JP2740086B2 - Hitting motion practice 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 swing table on which a subject who hits a ball while holding a hitting tool is placed, load measuring means for measuring the load or the center of the entire body of the subject or each of the right and left feet, and a hit ball. The present invention relates to a hitting ball training machine provided with control means for storing measurement data of the load measuring means in operation and displaying the stored measurement data on a display means.

[0002]

2. Description of the Related Art Such a ball hitting training machine is used for practicing a ball hitting operation such as golfing and batting. It is well known that in the practice of the hitting ball operation, whether or not the center of gravity is correctly shifted accompanying the hitting ball operation is an important index for forming a correct hitting ball form. Therefore, such a hitting ball practice machine conventionally measures a load or a load center during a hitting ball motion, displays this measurement data on a display means, and also displays a reference locus as reference data for comparison. I was The subject evaluated the hitting ball motion by comparing the display of the measured data with the display of the reference trajectory (for example, see Japanese Patent Application Laid-Open No. 3-55075 previously proposed by the present applicant). ).

[0003]

Therefore, in the above-mentioned conventional example, when evaluating the hitting ball motion, the subject compares the display of the measurement data with the display of the reference locus.
Therefore, in this conventional evaluation method, there is a problem that the evaluation is time-consuming, the evaluation level is not quantitative, and the evaluation cannot be performed in detail (can only be performed roughly) because the evaluation is performed visually. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a hitting motion training machine that can quickly and accurately evaluate a hitting motion of a subject.

[0004]

According to the present invention, there is provided a hitting motion training machine for measuring a load on a swing table on which a test subject who hits a ball while holding a hitting tool is placed, and the load on the entire body of the test subject or on each of the right and left feet. And a control means for storing measurement data of the load measurement means in a ball-hitting operation and displaying the stored measurement data on a display means. Multiple feature points during hitting motion
Feature point detecting means for detecting
Of the subject's entire body between the detected feature points
The positional relationship of the load center on the two-dimensional plane is compared with the reference data for comparison.
Evaluation means for evaluating the hitting motion of the subject compared to the data
Is provided, and the control means includes an evaluation result of the evaluation means.
The result is displayed on the display means . The second characteristic configuration is that the evaluation means is configured to evaluate the hitting motion of the subject for each of the back swing, the down swing, and the follow swing. The third characteristic configuration is that the control means is configured to display the evaluation result of the evaluation means as a comment on the display means.

[0005]

According to the first feature configuration, for example, when a subject performs a hitting ball on a swing table, the load measuring means
The load or the load center of the whole body of the subject or each of the left and right feet
It is measured and the ball
A plurality of feature points during the work are detected. Evaluation means
Between the feature points detected by the feature point detection means.
Between the two-dimensional plane of the center of load of the entire body of the subject
Is compared with reference data for comparison.
The hitting motion of the player is evaluated. And in this hitting motion
Measurement data of the subject's load or the center of load
Is displayed on the screen, and the comparison
Displayed on the display. According to the second feature configuration, the subject between feature points
Of the center of load of the whole body on the two-dimensional plane for comparison
Back swing,
Tested for down swing and follow swing
The hitting motion of the player is evaluated, and the comparison evaluation result is displayed on the display
Will be displayed. According to the third feature configuration, the comparison evaluation result in the first feature configuration or the second feature configuration is displayed on the display device as a comment.

[0006]

According to the first characteristic configuration, the characteristic during the hitting operation is achieved.
The center of the weight of the subject's entire body between the points
The positional relationship on the three-dimensional plane is compared with the reference data for comparison.
And the result of the comparative evaluation is displayed on the display device.
Therefore, the subject need only look at the display of the comparative evaluation result.
Therefore, there is no need to compare and evaluate the indications separately. Only
Also based on feature point data in a series of hitting motions
Therefore, the comparative evaluation is performed.
Accurately evaluate whether or not movement has been performed correctly
be able to. Thereby, in the hitting motion of the subject
Hitting ball practice machine that can perform evaluation quickly and accurately
Can be provided. According to the second feature configuration, the evaluation of the hitting motion can be performed by specifying the evaluation points in the hitting motion as backswing, downswing, and follow swing, respectively.
It is possible to provide a hitting motion training machine that can practice more effectively. According to the third feature configuration, the comparative evaluation result is displayed in a comment.
Displayed on the display device, the comparative evaluation result is easier to understand
It will be displayed well, so more convenient hitting operation
A training machine can be provided.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment in which a hit ball motion training machine of the present invention is applied to a golf training machine will be described with reference to the drawings.
1, 2 and 3, reference numeral 1 denotes a swing stand, 2 denotes a tea stand, 3 denotes a processing device, and 4 denotes a display device as display means. The golf practice machine of the present embodiment processes the detection data of the load detection sensor D provided on the swing table 1 by the processing device 3 during the swing, displays the center of the load on the display device in real time, and displays the load or The data is temporarily stored as time-series data of the center of load, and the stored data is displayed after the hitting operation (hereinafter also referred to as a swing), and the evaluation result of the swing is displayed. Hereinafter, each device will be described.

The swing table 1 is composed of two load measuring tables 10 and 11 corresponding to the right and left feet, respectively.
Are four load cells 12, 1 as load detection sensors D
Four corners are supported by 3, 14, and 15, and the load measuring table 11 is supported at four corners by four load cells 16, 17, 18, and 19 as load detection sensors D. On the swing table 1, the subject holding the club C swings. At this time, the load applied to the swing table 1 is shared by the eight load cells 12 to 19 supporting the two load measuring tables 10 and 11, and from these outputs, the load of the subject and the load center, Further, a load and a load center corresponding to each of the left and right feet of the subject are obtained.

A mounting tool 25 for mounting a ball 24 is mounted on the tea stand 2. A first reflection type optical sensor 21 is provided on the other side of the club head passage at the position where the ball 24 is set, as a ball presence / absence detecting means for detecting the presence / absence of the ball 24. A second reflection type optical sensor 22 as a club head detecting means for detecting the presence or absence of a club head is provided at a position close to the back swing side of 21. The control box 26 incorporates a drive circuit for the first and second reflective optical sensors 21 and 22. The detection result of the first reflection type optical sensor 21 is
The time when the ball presence detection state is changed to the ball absence detection state is determined as a hit ball equivalent time point (hereinafter also referred to as an impact time point).

The processing unit 3 includes an arithmetic unit 31 for performing arithmetic processing for obtaining a load and a center of load, a sequence control of the apparatus, an I / O interface 32 for passing various data, and measuring information of the load and the center of the load. It comprises a storage device 33 as storage means for storing, an operation console 34 for selecting an operation mode of the device and inputting various comments, an external storage device 35 for storing measurement information and the like. The display device 4 includes a graphic display device 41 and a plotter 42.
The graphic display device 41 displays a two-dimensional trajectory of the load center, and the plotter 42 displays a time change of the load. The storage area of the storage device 33 is divided into a first area in which data before the impact point is stored and a second area in which data after the impact point is stored in terms of software processing. The storage capacity of the first area and the storage capacity of the second area are secured respectively. When the first area overflows, the old data is discarded sequentially. When the second area overflows, the storage is stopped. It is configured to be.

Next, a process in which the arithmetic unit 31 calculates the load and the center of the load will be described. The subject holding the club C takes a stance by standing at the approximate center of the swing table 1 with the left and right feet on the two load measuring tables 10 and 11, respectively. Taking the load measuring table 10 on which the subject puts the left foot as an example, the outputs of the load cells 12, 13, 14, and 15 at the four corners of the load measuring table 10 are previously adjusted by zero adjustment in the load converter 100, respectively. Since the loads have been offset, the total WL of the outputs W1, W2, W3, and W4 is the load of the subject's left foot on the load measuring table 10. That is, WL = W1 + W2 + W3 + W4 Further, at this time, the position where the load is applied and the four load cells 1
Since the load output of each load cell differs depending on the relationship with the installation positions 2 to 15, the load center of the load applied to the load measuring table 10 can be obtained from these outputs. That is, the left-right component X and the front-rear component Y of the load center expressed with the load cell 12 in FIG. 1 as the origin are four load cells 12 to 15 each having a rectangular shape having a width a in the X direction and a width b in the Y direction. X = (W2 + W3) × a / WL Y = (W3 + W4) × b / WL. Note that the load cells 12, 13,
Even when the arrangement of 14 and 15 is not at the four corners of the rectangle, the center of load can be obtained by performing a correction unique to the geometric arrangement of the load cells. If three or more load cells are provided, the center of load applied to the swing table 1 can be obtained. The load measuring table 11 on which the subject places the right foot is also configured in the same manner as the load measuring device 10,
In the same manner as above, the load center of the load applied to the load measuring table 11 can be obtained. That is, the center of load corresponding to each of the right and left feet of the subject can be obtained.

For the load on both feet of the subject, that is, the whole body and the load center, the load applied to the load measuring table 11 is represented by W
Let R be the load cell 16 as in the case of the left foot.
From the outputs W5 to W8 of ８19, WR = W5 + W6 + W7 + W8 The load WT of the whole body is obtained by WT = WL + WR, and the load center is the distance between the load center corresponding to the subject's left foot and the load center corresponding to the right foot. Assuming that L is on a line segment connecting the left and right load centers, it is located at a position WR × L / WT away from the load center corresponding to the left foot, and this may be calculated. Therefore, the arithmetic unit 31 functions as the load measuring unit S.

As shown in FIG. 3, eight load cells 12 to
Outputs W1 to W4 and W5 to W8 of 15 and 16 to 19
Is a load converter 100 including a measurement bridge circuit, a signal amplifier circuit, and an A / D converter. After compensating for the weight of the swing table 1 as described above, the load converter 100 is sampled at regular intervals.
Digital amount. And I / O interface 3
2, and sequentially taken into the processing device 3. The load or the load center of the whole body of the subject or each of the right and left feet is obtained by the arithmetic unit 31 in the processing device 3 according to the above-described equation. Then, the obtained load or the load center of the whole body of the subject or each of the left and right feet is displayed on the graphic display device 41 of the display device 4 in real time. Further, between the time when the first reflection type optical sensor 21 detects the presence of the sphere 24 and the time when the set time elapses after detecting the absence of the sphere 24, the determined whole body of the subject or each of the left and right feet is obtained. The time series data of the load or the center of the load is stored in the storage device 33 together with the time series data of the detection information of the first reflection type optical sensor 21 and the second reflection type optical sensor 22. The arithmetic unit 31 calculates the swing start point, body turn start point, top position time,
Each of the swing-down points is detected as described later, and the load centers corresponding to the right and left feet of the subject and the loads corresponding to the entire body of the subject at the addressing time are averaged by averaging the respective load centers before the swing start point. The center is detected as an address point, and the detection results are stored in the storage device 33 together with the time-series data. Further, the arithmetic unit 31
In the time series data of the load or the center of the load on the whole body or each of the left and right feet of the subject, backswing from the swing start point to the top position time, downswing from the top position time to the impact time, downswing from the impact time, The swing is distinguished as a follow swing, and the subject's swing is evaluated for each of the back swing, the down swing, and the follow swing.

Next, the process in which the arithmetic unit 31 detects the swing start point will be described. The storage device 33 also stores, in chronological order, information on whether or not the second reflective optical sensor 22 has detected the passage of the club head, in addition to the data on the load and the load center. Based on the stored information, the arithmetic unit 31 swings the time point when the first second reflective optical sensor 22 detects the passage of the club head by going back in time from the time of hitting, except for the time of about 100 ms immediately before the time of hitting. Detect as starting point.

Next, a process in which the arithmetic unit 31 detects a body turn start point will be described. Of the load and load center data obtained by the arithmetic unit 31 and stored in the storage device 33 as described above, the time change of the load on the lower leg of the subject in the backswing direction shown in FIG. In FIG. 4, a search is started from data corresponding to the swing start point indicated by a point A in FIG. The position on the time axis of point B is detected as a body turn start point.

Next, the process in which the arithmetic unit 31 detects the top position time point will be described. The arithmetic unit 31 time-differentiates the component in the left-right direction, that is, the X direction, of the time-series data of the load center corresponding to the entire body of the subject stored in the storage device 33 obtained as described above, and calculates the X of the load center. The time change of the moving speed in the direction is obtained. In the time change of the moving speed in the X direction illustrated in FIG. 5, a point E in FIG.
A point F, which is a predetermined time earlier than the data at the time of the hit ball detected by the first reflection type optical sensor 21 which detects the presence or absence of a ball, is set as a reference time, and data is collected in a direction going back from the point F indicating the reference time. A search is first performed to detect a point G at which the sign of the moving speed in the X direction reverses from negative to positive, that is, the direction at which the direction of the moving speed in the X direction first reverses, as the top position time point. In addition, from the point E indicating the hitting time to the point F which is the reference time.
The time interval is set to prevent the erroneous detection of the case where the direction of the moving speed is directed to the backswing direction immediately before the ball hitting time as the top position time. This time interval is set to 200 ms. The degree is appropriate.

Next, a process in which the arithmetic unit 31 detects a swing-down point will be described. Of the data obtained by the arithmetic unit 31 and stored in the storage unit 33 as described above,
In the time change 90 of the right foot load and the time change 91 of the left foot load shown in FIG. 4, from the point H indicating the top position time point obtained as described above to the point I indicating the hitting time point detected by the first reflective optical sensor 21. Corresponds to a downswing. During this downswing, from the point J indicating the point at which the load on the left and right feet of the subject becomes equal, the foot on the upper hand side in the downswing direction within the time t on the side where time passes and the time t 'on the side going back in time. Is obtained, that is, the rate of change of the load on the right foot, that is, the time differential value. It is appropriate that the time widths t and t 'are both about 50 mS. The point K indicating the time when the absolute value of the rate of change of the time change 90 of the right foot load becomes the minimum value is detected as a swing-down point. Therefore, the arithmetic unit 31, the first reflection type optical sensor
21 and the second reflection type optical sensor 22 are a swing start point,
Start point of body turn, top position, swing down
Features that detect points and impact points as feature points
It functions as point detection means M.

Next, the process in which the arithmetic unit 31 evaluates the subject's swing and displays the evaluation result on the display unit 4 will be described. The arithmetic unit 31 sends the feature point detection means M
Of the subject's body between the detected feature points
Is stored in the storage device 33.
Compared with the reference data stored in the
For each swing, downswing, and follow swing
Then, the hitting motion of the subject was evaluated, and the evaluation result was displayed.
Display device 4 with comments as shown in Table 1 below.
It is configured. Therefore, the arithmetic unit 31 performs the feature point detection.
Subject between feature points detected by means M
Compare the positional relationship of the center of load of the entire body on the two-dimensional plane
The hitting motion of the subject by comparing with the reference data for
Function as evaluation means T.

[0019]

[Table 1] Comments on the backswing 11: Weight is not right on the backswing 12: Weight is too right on the backswing 13: Returning to the left at the top 14: Pulling up the club fast Comments on downswing 21: Weight cannot be transferred to the left foot during downswing 22: The arm swinging down time is delayed during downswing 23: The arm swinging down time has begun early 24: It takes time to move from right to left. Comments on the follow swing 31: The follow-through is small 32: The body is flowing forward after the impact 33: The body is leaning backward after the impact

The evaluation method shown in Table 1 will be described based on the load center locus shown in FIG. In the figure, 60 is the center of load of the entire body, 64 is the address point of the entire body, 63 is the address point of each of the right and left feet, 65 is the swing start point, 66 is the body turn start point, 67 is the top position time point, 68 Is a swing-down point, and 69 is a point of impact. It should be noted that the X-axis in FIG.
The ratio of the address width with the position of the right foot address point 63 as 100% is displayed. Hereinafter, the evaluation method will be described for each comment. However, in each of these ranges, it is determined whether or not the measured data falls within the respective ranges set as the reference data for comparison, and the evaluation is performed. ing. Explaining the comments 11 and 12 in Table 1, first, the right foot load ratio Wr is calculated by Wr = (WR / (WR + WL)) × 100 (%). When the weight is 80% or more, it is determined that the weight is on the right, and when the value of the right foot load ratio Wr is 60% or less, it is determined that the weight is not on the right. Explaining comment 13,
If the top position time point 67 is on the left side of the body turn start point 66, it is determined that the top position has returned to the left. Explaining the comment 14, if the time from the swing start point 65 to the top position time point 67 is shorter than a preset time, it is determined that the club is pulled up faster. Explaining the comment 21, if the load on the right foot at the time of impact is equal to or greater than the load on the left foot, it is determined that the weight has not been shifted to the left foot. Explaining the comments 22 and 23, if the position of the swing-down point 68 is on the left side of the position obtained by adding 10% of the address width to the right of the position at the time of the impact 69, the arm swing-down time during the downswing is delayed. It is determined that the falling point 68 is 45% of the address width.
If it is on the right side of the position, it is determined that the arm swing-down time has started earlier during the downswing. Explaining the comment 24, from the top position time point 67 to the impact time point 6
If the time up to 9 is longer than the preset time, it is determined that it takes time to move from right to left. Explaining the comment 31, if the width of the follow swing in the X-axis direction is shorter than a preset width, it is determined that the follow-through is small. Explaining the comment 32, the load center trajectory after the impact time point 69 is different from the impact time point 69.
If it has moved further to the left, it is determined that the post-impact body is flowing forward, and if the load center trajectory after the impact point 69 is to the right of the swing-down point 68, the post-impact body tilts backward. Judge that

As described above, the processing device 3 functions as the control unit U that causes the display unit 4 to display the measurement data of the load measuring unit S and the evaluation result of the evaluation unit T.

The operation of the apparatus in the use state will be described below with reference to the flowchart of FIG. 7 and FIGS. In the flowchart of FIG. 7, after the power switch (not shown) is turned on to start the apparatus,
The operator sets the operation mode of the apparatus from the console 34. The operation mode has two modes, a reference trajectory display mode and a reference trajectory non-display mode. In the reference trajectory display mode, the two-dimensional trajectory of the load center corresponding to the whole body of the subject stored in the storage device 33 and The center of load corresponding to each of the right and left feet of the subject at the time of address and the center of load corresponding to the entire body of the subject are displayed on the graphic display device 41 during the swing, and are not displayed in the reference trajectory non-display mode. . When one of these two modes is selected and the operation mode setting is completed,
If the operation mode is set to the reference trajectory non-display mode, the process proceeds to a position where the presence or absence of the ball 24 on the next mounting device 25 is detected. If the reference trajectory display mode is set, a desired two-dimensional trajectory is selected as the reference trajectory 51 from the two-dimensional trajectories of the load center corresponding to the entire body of the subject stored in the storage device 33, Along with the reference locus 51, the load center corresponding to each of the right and left feet of the subject at the time of address is referred to as a reference address point 52, and the load center corresponding to the entire body of the subject at the time of address is referred to as a reference load center 53, as shown in FIG. Graphic display device 41
Is displayed, the process proceeds to a position where the presence or absence of the ball 24 on the mounting device 25 is detected.

With the first reflection type optical sensor 21,
Detects whether the ball 24 is placed on the
Is not on the mounting device 25, the detection data of the load detection sensor D is fetched and arithmetic processing is performed to obtain a load center corresponding to the whole body and a load center corresponding to each of the right and left feet, and the load of the left and right feet is obtained. The center point 54 and the load center point 55 of the whole body are displayed on the graphic display device 41 as shown in FIG. 7, and the ratio of the load of each of the right and left feet to the total load (that is, WL / WT and WR / WT). ) Is obtained and displayed as a ratio display point 57 in the display columns 56 provided at the left and right ends of the display screen of the graphic display device 41 so that the larger the ratio value, the higher the ratio value is. After performing this screen control, if the mode change switch of the console 34 is pressed, the operation returns to before the operation mode is set, and if not, the operation returns to the position where the presence or absence of the ball 24 is detected.

When the ball 24 is placed on the placing tool 25, the stored data corresponding to the previous swing and the data displayed on the graphic display device 41 are cleared. Then, by taking in the detection data of the load detection sensor D, the load and the load center of the whole body, the load center corresponding to each of the left and right feet, and the ratio of the load of each of the right and left feet to the total load are obtained by the arithmetic processing. As shown in FIG. 8, the calculation results are stored in the graphic display device 41 in the actual display mode as the load center point 54 of the right and left feet, the load center point 55 of the whole body, and the ratio display point 57 as shown in FIG. I do. After the screen control, if the swing is not completed yet, the process returns to the position where the load detection sensor D takes in the detection data.

If the swing has been completed, that is, if the set time has elapsed from the time of impact, as shown in FIG. 9, the two-dimensional trajectory 60 of the load center of the whole body, the load corresponding to the left and right feet, Two-dimensional trajectories 61 and 62 at the center, an address point 64 indicating the load center of the whole body at the time of addressing, an address point 63 indicating a load center of each of the right and left feet at the time of addressing, a swing start time point 65 in the two-dimensional trajectory 60; The body turn start point 66 in the two-dimensional trajectory 60, the top position time point 67 in the two-dimensional trajectory 60, the swing-down point 68 in the two-dimensional trajectory 60, the impact time point 69 in the two-dimensional trajectory 60, The finish point 70 is displayed on the graphic display device 41 together with the reference trajectory already displayed. To display. Further, data on the time change of the load on the entire body as shown in FIG. 11 is displayed on the plotter 42. In the display of the time change of the load of the whole body, a swing start point 65, a body turn start point 66, a top position time point 67, a swing down point 68, a hit ball time point 69, and a finish point 70 are visually displayed. It is displayed together with the indicating mark 80. The display on the graphic display device 41 displays data from the swing start point 65 to the finish point 70, and the display on the plotter 42 displays data for a predetermined time before and after the ball hitting time. Note that the finish point 70 is at impact time 6
This is a point at which the set time (0.2 seconds) has elapsed from the point 9. Then, when the display of the evaluation result is instructed from the console 34, as shown in FIG. 10, the load center data of the whole body from the swing start point 65 to the finish point 70 and the address points of the whole body and the right and left feet. 63 and 64 are displayed on the graphic display device 41, and a comment of the evaluation result is displayed in a margin above or below this data display.
When any one of back swing, down swing, and follow swing is selected on the console 34,
A load center locus portion corresponding to the selected swing portion is displayed by a dotted line so as to be distinguishable from other locus portions, and a mark 90 for distinguishing a comment corresponding to the selected swing portion is displayed. Then the ball 24
Return to the position where the presence / absence is detected.

[Another Embodiment] In the above embodiment, the reference locus 5
Although the two-dimensional trajectory of the load center corresponding to the entire body is displayed as 1, the two-dimensional trajectory of the load center corresponding to each of the left and right feet may be displayed as the reference trajectory 51, or both may be displayed. Is also good. In the above embodiment, the load measuring table is 2
However, two or more may be used, or a load detection table for measuring the load of the entire body and the center of the load may be separately provided, and the load detection tables 10 and 11 may be arranged in a two-tiered manner. In the above embodiment, the plotter 42 displays the time change of the load of the entire body, but the load W corresponding to each of the right and left feet is displayed.
The time change of L and WR may be displayed. In the above embodiment, each measurement information regarding the load and the load center is stored in the storage device 3.
Although the measurement information is stored in the data storage area of No. 3, the measurement information may be stored in the external storage device 35, read out as necessary, and displayed on the display device 4.
In the above embodiment, the evaluation result of the hitting motion of the subject is displayed in a comment.For example, the load center locus of the subject is compared with the reference locus to determine the most different portion or the least difference portion, The trajectory of the discrimination portion may be displayed so as to be distinguishable from other trajectory portions. Thereby, the worst part or the best part in the hitting ball operation can be determined and evaluated. In the above embodiment, the evaluation result is displayed as a comment as shown in Table 1 above. However, the evaluation content and the evaluation result are examples of the evaluation, and the present invention is not limited to this content.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a plan view of a golf practice machine to which the present invention is applied.

FIG. 2 is a side view of a golf practice machine to which the present invention is applied.

FIG. 3 is a block diagram.

FIG. 4 is a diagram showing detection of a body turn start point and a swing-down point.

FIG. 5 is a diagram showing detection of a top position time point;

FIG. 6 is a diagram showing a method for evaluating a hitting ball motion.

FIG. 7 is a control flowchart.

FIG. 8: Display example of reference trajectory, load center point, etc.

FIG. 9 is a display example of a movement locus of a load center point.

FIG. 10 is an example of display of an evaluation result of a hitting motion.

FIG. 11 is a display example of a temporal change in the load of the entire body.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 swing table 4 display means C club M feature point detection means S load measurement means T evaluation means U control means

Claims (3)

(57) [Claims] 1. A swing table (1) on which a subject who performs a ball-hitting operation while holding a hitting tool (C) is mounted, and a load measuring means (S) for measuring a load or a load center of the whole body of the subject or each of right and left feet. And a control means (U) for storing measurement data of the load measuring means (S) in the hitting operation and displaying the stored measurement data on a display means (4). , Feature point detection to detect multiple feature points during hitting motion
Means (M) and the feature points detected by the feature point detecting means (M).
Between the two-dimensional plane of the center of load of the entire body of the subject
The position of the subject is compared with the reference data for comparison,
Evaluation means (T) for evaluating the hitting action of the player, and the control means (U) displays the evaluation result of the evaluation means (T) on the display means (4).
A ball-motion exercise machine configured to be displayed on the display . 2. The hitting motion training machine according to claim 1, wherein the evaluation means (T) is configured to evaluate a hitting motion of the subject for each of a back swing, a down swing, and a follow swing. 3. The hitting ball operation according to claim 1, wherein the control means (U) displays the evaluation result of the evaluation means (T) as a comment on the display means (4). Practice machine.