X / Y)) within the strike zone, the pitched ball is determined to be the ball.

The strike number calculating means 48 calculates the strike number by sequentially adding the number of strikes determined by the determining means 47 one by one. Ball number calculation means 49
Calculates the number of balls by sequentially adding one by one to the number of balls judged by the judging means. The maximum speed determination means 50 sequentially compares the ball speed detected by the speed gun 7 and the maximum speed up to the previous time, and determines whether the ball speed of the current pitch is higher than the maximum speed up to the previous time. , If the ball speed by this pitch is high, rewrite the maximum speed to the ball speed by this pitch, and if the maximum speed up to the previous time is large, leave the maximum speed value up to the previous time as the maximum speed.

The end discriminating means 51 performs pitching practice when the number of balls calculated by the ball number calculating means 48 reaches a predetermined number (20 balls) or when a predetermined time (15 minutes) has elapsed from the start of pitching. To end. The strike zone setting means 52 inputs the signal from the selection switch 46 for selecting the strike zone so that the strike zone selected by the selection switch 46 is set,
Table value that shows the coordinates in the strike zone (XY)
Corresponding to the selected high strike zone 43a, medium strike zone 43b or low strike zone 43c, and when the determination means 47 makes a determination, the first light receiving sensor 28 and the second light receiving sensor 28 turned on by the pitching ball
The coordinates in the strike zone to be compared with the position of the light receiving sensor 30 (coordinate position (X / Y)) are changed.

That is, when the strike zone is set to the high strike zone 43a by the selection switch 46, the table value (XY) indicating the coordinates in the strike zone is set.
Are indicated by circles in FIG. 13 (X7 / Y4) / (X8 / Y)
4) ... The coordinates are (X13, Y14). The strike zone is set to the medium strike zone 4 by the selection switch 46.
When set to 3b, the table value (X · Y) indicating the coordinates in the strike zone is indicated by a triangle in FIG. 13 (X7 · Y).
5) The coordinates are (X8, Y5) ... (X13, Y15). Further, when the strike zone is set to the low strike zone 43c by the selection switch 46, the table value (X / Y) indicating the coordinates in the strike zone is shown in FIG.
Marked with an X (X7 / Y6) (X8 / Y6) ... (X13
・ It becomes the coordinates of Y16). The setting of the strike zone can be instantaneously changed by the selection switch 46, and the strike zone can be changed by the selection switch 46 even during the pitching practice.

Next, the method of judging the strike or out by the judging means 47 will be concretely described. If the set (coordinates (X, Y)) of the first light receiving sensor 28 and the second light receiving sensor 30 in the strike zone is turned on, it is determined to be a strike, and otherwise is determined to be a ball. That is, when the strike zone is set to the high strike zone 43a, a set (coordinates (X, Y)) of the first light receiving sensor 28 and the second light receiving sensor 30 which are turned on is indicated by a circle in FIG. (X7 / Y4) / (X8 / Y4) ... (X13 / Y1)
When it is a set of the first light receiving sensor 28 and the second light receiving sensor 30 at the coordinate position of 4), it is determined to be a strike,
Otherwise, the ball is determined. When the strike zone is set to the medium strike zone 43b, the set of the first light receiving sensor 28 and the second light receiving sensor 30 which are turned on is indicated by a triangle mark in FIG. 14 (X7, Y5) (X8, Y).
5) ... When it is a set of the first light receiving sensor 28 and the second light receiving sensor 30 at the coordinate position of (X13 · Y15),
It is determined to be a strike, and otherwise it is determined to be a ball.

When the strike zone 43 is set to the low strike zone 43c, the set of the first light receiving sensor 28 and the second light receiving sensor 30 which are turned on is shown in FIG.
Marked with an X (X7 / Y6) (X8 / Y6) ... (X13
-When the combination of the first light receiving sensor 28 and the second light receiving sensor 30 located at the coordinate position of Y16) is determined to be a strike, otherwise it is determined to be a ball. Taking the case where the position of the pitched ball is A to G shown in FIG. 12 as an example, the strike zone is the low strike zone 4
When set to 3c, the strike zone coordinates are
Shown by X in FIG. 15 (X7 / Y6) (X8 / Y6) ...
Since the coordinate position of (X13 · Y16) is the strike area, in the case of A, the set of the first light receiving sensor 28 and the second light receiving sensor 30 which has been turned on has the coordinate position (X10 · Y10) in the strike zone 43. The first light receiving sensor 28 and the second light receiving sensor 30 form a set and are determined to be a strike.

In the case of D, the coordinates of the set of the first light receiving sensor 28 and the second light receiving sensor 30 which are turned on are (X8
・ Y7) (X9 ・ Y7) (X8 ・ Y8) (X9 ・ Y9)
Since all are in the strike zone, the judgment is a strike. Next, in the case of F, the coordinates of the set of the first light receiving sensor 28 and the second light receiving sensor 30 which are turned on are:
Since (X10 · Y5), the X axis is within the strike zone, but the Y axis is not within the strike zone, so the determination is a ball.

In the case of E, the first light receiving sensor 28 turned on
And the coordinates of the pair of second light receiving sensors 30 are (X7 · Y
7), and it is within the strike zone, so the strike is determined. In the case of G, the coordinates of the ball (the coordinates of the set of the first light receiving sensor 28 and the second light receiving sensor 30 that are turned on) are (X6 · Y13) (X6 · Y14) (X
7 / Y13) (X7 / Y14) and coordinates (X6 / Y)
13) (X6, Y14) is not in the strike zone, but the coordinates (X7, Y13) (X7, Y14) are in the strike zone 43, so the determination is a strike.

Further, in the cases of B and C, the ball coordinates (the coordinates of the pair of the first light receiving sensor 28 and the second light receiving sensor 30 which are turned on) are completely out of the strike zone 43, so that the ball is determined. Next, when the medium strike zone 43b is selected by the selection switch 46, the X coordinate of the strike zone remains unchanged from X7 to X14, as shown by Δ in FIG. 14, but the Y coordinate becomes the range of Y5 to Y15, and F
The coordinates of the ball (the coordinates of the set of the first light receiving sensor 28 and the second light receiving sensor 30 which are turned on) are (X10 · Y5)
Since it is in the strike zone, the judgment is a strike.

Next, the control operation by the control panel 9 will be described with reference to the flow charts of FIGS. In step 1, it is determined whether or not the start signal is input. If the start signal is not input, the process returns to step 1, and if the start signal is input, the process proceeds to step 2. Step two
Then, the speed display unit 14, the strike number display unit 15, and the ball number display unit 16 of the display board 12 are displayed as "0" to initialize the display of the display board 12 and to measure the end time of the pitching practice. After the timer is activated and the voice of the play ball is announced by the speaker 18, the process proceeds to step 3.

Therefore, in step 1, the coin box 5 waits until a predetermined coin is inserted, and if the predetermined coin is inserted into the coin box 5, the display of the maximum speed display section 13 of the display board 12 is not changed. , Speed display 1
4. Strike number display section 15 and ball number display section 16
Will be displayed as "0" and the pitching practice can be started. In step 3, it is determined whether or not any one of the plurality of first light receiving sensors 28 and the plurality of second light receiving sensors 30 is turned on, and the plurality of first light receiving sensors 28 and the plurality of second light receiving sensors 30 are detected. If none of them is turned on, the process returns to step 3 and the operation of determining whether or not it is turned on is repeated. If any of the plurality of first light receiving sensors 28 and the plurality of second light receiving sensors 30 is turned on, the process proceeds to step 4 and step 21.

Therefore, the process waits until there is a ball thrown in step 3, and if there is a ball thrown, step 4
Strike ball is judged in step 2
With 1, the speed data of the pitching ball from the speed gun 7 is captured. Then, the control operation of steps 4 to 15 and the control operation of steps 21 to 24 are performed in parallel. In the control operation of steps 21 to 24, step 21 shown in FIG.
Then, the speed data of the pitching ball of this time is loaded from the speed gun 7 to the control panel 9, and in step 22, the ball speed of this pitching is compared with the maximum speed of the last time, and the ball speed of the current pitching is the same as before. It is determined whether or not it is higher than the maximum speed of, and if the ball speed by the current pitch is high, the maximum speed is rewritten to the ball speed by the current pitch in step 23, and the speed is changed on the maximum speed display section 13. Display and proceed to step 24. If the ball speed of the current pitch is not higher than the maximum speed of the last time, the process proceeds from step 22 to step 24. In step 24, the ball speed of the current pitch is variably displayed on the speed display unit 14.

Therefore, the speed of the pitched ball is sequentially displayed on the speed display unit 14 and, if the speed of the pitched ball reaches the maximum speed of today, the speed is variably displayed on the maximum speed display unit 13. .
On the other hand, the control operation in steps 4 to 15 is as follows.
That is, in step 4 shown in FIG. 17, by comparing the positions of the first light receiving sensor 28 and the second light receiving sensor 30 that are turned on with the preset strike zone position,
Determine whether the ball thrown is a strike or a ball.
If it is determined that the pitched ball is a ball, the process proceeds to step 5, in which step 1 is added to the current number of balls to calculate a new number of balls, and in step 6, the calculated number of balls is displayed. The number of balls is variably displayed on the number-of-balls display unit 16 of the board 12, and the voice of "ball" is generated by the speaker 18 in step 7, and then the process proceeds to step 11.

If it is determined in step 4 that the ball thrown is a strike, the process proceeds to step 8, in which a new strike number is calculated by adding 1 to the current strike number, and in step 9 The calculated number of strikes is variably displayed on the number-of-strikes display section 15 of the display panel 12, and the speaker 18 makes a sound of "strike" in step 10, and then the process proceeds to step 11. In step 11, the position of the pitched ball is stored in the memory, and the process proceeds to step 12. Therefore, when the ball is thrown, the number of strikes and the number of balls hit so far are respectively the number of strikes display section 15 and the ball display section 16
And the pitching position is sequentially recorded in the memory.

In step 12, it is judged whether or not the number of balls calculated in step 5 has reached a predetermined number (20). If the number of balls reaches the predetermined number, the position of the ball thrown in step 13 and the pitch The ball speed, the strike of the pitched ball, or the judgment result of the ball are printed out, and the pitching practice ends in step 15. If it is determined in step 12 that the number of balls has not reached 20, the process proceeds to step 13, and in step 13, it is determined whether or not a predetermined time (15 minutes) has elapsed since the start signal was input, and the predetermined time is determined. If (15 minutes) has elapsed, a printout is made in step 13 and the pitching practice is ended in step 15. If the predetermined time (20 minutes) has not elapsed, the process returns from step 13 to step 3.

Therefore, if the number of balls is less than 20 and before the lapse of a predetermined time from the start of the pitching, the practice of the pitching can be continued, and the strike of the pitched ball or the judgment of the ball can be performed and the pitching can be performed. The speed of the ball played can be detected and displayed in steps 21-24. On the other hand, when the number of balls reaches 20 or a predetermined time has elapsed from the start of the pitch, the content of the pitch is printed out,
The pitching practice is over. It should be noted that after the pitched ball passes through the opening window 23 and any of the first light receiving sensor 28 and the second light receiving sensor 30 is turned on, the ball is rebound (within 2 seconds) by the bouncing of the pitched ball or the like. 23
Even if one of the first light receiving sensor 28 and the second light receiving sensor 30 is turned on after passing through, the signal of the speed gun 7, the first light receiving sensor 28, and the second light receiving sensor 30 are transmitted in this case. The signal is not taken into the control panel 9.

From the end of the pitching practice to the start of the next pitching practice, the displays of the speed display section 14, the strike number display section 15 and the ball number display section 16 of the display panel 12 of the previous pitching exercise are left as they are, I am trying to clear these indications by starting the next pitching practice. Further, in the above-described embodiment, when the number of balls reaches a predetermined number (20 balls) from the start of the pitching practice, the pitching practice is ended, but the number of balls is not limited to 20 balls, and a switch or the like may be used. It can be variably set. Further, in the above-mentioned embodiment, a predetermined time (15
Although the pitching practice is terminated when (minutes) has elapsed, this predetermined time (15 minutes) can also be arbitrarily set by a switch or the like.

Further, for example, in order to easily understand during the pitching practice whether the high strike zone 43a, the medium strike zone 43b or the low strike zone 43c is selected by the selection switch 46 during the pitching practice. You may make it provide the display part which displays the selected strike zone on the side. In the above embodiment, the strike zone 43 is drawn and displayed on the buffer absorption wire 21, but instead of this, the strike zone 43 is displayed on the buffer absorption wire 21.
May be projected by a projector, and by doing so, the strike zone 43 can be changed easily and surely by changing the image of the projector.

Further, in the above-described embodiment, the pitch position detecting means 31 for detecting the position of the pitched ball is composed of a large number of first light emitting sensors 27, a large number of second light emitting sensors 29, and a large number of first light receiving elements. Although the sensor 28 and the plurality of second light receiving sensors 30 are used, instead of this, the position detecting means 31 is constituted by, for example, a camera, and the image of the thrown ball is captured from the camera to the control panel 9, and the control panel is controlled. The determination means 47 of 9 may perform arithmetic processing to determine the strike and the ball.

[0044]

According to the present invention, it is possible to clearly know whether it is a strike or a ball, and it is possible to practice effective pitching.

[Brief description of drawings]

FIG. 1 is a plan view of an entire pitching training machine showing an embodiment of the present invention.

FIG. 2 is a side view of the entire pitching training machine.

FIG. 3 is a front view of the display panel and the control panel.

FIG. 4 is a side view of the display panel and the control panel.

FIG. 5 is a front view of the ball determination board.

FIG. 6 is a side view of the ball determination board.

FIG. 7 is a plan view showing an arrangement state of the cushioning absorption wire.

FIG. 8 is a side view of the same cushioning absorption wire portion.

FIG. 9 is a cross-sectional view of the buffer absorption wire.

FIG. 10 is a side view of the upper portion of the buffer absorption wire.

FIG. 11 is a block diagram of the control system.

FIG. 12 is an explanatory diagram for explaining a determination method of the strike ball.

FIG. 13 is an explanatory diagram for explaining a determination method of the strike ball.

FIG. 14 is an explanatory diagram for explaining a method of determining the same strike ball.

FIG. 15 is an explanatory diagram for explaining a method of determining the strike ball.

FIG. 16 is a flowchart for explaining a control operation.

FIG. 17 is a flowchart for explaining a control operation.

FIG. 18 is a flowchart for explaining a control operation.

FIG. 19 is a schematic side view showing a conventional example.

[Explanation of symbols]

15 Strike number display 16 ball number display 27 First light emitting sensor 28 First light receiving sensor 29 Second light emitting sensor 30 Second light receiving sensor 31 pitching position detection means 47 Judgment means 48 Strike Count Calculation Means 49 Number of balls calculation means

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliographic data Sho 57-95163 (JP, U) Real development Sho 61-60977 (JP, U) Real development Sho 61-36662 (JP, U) (58) Field (Int.Cl. ⁷ , DB name) A63B 69/00

Claims (7)

(57) [Claims] 1. A plurality of first light projecting sensors (27) for projecting light beams parallel to each other at intervals, and to each other at intervals in a direction intersecting the light beams of the first light projecting sensor (27). A large number of second light emitting sensors (2
9) and a plurality of first light-receiving elements for receiving light from the first light-projecting sensor.
A light receiving sensor (28) and the second light projecting sensor (2
9) a plurality of second light receiving sensors (30) for receiving the light, and the positions of the first light receiving sensor (28) and the second light receiving sensor (30) shielded by the pitching ball and the strike zone set in advance. A judgment means (47) for judging the strike of the pitched ball and the ball by comparing the position is provided, and a large number of buffer absorption wires (22) are provided in front of the buffer absorption plate (22) for receiving the pitched ball. 21) is provided at a smaller distance than the diameter of the ball to each other, the buffer intake
Osamu wire (21), the ball between buffer absorbing wire (21) is elastically deformable so configured to be passed through while dropping its speed, in front of the buffer absorbing wire (21), the large number first A pitching practice characterized in that a light emitting sensor (27), a large number of second light emitting sensors (29), a large number of first light receiving sensors (28) and a large number of second light receiving sensors (30) are arranged. Machine. 2. The plurality of shock absorbing wires (21) are
Is stretched in the vertical direction, the wire row formed are arranged laterally buffer absorbing wire (21) at a smaller interval than the diameter of the ball is provided a plurality of rows in the longitudinal direction, each wire
Buffering absorbing wire yer column (21), sideways against buffer absorption wires (21) of wire column adjacent in the longitudinal direction
The pitching training machine according to claim 1, wherein the pitching training machine is arranged so as to be offset from each other . 3. A plurality of first light-projecting sensors (27) project parallel rays of light in a plane orthogonal to the ball's pitching direction, and at the same time, in a plane orthogonal to the ball's pitching direction. The plurality of first light projecting sensors (27) and the plurality of second light projecting sensors (29) are arranged so that parallel light rays are projected from the plurality of second light projecting sensors (29). The pitching training machine according to claim 1 or 2, characterized in that. 4. The plurality of first light projecting sensors (27).
Is provided so as to project parallel light at equal intervals, and the plurality of second light projecting sensors (29) are arranged so as to be parallel to each other in a direction orthogonal to the light of the first light projecting sensor (27). The pitching training machine according to any one of claims 1 to 3, wherein the pitching training machine is provided so as to project light at equal intervals. 5. A strike number calculation means (48) for calculating the number of strikes determined by the determination means (47).
And a ball number calculating means (49) for calculating the number of balls discriminated by the judging means (47), and a strike number display section (15) for displaying the strike number calculated by the strike number calculating means (48). The pitching training machine according to any one of claims 1 to 4, further comprising: a ball number display section (16) for displaying the number of balls calculated by the ball number calculation means (49). 6. The ball number calculation means (4) from the start of pitching.
The pitching training machine according to any one of claims 1 to 5, wherein the pitching training is terminated when the number of balls calculated in 9) reaches a predetermined number. 7. The method according to claim 1, wherein a timer is activated upon the start of pitching, and the pitching practice is ended by the timer when a predetermined time has elapsed from the start of pitching.
The pitching training machine according to any one of to 6.