JPH078590A - Driving motion-practicing machine - Google Patents

Abstract

PURPOSE:To provide a driving motion-practicing machine for conducting a practice while successively judging whether the load center of the whole body or the left and right feet is precisely moved or not, wherein the display of the movement of the load center of the whole body or left and right feet is made easy to see, and the practice can be easily performed. CONSTITUTION:In a driving motion-practicing machine having a swing base 1 for putting a testee conducting driving motion; a load measuring means for measuring the load center of the whole body or each load center of the left and right feet on the swing base 1; and a control means for displaying the measurement result of the measuring means within the display range of a display means 4 in the state where it is shown as a dot mark, and also conformed to a position in the plane view of the swing base 1, the control means 31 is constituted in such a manner that the testee present range in which the load center appears according to the driving motion on the swing base 1 is determined on the basis of the measurement result of the measuring means, and the measurement result is displayed in the state where the testee present range is conformed to the display range of the display means 4.

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 holds a ball hitting tool and hits is placed, and a load measuring means for measuring the load center of the entire body or each of the left and right feet on the swing table, A hitting ball provided with a control means for displaying the measurement result of the measurement means in a display range of the display means in a state of being represented as a dot-like mark and in a state of being associated with the position of the swing table in plan view. Regarding exercise training machine.

[0002]

2. Description of the Related Art Such a ball-hit motion practice machine is used, for example, for practicing ball-hit motions such as golf and batting. In these ball-hit motions, the movement of the center of gravity associated with the ball-hit motion is correct. It is known that whether or not it is performed is an important index for forming a correct hit ball form. So, in such a batting motion training machine,
Conventionally, the presence range of the swing table (that is, the outer circumference of the swing table in plan view) is displayed on the display means,
Within the existence range of the swing table, the measured load center of the whole body of the subject or each of the left and right feet is indicated by a dot mark.
The swing table is displayed in real time on the display unit in association with the position in plan view of the swing table.

[0003]

Therefore, in such a ball hitting practice machine, when it is desired to practice while confirming the position of the whole body or the center of load of the left and right feet in the ball hitting motion in real time, for example, the whole body at the top position. Or, the ideal load center of each of the left and right feet is displayed in advance, and the subject stands still at the top position while performing a swinging motion, and the load center of the entire body at that time or the left and right feet and the ideal top position. If you try to practice while comparing the position of the load center with the position of the load center and sequentially judging whether the load center moves correctly at the top position, when you try to practice, compared with the range of the swing table, the subject range (that is, , The moving range of the load center of the entire body of the subject or each of the left and right feet is inevitably narrow, so in the above conventional display, the load center of the whole body or the load center of each of the left and right feet is reduced. , Will be moved a narrow range of the display range of the display means, the display is disadvantageously hard to see. The present invention has been made in view of the above circumstances, and an object thereof is to practice while practicing while sequentially judging whether the movement of the load center of the entire body or the left and right feet is correctly performed. Another object of the present invention is to provide a batting motion training machine in which it is easy to practice by making it easy to see the display of the movement of the load center of the left and right feet.

[0004]

A ball hitting practice machine of the present invention measures a swing table on which a subject who holds a ball hitting tool and hits a ball is placed, and the center of load of the entire body or each of the left and right feet on the swing table. Control for displaying in the display range of the display means the load measuring means and the measurement result of the measuring means in a state represented as a dot mark and in a state associated with the position of the swing table in plan view. Means is provided, the first characteristic configuration, the control means, based on the measurement result of the measuring means, the subject existence range in which the load center appears along with a ball hitting motion on the swing table. Is obtained, and the measurement result is displayed in a state in which the subject existing range is made to correspond to the display range of the display means. The second characteristic configuration is provided with command means for instructing the control means to perform an enlarged display mode and an actual display mode, and the control means includes:
When the enlarged display mode is instructed, a display operation for displaying the measurement result is executed in a state where the subject existing range corresponds to the display range of the display means, and the actual display mode is executed. In this case, the display operation for displaying the measurement result is executed in a state where the existing range of the swing table corresponds to the display range of the display means. A third characteristic configuration is that the control unit is configured to display target information about a load center in a ball striking motion on the display unit in addition to the measurement result.

[0005]

According to the first characteristic configuration of the present invention, the moving range, that is, the subject existing range on the swing table about the load center of the entire body or the left and right feet in the ball striking motion is detected based on the measurement result of the measuring means. The load center of the entire body or each of the left and right feet is displayed on the display unit so that the subject existence range corresponds to the display range of the display unit. That is, the movement of the load center of the entire body or each of the left and right feet is enlarged and displayed so as to be displayed over the entire or almost the entire display range of the display means. Therefore, for example, when it is desired to practice only by seeing only the movement of the load center of the right foot, the existing range (that is, the moving range) of the load center of the right foot is enlarged and displayed over the entire display range of the display means or almost the entire display range. According to the second characteristic configuration, when the actual display mode is instructed, the load center of the entire body or the left and right feet of the swing table is set so that the existing range of the swing table corresponds to the display range of the display means (that is, The outer periphery of the swing table in plan view corresponds to the entire display area of the display means or almost the entire display area, and when the enlarged display mode is commanded, the existence range of the load center corresponds to the display range of the display means. It is enlarged and displayed. Therefore, when you want to know where on the swing platform the load center of the entire body or each of the left and right feet is, command the actual display mode to display it.
When you want to know the movement state (movement position) of the load center of the whole body or each of the left and right feet in detail, you can switch the actual display mode and the enlarged display mode according to the request of the subject, such as commanding and displaying in the enlarged display mode. It can be selected and displayed. According to the third characteristic configuration, the load center of the entire body or the left and right feet on the swing table and the target information of the load center in the ball striking motion are simultaneously displayed, so that the target information (target position) of the load center is displayed. for,
It is possible to practice hitting motion by observing the position of the load center of the subject. That is, for example, the target position as the ideal position of the load center of the whole body at the top position is displayed in advance, and the subject stands still at the top position while performing the swing motion, and the load center of the whole body at that time is displayed. By comparing the position and the target position of the load center of the whole body at the top position, it is possible to practice while judging whether or not the load center at the top position is correctly moved.

[0006]

According to the first characteristic configuration, when practicing while sequentially judging whether or not the load center of the whole body or the left and right feet is moved correctly, the whole body or the left and right feet on the swing table can be practiced. The presence range of each load center is enlarged and displayed so as to correspond to the display range of the display means, so that the movement of the load center of the whole body or the left and right feet can be easily seen, thus providing a ball striking practice machine that is easy to practice. It came to be possible. According to the second characteristic configuration, the actual display mode and the enlarged display mode can be selected and displayed according to the request of the subject, so that it is possible to provide a more convenient ball hitting practice machine. According to the third characteristic configuration,
With respect to the target information of the load center, it is possible to practice the ball hitting motion by looking at the position of the position of the load center of the subject, and thus it is possible to provide a more convenient ball hitting practice machine. I can do it.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment in which the present invention is applied to a golf practice machine will be described below with reference to the drawings. 1 to 3,
1 is a swing table, 2 is a ball mounting table, 3 is a processing device, and 4 is a display device as a display means. During the swing, the golf training machine of the present embodiment processes the detection data of the load detection sensor D provided on the swing base 1 by the processing device 3 to display the load center on the display device in real time, and The time-series data centered on the load is temporarily stored and displayed after the swing is completed. Hereinafter, each device will be described.

The swing base 1 comprises two load detection bases 10 and 11 corresponding to the left and right feet respectively.
Is the four load cells 12, 1 as the load detection sensor D
The four corners are supported by 3, 14, and 15, and the load detection base 11 is supported by the four load cells 16, 17, 18, and 19 as the load detection sensor D at the four corners. On the swing table 1, the subject holding the club C swings. At this time, the load applied to the swing base 1 is the eight load cells 12, 13, 14, 15, 16, 17, 18, 1 supporting the two load detection bases 10, 11.
The load and the load center of the subject and the load centers corresponding to the left and right feet of the subject are obtained from these outputs as will be described later.

A support tool 25 for mounting the ball 24 when performing a swing practice with a wood club or the like is mounted on the ball mounting table 2, and the swing tool 1 side of the support tool 25 has an iron club or the like. A marker 70 indicating the position where the ball is directly placed on the ball placing table 2 when the swing is practiced is drawn. Then, a ball detection sensor 21 as a ball presence / absence detecting means for detecting the presence / absence of the ball 24 is provided on both sides of the support tool 25 and the marker 70 sandwiching the club head passage. The ball detection sensor 21 functions as a reset switch for starting a new swing when the ball 24 is placed on the support tool 25 or the marker 70, and also on the support tool 25 or the marker 7.
The time when the ball 24 on 0 is hit by the club C and disappears from the support 25 is detected as an impact point which is one of the characteristic points in the golf swing. A club detection sensor 22 for detecting the movement of the club C to the backswing side is provided on both sides of the support tool 25 and the marker 70 on both sides of the club head passage on the backswing side.

Sphere detection sensor 21 and club detection sensor 2
Each of 2 is composed of a transmissive optical sensor. As for the arrangement of these sensors, the light emitting portion 21a of the ball detection sensor 21 and the light emitting portion 22a of the club detection sensor 22 are installed on the side of the club head passage opposite to the swing base 1, and the club heads of these light emitting portions 21a, 22a are arranged. A light receiving portion 21b of the ball detection sensor 21 and a light receiving portion 22b of the club detection sensor 22 are installed opposite to each other across the passage, facing the respective light emitting portions 21a, 22a. The detection light emitted from the light emitting portion 21a of the sphere detection sensor 21 is located on the light receiving portion 21 diagonally below.
Although it is projected toward b, this detection light passes through the region where the sphere 24 above the support tool 25 and the marker 70 should exist, and when the sphere 24 is placed on the support tool 25,
Even when the sphere is placed on the marker 70, the presence or absence of the sphere 24 can be similarly detected. The projection path of the detection light of the club detection sensor 22 is set to be substantially parallel to the projection path of the detection light of the sphere detection sensor 21, and even when the sphere 24 is placed on the support tool 25, the marker 70 is used. If you put a ball on top,
The passage of the club can be detected without fail.
The drive circuit for the ball detection sensor 21 and the club detection sensor 22 is built in the control box 26.

The processing device 3 includes a calculation device 31 for performing a calculation process for obtaining a load and a load center and a sequence control of the device, an I / O interface 32 for transferring various data, and a load and a load center measurement information. It comprises a storage device 33 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 is composed of a graphic display device 4a and a plotter 4b. The graphic display device 4a has a two-dimensional locus of the load center of the whole body and left and right feet, and the plotter 4b has a two-dimensional locus of the load ratio of the whole body. (Time change) is displayed.

Next, the process of calculating the load and the load center by the arithmetic unit 31 will be described. The test subject who holds the club C stands in a substantially center position on the swing table 1 while standing with the left and right feet on the two load detection tables 10 and 11, respectively. Taking the load detection table 10 on which the subject places his left foot as an example, the outputs of the load cells 12, 13, 14, 15 at the four corners of the load detection table 10 are adjusted in advance by zero adjustment in the load converter 100. Since the loads are canceled out, the total WL of the outputs W1, W2, W3, W4 becomes the load of the left foot of the subject on the load detection table 10. That is, WL = W1 + W2 + W3 + W4 Furthermore, at this time, since the shared output of each load cell differs depending on the relationship between the position where the load is applied and the installation position of the four load cells 12 to 15, the load applied to the load detection base 10 from these outputs. You can seek the center.

That is, regarding the left-right direction component X and the front-back direction component Y of the load center expressed with the load cell 12 in FIG. 1 as the origin, the four load cells 12 to 15 have the width a in the X direction and the width in the Y direction. In the case of being arranged at the four corners of the rectangular load detection base 10 of b, it can be obtained from X = (W2 + W3) × a / WL Y = (W3 + W4) × b / WL. In addition, the load cells 12, 13,
Even when the arrangements of 14 and 15 are not at the four corners of the rectangle, the load center can be obtained by performing the correction unique to the geometrical arrangement of the load cells. Further, if three or more load cells are provided, the center of load applied to the swing table 1 can be obtained. The load detection base 11 on which the subject places his right foot is also configured the same as the load measuring device 10, and the load center of the load applied to the load detection base 11 can be obtained in the same manner as above. That is, the load centers corresponding to the left and right feet of the subject can be obtained.

As for the load and center of load of both legs of the subject, that is, the whole body, the load applied to the load detection base 11 is W.
If it is R, as in the case of the left foot above, the load cell 16
From the outputs W5 to W8 of ~ 19, WR = W5 + W6 + W7 + W8 The overall load WT is obtained by WT = WL + WR, and the load center is the distance between the load center corresponding to the left foot and the load center corresponding to the right foot of the subject. If it is L, it is located at a position WR × L / WT away from the load center corresponding to the left foot on the line segment connecting the left and right load centers, and this can be calculated.

As shown in FIG. 3, eight load cells 12 ...
Outputs W1 to W4 and W5 to W8 of 15 and 16 to 19
Is a load converter 100 equipped with a measurement bridge circuit and an A / D converter, and after compensating for the weight of the swing table 1 as described above, it is sampled at regular intervals and becomes a digital quantity. Then, it is sequentially loaded into the processing device 3 via the I / O interface 32. The load WT of the subject, the load center, and the load centers corresponding to the left and right feet are calculated by the arithmetic unit 31 in the processing device 3 according to the above-described formula.

Then, the arithmetic unit 31 represents the obtained load centers corresponding to the whole body of the subject and each of the left and right feet as dot marks (that is, as shown in FIGS. 8 and 9). The load center of the left and right feet is represented by the mark 48,
The load center of the whole body is represented by the mark 49), and in a state of being associated with the position of the swing base 1 in plan view,
Although it is configured to display in real time on the graphic display device 4a of the display device 4, when the real display mode is executed, the existing range of the swing base 1 is made to correspond to the display range of the graphic display device 4a. In the state, that is, FIG.
As shown in, the measurement result (corresponding to the load center 48 corresponding to each of the left and right feet and the entire body) is displayed with the outer periphery 50 of the swing table 1 in plan view being displayed over almost the entire display range of the graphic display device 4a. Load center 4
9) is displayed, and when the enlarged display mode is instructed, based on the measurement result, the range of subject existence in which the load center appears on the swing table 1 with the ball hitting motion (that is,
In the present embodiment, the width in the X direction of the load center of the left and right feet is calculated, and the subject existing range is made to correspond to the display range of the graphic display device 4a, that is, as shown in FIG. The measurement result is displayed in a state where the width of the load center 48 of the foot in the X direction is enlarged so as to be displayed over almost the entire display range of the graphic display device 4a.

When the display (actual display mode) shown in FIG. 8 is enlarged and displayed in the display (enlarged display mode) shown in FIG. 9, in this embodiment, equal set magnifications (V '/ V' / Y ') are set in the X and Y directions. V), and the center of the load center of the left and right feet is the center position 8 of the display range of the graphic display device 4a.
It is displayed so as to be located at 0. Therefore, the address width at the time of enlargement is always set and displayed at V '. still,
In the figure, V indicates the address width in the actual display mode, and V'indicates the address width in the enlarged display mode.

Further, the arithmetic unit 31 is configured to display the target information of the load center in the ball striking motion on the graphic display unit 4a in addition to the above measurement results (the load centers corresponding to the whole body and the left and right feet respectively). Has been done. That is,
As shown in FIGS. 8 and 9, the load center 48 corresponding to each of the left and right feet and the load center 49 corresponding to the entire body are displayed, and the reference of the load center of each of the left and right feet is used as the target information of the load center. Locus 40, reference locus 4 of the load center of the whole body
1. Each characteristic point (address point 42,
Top position 44, impact point 46), each characteristic point on the reference trajectory 41 (address point 42, body turn start point 43, top position 44, swing-down point 45, impact point 46, finish point 47), and left and right feet The foot shape f corresponding to the reference locus 40 of each load center is displayed.

Further, the arithmetic unit 31 stores the time series data of the load, and the time series data of the load center corresponding to each of the left and right feet of the subject and the load center corresponding to the whole body of the subject in the storage unit 33. At the same time, the load corresponding to the entire body of the subject and each of the left and right feet is divided by the weight value of the subject to obtain the load ratio, and the time series data of these load ratios is stored in the storage device 33. The weight value of the subject is obtained by averaging the weight values of the entire body of the subject before the start of the swing.

Therefore, the arithmetic unit 31 functions as a load measuring unit M for measuring the load center of the entire body or the left and right feet of the swing base 1, and also as a control unit for controlling the display of the display unit 4. .

The time-series data is stored by the sphere detection sensor 21 from the time when the sphere detection sensor 21 detects that the sphere 24 is placed on the support 25 or the marker 70 and resets the device. The data up to the impact point for detecting that the ball 24 on the tool 25 or the marker 70 has been hit and lost is sequentially updated to the oldest data in the storage area of the storage device 33 having an appropriate storage capacity. The data is stored endlessly so that the data after the impact point is stored in another storage area having a storage capacity corresponding to a predetermined time width.

Together with these time series data, the load center and the left and right feet of the entire body and the left and right feet at each characteristic point (address point, body turn start point, top position, swing-down point, impact point, finish point). The respective load ratios are also stored in the storage device 33. The load centers at the address points are obtained by averaging the positions of the load centers before the swing start point detected as described later.

Next, a process in which the club detection sensor 22 and the arithmetic unit 31 detect the swing start point which is one of the characteristic points in the golf swing will be described. In the storage device 33, together with the above-mentioned load and load center data,
Information on whether or not the club detection sensor 22 has detected the passage of the club head is also stored in time series. Based on this stored information, the arithmetic unit 31 excludes the time of about 100 mS immediately before the impact point and sets the time when the first club detection sensor 22 detects the passage of the club head as the swing start point by tracing back the time from the impact point. To detect.

Next, a process in which the arithmetic unit 31 detects a body turn start point which is one of characteristic points in a golf swing will be described. Of the load and load center data obtained by the computing device 31 as described above and stored in the storage device 33, the time change of the load on the lower leg of the subject in the backswing direction shown in FIG. 4, that is, the present embodiment. Since the device configuration for a right-handed test subject is illustrated by way of example, when the load on the right foot changes with time, the search starts from the data corresponding to the swing start point indicated by point A in FIG. The position of B on the time axis is detected as the body turn start point.

Next, a process in which the arithmetic unit 31 detects the top position which is one of the characteristic points in the golf swing will be described. The component in the left-right direction, that is, the X direction, of the load-series time series data corresponding to the entire body of the subject, which is obtained by the arithmetic unit 31 as described above and stored in the storage device 33, is time-differentiated to obtain the load-center X-value. The time change of the moving speed in the direction is calculated. In the time change of the moving speed in the X direction illustrated in FIG. 5, the point F, which is traced back for a predetermined time from the data of the impact point detected by the sphere detection sensor 21 indicated by the point E in FIG. Point F indicating the reference point
The data is searched backward in the direction from, and the sign of the moving speed in the X direction first reverses from negative to positive, that is, the point G at which the direction of the moving speed in the X direction first reverses is set as the top position. To detect. The time interval from the point E indicating the impact point to the point F, which is the reference time point, is set as a top position because the direction of the moving speed may be in the backswing direction immediately before the impact point. In order to prevent detection, this time interval is preferably about 200 mS.

Next, a process in which the arithmetic unit 31 detects a swing-down point which is one of characteristic points in a golf swing will be described. Among the data obtained by the arithmetic unit 31 as described above and stored in the storage unit 33, the point indicating the top position obtained 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. From H,
Up to a point I indicating the impact point detected by the ball detection sensor 21 corresponds to the downswing. During this downswing, within the time t from the point J, which indicates the time when the load on the left and right feet of the subject becomes equal, to the side where time elapses and t ′ to the side that goes back time, the foot on the upper hand side in the downswing direction. The rate of change of the load on the right foot, that is, the time differential value is calculated. It is suitable that both the time widths t and t'are about 50 mS. The point K indicating the time point when the absolute value of the change rate of the time change 90 of the right foot load becomes the minimum value is detected as the swing-down point.

Incidentally, 0.2 seconds after the impact point detected by the ball detection sensor 21 is detected as a finish point which is one of the characteristic points in the golf swing.

Next, the operation of the device in use will be described with reference to the flowchart of FIG. 7 and the display examples of FIGS. 8 to 11. In the flowchart of FIG. 8, after the power switch (not shown) is turned on to activate the device, the operator sets the operation mode of the device from the console 34 (step # 1). There are two operation modes, a reference trajectory display mode and a reference trajectory non-display mode. In the reference trajectory display mode, the time series data of the load center and the load ratio for comparison (ideal swing) stored in advance in the external storage device 35 is used as reference trajectory data, and the two-dimensional load center of the reference trajectory is used. Locus (movement locus)
Is displayed on the graphic display device 4a together with the display data of the load center relating to the new swing, and the two-dimensional trajectory (time change) of the load ratio of the reference trajectory is also displayed together with the two-dimensional trajectory of the load ratio relating to the new swing (time change). It is displayed on the plotter 4b. In the reference trajectory non-display mode, the data of the reference trajectory is not displayed, but only the display data regarding a new swing is displayed.

When either one of these two modes is selected to complete the setting of the operation mode, it is determined in step # 2 whether the operation mode is set to the reference locus display mode. If the operation mode is set to the reference trajectory non-display mode, the process proceeds to step # 5 without doing anything. If the operation mode is set to the reference trajectory display mode, the reference trajectory 40 of the left and right feet and the reference trajectory 41 of the whole body are put together. , Marks 42, 44, 46 indicating the respective feature points (address point, top position, and impact point) on the reference locus 40, and the respective feature points on the reference locus 41 (address point, body turn start point, top position, Marks 42 to 47 indicating a swing-down point, an impact point, and a finish point) and a foot shape f corresponding to the reference trajectory 40 are displayed on the graphic display device 4.
The image is displayed in a in the actual display mode (step # 4), and the process proceeds to step # 5.

In step # 5, the ball detection sensor 21
It is determined whether or not the sphere 24 is placed on the support tool 25 or the marker 70 based on the detection information of 1., and if the sphere 24 is not on the support tool 25 or the marker 70, the load corresponding to the entire body is obtained. The center of load and the center of load corresponding to each of the left and right feet are displayed in real time, and the process returns to step # 5.
That is, the detection data of the load detection sensor D is fetched (step # 14), the arithmetic processing is performed to obtain the load center corresponding to the entire body and the load centers corresponding to the left and right feet (step # 15), and the enlarged display is performed. If the mode is not commanded (step # 16), as shown in the display example of FIG. 8, the load center points 48 of the left and right feet and the load center points 49 of the entire body are respectively set to the actual display mode on the graphic display device 4a. Then, the ratio of the load on each of the left and right feet to the total load (that is, WL / WT and WR / WT) is calculated,
In the display columns 61 provided at the left and right ends of the display screen of the graphic display device 4a, the higher the ratio value, the higher the ratio display point 62 is displayed (step # 17).

If the enlargement display mode is instructed (step # 16), the display example of FIG. 8 is enlarged and displayed as shown in the display example of FIG. 9 (step # 18). After performing the above screen control, it is determined whether or not the operation mode change switch of the console 34 is pressed (step # 19). If it is pressed, the process returns to step # 1 and the operation mode can be set. If it is not pressed, the process returns to step # 5.
The command of the enlarged display mode is configured to be operated by operating the console 34, and the display examples of FIGS. 8 and 9 exemplify the case where the reference locus display mode is selected in step # 1. . Therefore, the console 34 functions as a command unit for commanding the arithmetic device 31 to the enlarged display mode and the actual display mode.

Therefore, when practicing while confirming the position of the load center at each feature point, for example, practice while still at the top position and confirming whether the load center position at that time is proper or not. If desired, in the state of the actual display mode in which the reference trajectory is displayed (FIG. 8), first, the position of the foot on the swing base 1 is set so that the load centers 48 of the left and right feet of the subject are within the foot shape f. To move. And the console 34
Is operated (operated by an operator different from the subject) to enter the enlarged display mode (FIG. 9), and the positions of the left and right feet are moved so that the load centers 48 of the left and right feet come to the address point 42. Takes address state. After that, start the swing motion, stop at the position of the desired feature point, and compare the load center at that time with the mark indicating the feature point on the reference locus to confirm whether the load center position is appropriate. Can be done.

In step # 5, the ball 24 is moved to the support 2
5 is placed on the marker 70 or the marker 70, the device is in a reset state, load data of a new swing is collected, the data is calculated, and the load center and the left and right feet corresponding to the whole body are collected. The collected data is stored in the storage device 3 while the load center etc. corresponding to each is displayed in real time.
Remember in 3. That is, the stored data such as the reference trajectory and the display on the graphic display device 4a are left as they are, and the stored data corresponding to the previous swing and the display on the graphic display device 4a are cleared (step # 6). Then, the detection data of the load detection sensor D is taken in (step # 7), and 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 left and right feet to the total load. Is calculated and stored in the storage device 33, and the calculation result is displayed on the graphic display device 4a as the load center point 48 of the left and right feet, the load center point 49 of the whole body, and the ratio display point 62 (step # 8 and # 9).

After this screen control, it is judged whether or not the swing has already ended by whether or not a predetermined time has passed from the impact point (step # 10), and if the predetermined time has not passed, step # Return to position 7. If it is determined that the swing has already ended after a predetermined time has passed from the impact point, as shown in FIG. 10, the movement locus 51 of the load center of the entire body and the left and right feet of the completed swing are shown in FIG. A movement locus 52 of the load center corresponding to is displayed, and on the movement locus 51 of the load center of the whole body, each characteristic point (address point, body turn start point, top position, swing-down point, impact point, and Marks 53 to 58 indicating the finish point) are displayed, and marks 53 and 55 indicating the characteristic points (address point, top position, and impact point) are displayed on the movement locus 52 of the load center corresponding to the left and right feet. , 57 are displayed (step # 1
1). Note that, similarly to FIG. 9, this FIG. 10 also shows a display example when the reference trajectory display mode is selected, and the display of the ratio display point 62 in the display column 61 indicates the state of the impact point. There is.

Further, as shown in FIG. 11, when the reference locus display mode is selected, the time variation data 63 of the load ratio of the entire body and the time variation data 64 of the reference locus data are selected. And are displayed on the plotter 4b so that the impact time points coincide with each other (step # 11). Then, on the display of the time change data 63 of the load ratio of the whole body, marks 54 to 58 indicating each characteristic point (body turn start point, top position, swing-down point, impact point, and finish point) are provided. Marks 43 to 47 indicating each characteristic point (body turn start point, top position, swinging down point, impact point, and finish point) are displayed on the display of the time variation data 64 of the load ratio of the reference trajectory data. Is displayed. When the reference locus non-display mode is selected, only the data 63 of the time change of the load ratio of the whole body is displayed on the plotter 4b. In addition, the load center is displayed on the graphic display device 4a by displaying the data from the swing start point to the finish point.
The display of the data 63, 64 of the time change of the load ratio at b is
It is configured to display data for a predetermined time before and after the impact point.

After that, when the measured load and load center data are not stored, the position returns to the position where the presence or absence of the sphere 24 is detected, and when stored, the measured data is transferred to the data storage area of the storage device 33 ( Steps # 12 and # 1
3) Return to the position of step # 5.

[Other Embodiments] Other embodiments of the present invention will be listed below. In the above-described embodiment, in the enlarged display mode, the movement locus of the load center of the entire body and the movement loci of the load centers of the left and right feet are enlarged and displayed on the graphic display device 4a. Only the moving locus of the load center of the entire body may be enlarged and displayed. Further, only between the characteristic points, for example, only between the address point and the top position may be enlarged and displayed. In the above embodiment, as the target information, the reference locus 40 of the load center of each of the left and right feet, the reference locus 41 of the load center of the entire body, and each characteristic point (address point 4) in the reference locus 40.
2, top position 44, impact point 46), reference locus 4
1 corresponds to each characteristic point (address point 42, body turn start point 43, top position 44, swing-down point 45, impact point 46, finish point 47), and reference locus 40 of the load center of each of the left and right feet. Although the foot shape f is displayed, the display combination of the target information can be changed variously. For example, the reference loci 40 and 41 may not be displayed, and only the load center indicating each feature point may be displayed. In the above embodiment, there are two load measuring tables,
Two or more may be used, or a load detecting base for measuring the load and the center of the load of the whole body is separately provided, and the load detecting bases 10 and 1 are provided.
You may arrange | position in 1 and 2 steps | paragraphs. In the above-described embodiment, the console 34 is operated to execute the command for the enlarged display mode, but after the operation mode is set, it may be automatically switched to the enlarged display mode after a predetermined time has elapsed. However, a console for executing the command of the enlarged display mode may be separately provided near the subject so that the subject can operate on the swing table 1.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

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

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

FIG. 3 is a block diagram of a golf training machine to which the present invention is applied.

FIG. 4 is a diagram showing detection of a body turn start point.

FIG. 5 is a diagram showing detection of a top position.

FIG. 6 is a diagram showing detection of a swing-down point.

FIG. 7 is a flowchart according to an embodiment to which the present invention is applied.

FIG. 8 is a display example in a real display mode according to an embodiment of the present invention.

FIG. 9 is a display example in an enlarged display mode according to an embodiment of the present invention.

FIG. 10 is a display example in an enlarged display mode according to an embodiment of the present invention.

FIG. 11 is a display example of a time change of a load ratio according to an embodiment to which the present invention is applied.

[Explanation of symbols]

 1 Swing Table 4 Display Means 31 Control Means 34 Command Means C Hitting Tool M Load Measuring Means

Claims (3)

[Claims] 1. A swing table (1) on which a subject who holds a ball hitting tool (C) and performs a ball hitting operation is placed, and a load measuring means for measuring the load center of the entire body or the left and right feet of the swing table (1). (M) and the measurement result of the measuring means (M) in a state of being represented as a dot-like mark, and in a state of being associated with the position of the swing table (1) in plan view, the display means (4). And a control means (31) for displaying within the display range of, the control means (31), based on the measurement result of the measuring means (M), the swing table ( In 1), the subject existence range in which the center of load appears along with the ball hitting motion is obtained, and the measurement result is displayed in a state in which the subject existence range corresponds to the display range of the display means (4). Hitting action習機. 2. A command means (34) for instructing the control means (31) to perform an enlarged display mode and an actual display mode is provided, and the control means (31) is provided when the enlarged display mode is instructed. Performs a display operation for displaying the measurement result in a state where the subject existence range corresponds to the display range of the display means (4), and when the actual display mode is executed, the swing table 2. The ball hitting exerciser according to claim 1, wherein the hitting operation training machine is configured to execute a display operation for displaying the measurement result in a state where the existence range of (1) corresponds to the display range of the display means (4). 3. The control means (31) is configured to display target information of a load center in a ball hitting motion on the display means (4) in addition to the measurement result. A ball hitting training machine.