JPH0796057A - Swinging movement exercising machine - Google Patents

Abstract

PURPOSE:To provide the swinging movement exercising machine which can outputs swinging movement data even in the case of exercising a practice without ball. CONSTITUTION:This machine is provided with a movement data detecting means M for detecting the movement data of a person to be tested as time sequential data, data extracting means N for extracting data during a term from a time point corresponding to ball hitting to a time before a set time and those from the time point corresponding to ball hitting to a time after the lapse of a set time as the swinging operation data among the data detected by the movement data detecting means M, output means 4 for outputting the swinging operation data extracted by the data extracting means N, and manual operation type commanding means 36b for commanding the time point corresponding to ball hitting. Then, the swinging movement exercising machine is constituted so that the data extracting means N extracts the swinging movement data with the time point commanded by the commanding means 36b as the time point corresponding to ball hitting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to motion data detecting means for detecting motion data of a subject as time-series data, and among data detected by the motion data detecting means, from a time point equivalent to a hit ball to a set time. And the data from the time point corresponding to the hitting ball to the elapse of a set time as hitting ball movement data, and an output means for outputting the hitting ball movement data extracted by the data extracting means. Regarding a ball hitting exercise machine.

[0002]

2. Description of the Related Art The above-described ball-hit motion practice machine outputs the ball-hit motion data to an output means such as a monitor in the ball-hit motion practice of golf, baseball, etc., so that it can be judged whether or not the ball-hit motion is appropriate. It is the one. Examples of the motion data detecting means include one using a load measuring stand for detecting the load center of the entire body of the subject or each of the left and right feet, and one using a video camera for capturing the image of the subject.

By the way, since the data extracting means extracts the hitting movement data from the data detected by the movement data detecting means on the basis of the time point corresponding to the hitting ball, in order to extract the hitting movement data. Needs to instruct the data extraction means at a time point equivalent to a hit ball. Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 4-174683, a ball presence / absence detecting means for detecting the presence / absence of a ball hit by a hitting tool such as a club held by a subject is provided, and the ball presence / absence detecting means is a ball. The time point at which the change from the existence state to the ball non-existence state is detected is set as the hitting ball equivalent time point.

[0004]

In the practice of hitting a ball, in addition to the practice of actually hitting a ball, practice by swinging is also effective. And when practicing with this swing,
It is desired that ball hitting motion data be output. However, conventionally, only in the practice of actually hitting a ball, the time corresponding to the hit ball is obtained by the information of the ball presence / absence detection means,
Since it outputs the ball hitting motion data, it cannot be effectively used for practice by swinging.

The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide a hitting ball practice machine that can be effectively used even when practicing by swinging.

[0006]

A ball hitting practice machine of the present invention comprises a motion data detecting means for detecting motion data of a subject as time series data, and a ball hitting out of the data detected by the motion data detecting means. Data extracting means for extracting the data from a corresponding time point to a set time before and the data from the time point corresponding to the hitting time to the elapse of the set time as hitting ball movement data, and the hitting ball movement data extracted by the data extracting means. Output means is provided, and the first characteristic configuration thereof is a manually operated command means for commanding the time point equivalent to the hit ball, and the data extraction means is commanded by the command means. The point is a point corresponding to a hit ball, and the hit ball movement data is extracted.

The second characteristic configuration specifies a preferable configuration for carrying out the first characteristic configuration, and a ball presence / absence detection means for detecting the presence / absence of a ball hit by a hitting tool held by the subject. The data extracting means is provided with a mode instruction means for instructing switching between an actual hitting operation mode in which the subject performs a hitting operation in the presence state of the ball and a natural swinging operation mode in which the subject performs a hitting operation in the absence state of the ball. When the swinging motion mode is instructed,
When the time point instructed by the command means is a time point equivalent to a hit ball, the hit ball operation data is extracted, and when the actual hit ball operation mode is instructed, the ball presence / absence detection means changes from the ball existence state to the ball non-existence state. The point is that the time point at which the change is detected is set as the time point corresponding to the hit ball, and the hit ball motion data is extracted. The third characteristic configuration specifies a preferable configuration for implementing the second characteristic configuration, and the mode instructing unit is configured to detect the presence of the sphere by the sphere presence / absence detecting unit. The ball striking operation mode is instructed, and the ball swinging operation mode is instructed when the ball existence / non-existence detecting means detects the ball non-existing state.

[0008]

According to the first characteristic configuration, when the subject performs a ball hitting motion, the instructor, the accompanying practitioner, or the like commands the ball hitting equivalent time point by the command means, and the time point when the data extracting means is commanded by the command means. The hitting ball movement data is extracted at the time corresponding to the hitting ball, and the extracted hitting ball movement data is output by the output means. in this way,
Since the command means commands the time corresponding to the hit ball,
Even in practicing practice, it is possible to output the ball hitting motion data by instructing the time corresponding to the ball hitting.

According to the second characteristic configuration, when the plucking motion mode is instructed, the ball hitting motion data can be output while the ball hitting motion data is extracted with the time point instructed by the commanding means as the ball hitting equivalent time. . Further, when the actual ball hitting operation mode is instructed, the ball hitting motion data is output while extracting the ball hitting motion data, with the time point when the ball presence detecting means detects the change from the ball existence state to the ball nonexistence state as the ball hitting equivalent time. can do. That is, in both the ball swinging motion mode and the actual ball hitting operation mode, it is possible to output the ball hitting motion data while instructing the time point equivalent to the ball hitting by the command means. If it is possible to identify the time equivalent to the ball hitting based on the detection information of the ball presence detection means, it is possible to output the ball hitting motion data even when there is no instructor or accompany practitioner. It is possible to output hitting ball movement data without giving a companion practitioner the trouble of operating the command means.

According to the third characteristic configuration, when the subject places a ball to be hit, the ball existence / non-existence detecting means detects the existence of the ball, and the above-mentioned actual hitting ball operation mode is set. When the presence state is detected, the swing motion mode is set. That is, the mode instructing means for switching between the actual hitting ball operation mode and the swinging motion mode can be constituted by a manually operated switch or the like. In this case, not only special operation for the mode instructing means but also the operation is performed. Due to forgetting or the like, for example, even though the ball is in the actual ball hitting operation mode, the process of identifying the hitting ball equivalent time point based on the detection information of the ball presence / absence detection means is not executed, and the ball hitting operation data is not output, which causes a trouble. However, such a disadvantage can be avoided.

[0011]

According to the first characteristic configuration, it is possible to provide a ball-hit motion practice machine that outputs ball-hit motion data even when practicing practicing a swing, and can perform a more good practice.

According to the second characteristic structure, in addition to the effect of the first characteristic structure, in practice of actually hitting a ball,
Even when there is no instructor or accompanying trainer, output the ball hitting motion data as desired, and even if there is an instructor or accompanying trainer, the ball hitting motion data is desired without causing any trouble to those people. Since it is possible to output as described above, it is possible to provide a ball hitting practice machine excellent in practical use.

According to the third characterizing structure, in addition to the effect of the second characterizing structure, the operability is improved by omitting the operation, and the trouble due to the operation mistake is avoided.
Since it is possible to output the ball-hit motion data as appropriate, it is possible to provide a ball-hit motion practice machine excellent in terms of operation.

[0014]

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,
Reference numeral 4 is a display device. In the golf training machine of the present embodiment, the processing device 3 processes the detection data of the load detection sensor D provided on the swing table 1 during a ball hitting operation for actually hitting the ball 24 or during a ball hitting operation of a swing. , Load center display device 4
In addition to the real time display, it is temporarily stored as time series data of the load or load center and is displayed after the swing ends.

Each device will be described below. Swing stand 1
Is the two load detection bases 10 and 1 corresponding to the left and right feet, respectively.
The load detection base 10 is composed of four load cells 12, 13, 14, 15 as the load detection sensor D.
The corners are supported, and the load detection base 11 is supported at the four corners by four load cells 16, 17, 18, and 19 serving as the load detection sensor D. On the swing table 1, a subject holding a club C as a ball hitting tool swings. At this time, the load applied to the swing base 1 is the eight load cells 1 supporting the two load detection bases 10 and 11.
2, 13, 14, 15, 16, 17, 18, and 19, and from these outputs, the load and the load center of the subject and the load centers corresponding to the left and right feet of the subject are described below. Desired.

The ball mounting table 2 is provided with a supporting member 25 on which the ball 24 is mounted when swinging is practiced at a wood club or the like. On the swing table 1 side of the supporting member 25, an iron club or the like is mounted. 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 when starting a new swing when the ball 24 is placed on the support 25 or the marker 70, and when the subject actually hits the ball 24. Detects the time point when the ball 24 on the support tool 25 or the marker 70 is struck by the club C and disappears from the support tool 25 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 25 and the marker 70 with the club head passage on the backswing side interposed therebetween. Both the ball detection sensor 21 and the club detection sensor 22 are configured by a transmissive optical sensor. These sensors are arranged such that the light emitting portion 21a of the ball detection sensor 21 is provided on the side of the club head passage opposite to the swing base 1.
And the light emitting portion 22a of the club detection sensor 22 are installed,
On the opposite side of the light emitting portions 21a and 22a across the club head passage, a light receiving portion 21b of the ball detecting sensor 21 and a light receiving portion 22b of the club detecting sensor 22 are respectively provided.
It is installed opposite to 22a.

The detection light emitted from the light emitting portion 21a of the sphere detection sensor 21 is projected toward the light receiving portion 21b located diagonally below, and the detection light is present in the support tool 25 and the sphere 24 above the marker 70. Whether or not the sphere 24 is placed on the support 25 and the sphere 24 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. Even when a ball is placed on top, it is possible to detect the passing of the club with certainty. The drive circuit for the ball detection sensor 21 and the club detection sensor 22 is built in the control box 26.

The processing unit 3 includes an arithmetic unit 31 for performing arithmetic processing for obtaining a load and a load center and sequence control of the apparatus, an I / O interface 32 for transferring various data, and load and load center measurement information. A storage device 33 to be stored, 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 a movement locus of a load center even when a subject makes a swing. Is composed of a swing switch 36 for instructing the display device 4 to display. Swing switch 3
6, a start switch 36a for instructing the start of data collection for display on the display device 4 and a companion of the subject, such as a swing practice instructor, observe the subject's swinging motion and make an impact. An impact switch 36b is provided as a manually-operated command means for instructing the impact point to the arithmetic unit 31 as a time point equivalent to a hit ball by pressing at an estimated time point. 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 the left and right feet respectively, and the plotter 4b has a two-dimensional locus of the load ratio of the whole body (change with time). ) Is displayed. Therefore, the display device 4 functions as an output unit that outputs the ball hitting motion data.

Next, a process in which the arithmetic unit 31 obtains a load and a load center 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 a width a in the X direction and a 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, in accordance with an instruction to create a footstep on the operator console 34, the arithmetic unit 31 determines, based on the load center data of the left and right feet for a set time from the instruction time point,
The foot shape f of the subject and the position of the foot shape f on the swing table 1 are detected, the foot shape f is displayed on the graphic display device 4a of the display device 4, and the measurement result (the whole body or the load center of each of the left and right feet is measured). ) As a dot mark (that is, as shown in FIGS. 9 and 10, the load center of the left and right feet is indicated by the mark 48, and the load center of the whole body is indicated by the mark 49. ) Is configured to display.

Creation of the foot shape f by the arithmetic unit 31 is as follows.
Of the load center data of the left and right feet during the set time from when the footstep creation is instructed, the position of the load center located closest to the toe side on the swing base 1 is extracted as the reference position P ₀ , and the reference is extracted. Based on the position P ₀ , the left and right foot shapes f are configured as described below.

Hereinafter, the reference position P₀Create foot form f based on
Figure 7 shows how to create a foot shape, taking the left foot as an example.
Reveal The vertical width AL of the foot is independent of the foot size of the subject.
Initial setting (about 300 mm), the foot shape f is an ellipse
Yen f₁(Larger ellipse) and f₂(The smaller ellipse) and
Is formed. Note that the ellipse f in this embodiment is₁of
The major axis is (AL x 4/5) and the minor axis is (AL x 2/5)
It is set and the ellipse f₂Major axis is (AL x 3/5)
In addition, the minor axis is set to (AL × 3/10). That
The reference position P₀Ellipse at (AL x 3/10)
Yen f₁Center point P of ₁And set the center point P₁Than (A
Ellipse f at L × 3/10)₂Center point P of₂The set
To do.

However, in this embodiment, the center point P ₂ is provided so as to be displaced inward by dx (about 10 mm) with respect to the center point P _1, but this is for making the foot shape f closer to the actual foot shape. Yes, there is no need to shift it. In addition, foot shape f
Is parallel to the longitudinal component Y of the load center,
It is set in advance.

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.

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 struck and lost, or from the time when the start switch 36a of the swing switch 36 is pressed to reset the device,
A storage area in which data until the time point when the impact switch 36b of the swing switch 36 is pressed and input as an impact point has a storage capacity corresponding to a time-series data amount of about 2 seconds in the storage device 33. Is stored endlessly by rewriting the oldest data to the latest data sequentially, and the data after the impact point is stored in another storage area having a storage capacity corresponding to a predetermined time width. . The predetermined time width corresponding to the storage area for storing the data after the impact point is 0 when the impact point is detected by the sphere detection sensor 21 and when the impact point is input from the swing switch 36. It is 5 seconds. Further, when 0.2 seconds has passed from the impact point, it is detected as the end point of the swing motion, that is, the finish point.

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. Therefore, the load detection sensor D and the calculation device 31 function as the motion data detection means M that detects the motion data of the subject as time series data, and the calculation device 31 and the storage device 33 are detected by the motion data detection means M. Among the data, the data extraction means N functions to extract the data from the impact point to the set time before and the data from the hit point to the set time in the case of golf practice as hitting motion data.

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 a swing start point which is one of characteristic points in a golf swing will be described. In the storage device 33, information on whether or not the club detection sensor 22 has detected the passage of the club head is stored in time series in addition to the above-described data on the load and the load center. 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, the 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.

Next, the operation of this device in use will be described based on the flowchart of FIG. 8 and the display examples of FIGS. 9 to 13. In the flowchart of FIG. 8, after the power switch (not shown) is turned on to activate the apparatus, the operator sets the operation mode of the apparatus from the console 34 (step # 1), and proceeds to step # 2. There are two modes, the proper range display mode and the proper range non-display mode, to be set here. When the proper range display mode is set, the backswing side display mode and the downswing side display mode are further displayed. Set one of the modes.

In the proper range display mode, the movement locus of the load center in the swing motion of an advanced player such as a professional golfer is statistically processed in advance to obtain a set proper movement locus considered to be an ideal movement locus of the load center, and the storage device 33 is obtained. The area having the set width in the state along the set proper movement locus is displayed as the proper range. As shown in FIG. 14, the above-mentioned set width is the set proper movement locus 2 in the set proper movement locus 200 of the load center of the whole body.
00 has a width wa in the front-back direction of the subject, and in the setting proper movement locus 201 of the load centers of the left and right feet, respectively, has a width wb in the left-right direction of the subject around the setting proper movement locus 201. The appropriate ranges are displayed in strips. The width wa is set to about 5% of the front-back length (30 cm) of the foot shape, and the width wb is set to about 6.7% of the maximum left-right width (12 cm) of the foot shape, depending on the skill level of the subject. The settings can be changed.

Further, when the proper range display mode is set and the backswing side display mode is set, the backswing side portion before the top position of the proper range is displayed on the graphic display device 4a. Then, when the downswing side display mode is set, the downswing side portion after the top position in the proper range is displayed on the graphic display device 4a. In the proper range non-display mode, the data in the proper range is not displayed, but only the display data regarding a new swing is displayed.

When the setting of the above operation mode is completed, it is determined in step # 2 whether or not the sphere 24 is placed on the support 25 or the marker 70 based on the detection information of the sphere detection sensor 21, If the sphere 24 is not on the support 25 or the marker 70, the detection data of the load detection sensor D is fetched (step # 11) and arithmetic processing is performed to determine the center of the load and the left and right feet corresponding to the entire body. The corresponding load center is obtained (step # 12), and it is determined whether or not the start switch 36a of the swing switch 36 is pushed (step # 13).

If the start switch 36a has not been pressed, it is judged whether or not footstep creation is instructed (step # 14). If there is no footstep creation instruction, as shown in the display example of FIG. The load center point 48 of the left and right feet and the load center point 49 of the entire body are actually displayed on the graphic display device 4a (displaying the state in which the outer periphery 50 of the swing base 1 is displayed), and further, the entire body of the load of the right foot is displayed. Of the load (WR / WT) is displayed as a load ratio display point 62 in a display field 61 provided at the lower end of the display screen of the graphic display device 4a (step # 14). This load ratio display point 6
In the display position of 2, the left end of the display column 61 is WR / WT = 0.
At the right end, WR / WT = 1, and proportional distribution is made between them. That is, if the load ratio of the left and right feet is 50:50, it is displayed in the center of the display column 61, and if it is 0: 100, the display column 6 is displayed.
1 is displayed on the right end, and conversely, if it is 100: 0, it is displayed on the left end of the display field 61.

In the display column 61, in addition to the load ratio display point 62 described above, a desirable value as the WR / WT value at the address point, the top position and the impact point is obtained in advance, and the address load ratio display 42 , Top load ratio display 43
And the impact load ratio display 44. The lateral widths of the address load ratio display 42, the top load ratio display 43, and the impact load ratio display 44 are about 0.1 in terms of WR / WT values, but the settings can be changed.

If footstep creation is instructed (step # 1)
4) Then, the foot shape f is detected based on the load center data of the left and right feet during a set time (about 50 mS in this embodiment) from that point, and the foot shape f is displayed in an enlarged display.
However, when the footstep f is displayed, if the operation mode is set to the proper range display mode (step # 16), FIG.
0 and FIG. 11, the proper range 40 of the left and right feet and the proper range 41 of the whole body are displayed in accordance with the position of the foot f (step # 17). The proper range 40 of the left and right feet and the proper range 41 of the whole body and the detected foot form f are aligned with each other by the positions of the left and right foot forms when the respective proper ranges 40 and 41 are obtained and the detected right and left foot forms f. So that the positions match
The display of each proper range 40, 41 is adjusted by enlarging or reducing it.

The display shown in FIG. 10 shows the case where the backswing side display mode is set.
The display shown in 1 indicates the case where the downswing side display mode is set. If the operation mode is set to the proper range non-display mode (step # 15), the proper range and the like are not displayed (step # 18). After performing the above screen control, it is judged whether or not the operation mode change switch of the console 34 is pressed (step # 1.
9) 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 # 2. Note that the footstep creation instruction is configured so that a companion (or an instructor or the like) operates the console 34.

In the state of branching from step # 2 to step # 11 and returning from step # 19 to step # 2 again, the real time display mode is displayed in which the load centers of the entire body and the left and right feet are displayed in real time. .

In step # 2, 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 proper range 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 # 3). After that, the detection data of the load detection sensor D is fetched (step # 4), 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 stored in the storage device 33 by calculation processing, 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 load ratio display point 62 (step # 5 and # 6).

After this screen control, it is judged whether or not the swing has already ended by whether or not a predetermined time has elapsed from the impact point (step # 7), and if the predetermined time has not elapsed, step # Return to position 4. When it is determined that the swing has already ended after a predetermined time has passed from the impact point, as shown in FIG. 12, the movement locus 51 of the load center of the entire body and the left and right feet of the completed swing, as shown in FIG. The movement locus 52 of the load center corresponding to is displayed, and the characteristic points (address point, body turn start point,
Marks 53 to 58 indicating the top position, the swing-down point, the impact point, and the finish point are displayed (step # 8).

Note that FIG. 12 also shows a display example when the proper range display mode and the downswing side display mode are selected, as in FIG.
In the display of FIG. 12, unlike the case of the real-time display mode of FIGS. 10 and 11, not the entire display of the swing base 1 but the foot f and the existing portion of the load center display data are enlarged and displayed. And further, as shown in FIG.
Data 63 of the time change of the load ratio of the whole body is plotted on the plotter 4b.
(Step # 8). Then, on the display of the data 63 of the time change of the load ratio of the whole body, each characteristic point (body turn start point, top position, swing-down point,
Mark 54 indicating impact point and finish point)
~ 58 is displayed.

Further, the display of the load center on the graphic display device 4a shows the data from the swing start point to the finish point, and the data 63, 64 of the time change of the load ratio on the plotter 4b shows the impact point. It is configured to display the data of a predetermined time before and after each. As described above, when the ball detection sensor 21 detects the presence of a ball, the actual ball hitting operation mode in which the subject actually hits the ball 24 is entered.

After that, if the measured load and load center data are not saved, the process returns to the position (step # 2) for detecting the presence or absence of the sphere 24, and if saved, the storage device 3 is used.
After transferring the measurement data to the data storage area of step 3 (steps # 9 and # 10), the procedure returns to the position of step # 2.

In the state of branching from step # 2 to step # 3 and returning to step # 2 again, the two-dimensional locus display mode is displayed in which the position change of the load center of the subject is displayed as a two-dimensional locus. In addition to the two-dimensional trajectory display mode, not only when the sphere detection sensor 21 detects the presence of the sphere 24, but also in the real-time display mode,
Even when the start switch 36a of the swing switch 36 is pressed, the process proceeds by branching from step # 13 to step # 3. When the start switch 36a shifts to the two-dimensional trajectory display mode, the companion inputs the impact point by pushing the impact switch 36b as described above. In other words, even when the subject makes a swing, the hitting movement mode in which the hitting movement data during the swing is output from the display device 4 is set. Therefore, the arithmetic unit 31 and the start switch 36a of the swinging switch 36 function as mode instructing means T for instructing switching between the actual hitting ball operation mode and the swinging motion mode.

[Other Examples] Other examples will be listed below. (1) In the above embodiment, the configuration in which the load of the subject is measured as the action data detection unit M is illustrated, but the action detection unit M is configured using a video camera that images the subject, and the hitting action of the subject is imaged. The imaged data may be treated as hitting motion data. Further, various operation data detecting means M, such as combined use of load measurement and a video camera, can be applied.

(2) In the above embodiment, the case where the present invention is applied to the practice of golf is illustrated, but the present invention can be applied to various motion exercises such as baseball.

(3) In the above embodiment, the mode instructing means T for instructing the switching between the actual hitting ball operation mode and the swing motion mode is composed of the arithmetic unit 31 and the start switch 36a. Detecting whether or not the ball 24 is placed on the ball 70, that is, the ball presence / absence detecting means 21
It may be configured such that switching between the actual hitting ball operation mode and the swinging motion mode can be instructed only by detecting the presence or absence of No. 4. With such a configuration, in the flowchart shown in FIG. 8, even if it is determined in step # 2 that there is no ball, the process proceeds to step # 3. The method of inputting the impact point is different between the case where the ball is present and the procedure proceeds to step # 3 and the case where the ball is not present, and one is that the ball presence / absence detection means 21 loses the ball 24 from the support 25. Is detected, and the other is when the impact switch 36b of the swing switch 36 is pushed.
Therefore, in this case, the arithmetic unit 31 functions as the mode instruction means T.

(4) Besides, various changes can be made to the specific configurations of the respective parts necessary for carrying out the present invention.

It should be noted that reference numerals are given in the claims to make the objects of the drawings convenient, but the present invention is not limited to the structures of the attached 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 diagram illustrating creation of a foot print.

FIG. 8 is a flowchart according to an embodiment to which the present invention is applied.

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

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

FIG. 11 is a display example according to an embodiment of the present invention.

FIG. 12 is a display example according to an embodiment of the present invention.

FIG. 13 is a display example according to an embodiment of the present invention.

FIG. 14 is an explanatory view showing a proper range of a load center according to an embodiment of the present invention.

[Explanation of symbols]

 4 Output Means 21 Ball Presence / Absence Detection Means 24 Balls 36b Command Means C Hitting Tool M Motion Data Detection Means N Data Extraction Means T Mode Support Means

Claims (3)

[Claims] 1. A motion data detecting means (M) for detecting motion data of a subject as time-series data and data detected by the motion data detecting means (M) from a time point equivalent to a hit ball to a set time before. Data and a data extracting means (N) for extracting the data from the time corresponding to the hitting ball to the elapse of a set time as hitting ball movement data, and an output for outputting the hitting ball movement data extracted by the data extracting means (N) A hitting ball practice machine provided with means (4), which is a manually operated commanding means (3) for instructing a time point corresponding to the hitting ball.
6b) is provided, and the data extraction means (N) is the command means (36b).
A ball-hit motion training machine configured to extract the ball-hit motion data with the time commanded in step 1 as the time equivalent to a ball hit. 2. A ball presence / absence detecting means (21) for detecting the presence / absence of a ball (24) hit by a hitting tool (C) held by a subject.
And a mode instructing means for instructing switching between an actual hitting ball operation mode in which the subject makes a ball hitting motion in the presence state of the ball (24) and a swinging motion mode in which the subject makes a ball hitting motion in the absence state of the ball (24) ( T) is provided, and the data extracting means (N) extracts the ball hitting movement data when the time point instructed by the command means (36b) is regarded as a time point equivalent to the hitting ball when the natural swing motion mode is instructed. When the actual hitting ball operation mode is instructed, the hitting ball movement data is extracted with the time point when the ball existence detecting means (21) detects the change from the ball existence state to the ball non-existence state as the hitting ball equivalent time point. The hitting ball training machine according to claim 1, which is configured as follows. 3. The mode instructing means (T), when the sphere presence / absence detecting means (21) detects the sphere presence state,
3. The actual ball striking operation mode is instructed, and the ball swinging operation mode is instructed when the ball existence / non-existence detecting means (21) detects the ball non-existing state.
The described ball-hit action training machine.