JPH05269234A - Sport trainer - Google Patents

Abstract

PURPOSE:To provide a sport trainer which can display an easily visible load center with no program error even though a testee is in any condition. CONSTITUTION:A load center is calculated and displayed on a display unit 4 when the sum of detection data W1 to W4 from a plurality of load detecting sensors 12 to 15 provided on a bed 11 becomes larger a set value T for starting, and the calculation of the load center and the display of the display unit 4 are stopped when the sum becomes lower than a set value for stopping.

Description

Detailed Description of the Invention

[0001]

[Industrial application] A table on which a subject is placed and which includes a plurality of load detection sensors, and a load center applied to the table is calculated based on detection information from the load detection sensors, and the calculation result is calculated. The present invention relates to an exercise training machine provided with control means for displaying on a display device.

[0002]

2. Description of the Related Art Such an exercise training machine is used for practicing sports such as golf, swing for batting, skiing, and the like, which involves movement of the load center of the body. Conventionally, in an exercise trainer for displaying the load center of a subject, for example, as shown in FIG.
Based on the detection information W1 to W4 from 2 to 15, the load center (GX, GY) applied to the swing table is calculated by the following formula, and this load center is displayed on the display device. GX = (W2 + W3) × a / (W1 + W2 + W3 + W
4) GY = (W3 + W4) × b / (W1 + W2 + W3 + W
4) (However, in the above formula, the four load detection sensors 12 to 1
5 is a case where the rectangular swing table having a width in the left-right direction of a and a width in the front-rear direction of b is arranged at four corners. )

[0003]

However, if the center of the load is simply displayed as in the above-mentioned conventional example, the detection information W1 to W4 is zero before the subject is placed on the swing table or after the subject descends from the swing table. Therefore, the load center values GX and GY become infinite (0/0), which may cause a program error in the display device, and the load center greatly changes when getting on and off the swing platform. As a result, the load center point during the display fluctuates and the display is difficult to see. The present invention has been made in view of the above circumstances, and an object thereof is to provide an exercise training machine that displays a load center that is easy to see without a program error, regardless of the state of the subject.

[0004]

The exercise training machine of the present invention comprises:
A swing table having a plurality of load detection sensors, and a control means for calculating a load center applied to the swing table based on detection information from the load detection sensor and displaying the calculation result on a display device. The characteristic configuration is that the control means calculates the load center and displays the display on the display device as the sum of the detection information from the plurality of load detection sensors becomes the set value T for starting or more. It is configured such that the calculation of the load center and the display of the display device are stopped when the total is less than the set value U for stop.

[0005]

According to the present invention, when the subject is placed on the swing table and the total load is equal to or more than the set value for starting, the load center is calculated and the display device displays, and the subject descends from the swing table and the load is applied. When the sum of is less than the set value for stop,
Stop load center calculation and display on the display.

[0006]

According to the present invention, even when the subject is on the swing table or is in the state of descending from the swing table,
It became possible to display the center of the load rather easy to see by eliminating the program error and by not displaying the large fluctuation of the center of the load when the examinee gets on and off the swing platform.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the exercise training machine of the present invention is applied to a golf training machine will be described below with reference to the drawings. 1, 2 and 3, 1 is a load measuring device, 2 is a tea stand, 3 is a processing device, and 4 is a display device as an output means. In the golf swing training machine of the present embodiment, the processing data of the load measuring device 1 is processed by the processing device 3 during the ball hitting motion,
It is temporarily stored as time-series data of load or load center and is displayed after the ball hitting operation is completed. Hereinafter, each device will be described.

The load measuring device 1 is provided with a swing table 11 with four corners supported by load detecting sensors 12, 13, 14, 15 such as four load cells. The subject holding C performs a ball hitting motion. At this time, the load applied to the swing table 11 is 4
The load cells 12, 13, 14, 15 share the load cells, and the load and the load center are obtained from these outputs as described later. A mounting tool 25 for mounting the balls 24 is mounted on the tea stand 2. A ball detecting means 21 for detecting the presence or absence of the ball 24 is provided on the other side of the club head passage at the position where the ball 24 is set, and at the club head passing position on the backswing side, the backswing of the club is performed in the same manner as above. A club detecting means 22 for detecting the movement to the side is provided. Each of the ball detecting means 21 and the club detecting means 22 is composed of a reflection type optical sensor, and the control box 26 has a built-in drive circuit for the ball detecting means 21 and the club detecting means 22. And the processing device 3
In the above, the time point at which the state in which the sphere 24 is present or the state in which the sphere 24 is absent is detected from the detection information of the sphere detection means 21 is detected as the impact-equivalent time point.

Next, a process of obtaining the load and the load center will be described. The test subject who holds the club C stands substantially in the center of the swing table 11 on the load measuring device 1 and takes a stance. Load cells 12, 1 at the four corners of the load measuring device 1
For the outputs of 3, 14 and 15, the stand load is canceled in advance by zero adjustment in the load converter 16,
The total WT of the outputs W1, W2, W3, W4 (sum of outputs of the load detection sensors) is the load of the subject on the swing table 11. That is, WT = W1 + W2 + W3 + W4 Furthermore, at this time, since the shared output of each load cell differs depending on the relationship between the position to which the load is applied and the installation position of the four load cells 12 to 15, the load center (GX, GY) is obtained from these outputs. be able to. That is, FIG.
The left and right direction components GX and the front and rear direction components GY of the load center expressed with the inside load detection sensor 12 as the origin are four load detection sensors 12 to 15 having a width a in the left and right direction and a width b in the front and rear direction of b. In the case of being arranged at the four corners of the swing table 11 of, the following can be obtained from GX = (W2 + W3) × a / WT GY = (W3 + W4) × b / WT. The load detection sensors 12 to 1
Even if the arrangement of 5 is not at the four corners of the rectangle, the center of the load can be calculated by performing the correction calculation unique to the geometrical arrangement of the load detection sensors 12 to 15. If three or more load detection sensors are arranged, the swing table 11
It is possible to obtain the load center applied to.

The arithmetic processing means 31 calculates the load WT (sum of the outputs of the load detection sensors) according to the above-mentioned formula, and when the load WT becomes equal to or more than the set value T for starting, the load center (GX, GY) is set. It is calculated according to the above formula. The calculated load center (GX, GY) is displayed as a point P on the display device 4 in real time, and the time series data of the calculated load center (GX, GY) is sequentially stored in the storage device 33. Further, the arithmetic processing means 32, when the load WT becomes less than the set value U for stop, the load center (GX, GY).
The calculation of is stopped and the display of the load center of the display device 4 is stopped.

Next, the set value T for starting and the set value U for stopping will be described. The total sum WT changes as shown in FIG. 4 during a series of motions of the subject (mounting on the table 11, performing a ball hitting motion, and getting off the table 11). In the figure, V is the weight value of the subject. By setting the set value T to a value close to V as shown in FIG. 4, calculation of the load center (GX, GY) and display of the display device 4 are started in a state close to a state in which the subject is completely placed on the table 1. By setting the set value U to a value close to zero, the calculation of the load center (GX, GY) and the display of the display device 4 are stopped when the subject is close to the platform 1 completely. be able to. The set value U is set so that the above calculation and display are not stopped due to fluctuations during the hitting motion of the subject.

As shown in FIG. 3, four load cells 12 ...
Each of the outputs W1 to W4 of 15 is a load converter 16 equipped with a measurement bridge circuit and an A / D converter. After compensating for the weight of the swing table 11 as described above, sampling is performed at regular intervals to obtain a digital value. To do. Then, the data is sequentially taken into the processing device 3 via the I / O interface 32. The load WT and the load center (GX, GY) of the subject are calculated by the arithmetic processing means 31 in the processing device 3 according to the above-mentioned formula. Then, the calculated load WT and time series data of the load center are temporarily stored in the storage device 33 as a storage unit. Therefore, the four load cells 12 to 15, the load converter 16, I
The / O interface 32 and the arithmetic processing unit 31 function as a measuring unit S that measures the load WT or the load center applied to the swing table 11.

After the ball hitting operation, the data stored in the storage device 33 is output to the display device 4 through the arithmetic processing means 31 and the I / O interface 32, and the test subject receives the load WT and the load during the ball hitting operation. You can see the locus of change over time in the center. When the data stored in the storage device 33 is output to the display device 4, the data during the ball hitting operation is selectively displayed, but the club detecting means 22 detects the time when the ball hitting operation is started. The time when the last movement of the club to the backsung side is detected is detected as the starting time of the ball hitting operation except the time immediately before, and the end point of the ball hitting operation is detected by the reflective optical sensor 21 depending on the presence or absence of the ball 24. The end time is detected after the elapse of the set time T1 from the impact position. FIG. 5 is a display example of the locus of the load center during the hitting motion, and FIG. 6 is a display example of the locus of the load WT during the hitting motion. The display device 4 includes a graphic display device 41 that displays a temporal change of the load center (GX, GY) as a two-dimensional trajectory and a plotter 42 that outputs the temporal change of the load WT as a two-dimensional trajectory. However, conversely, it is possible to output the locus of the change over time of the load center (GX, GY) to the plotter 42 or display the locus of the change over time of the load WT on the graphic display device 41. In any case, the time series data of the load and the load center stored in the storage device 33 are interpolated and displayed as a continuous curve.
As described above, the load WT and the trajectory of the change over time of the load center in the ball striking motion are displayed and the quality of the ball striking motion is determined.

When the subject continuously performs the ball hitting motion, when the state in which there is no ball 24 is determined based on the detection information of the ball detecting means 21, the data stored in the storage device 33 and The display on the display device 4 is cleared.

Next, the load WT and the load center (GX, G
A method of storing the time series data of Y) in the storage device 33 will be described. The storage device 33 stores a load WT before the impact corresponding time, a load center X component, and a load center Y component respectively, and a load WT after the impact equivalent time, a load center X component, and a load center Y. A storage unit that stores each component, and detection information of the club detection unit 22 and the detection information of the ball detection unit 21 before the time corresponding to impact are sampled and stored in synchronization with the above-described load WT and load center sampling data. It consists of a memory unit.

The storage unit for storing the data before the time point equivalent to the impact has a storage capacity, a sampling time and 1
The set time (T
0) minutes of data can be stored. Then, sequentially discard the old data and store the new data,
The update of this data is configured to stop at the time of impact. That is, the data for the set time (T0) up to the time point equivalent to the impact when the ball hitting operation is performed is stored. Further, the storage unit for storing the data after the time point corresponding to the impact can store the data for the set time (T1) determined by the storage capacity, the sampling time, and the number of storage units required to store one data, The storage is started from the time point corresponding to the impact and is sequentially stored until the time point T1 elapses.

Next, a series of control methods for the golf training machine will be described with reference to the flowchart shown in FIG.
In step S1, the screen of the display device 4 is initialized. In step S2, it is determined whether or not the sphere 24 is mounted on the mounting tool 25 based on the detection information of the sphere detecting means 21. Sphere 2
When 4 is present, the process proceeds to the next step S3, and when not present, the process returns to step S2. In step S3, the stored data in the storage device 33 and the display on the display device 4 are cleared. Then, the process proceeds to the next step S4. In step S4, the outputs W1 to W4 of the four load cells 12 to 15 are processed as described above,
It is sequentially loaded into the processing device 3 via the I / O interface 32. Further, the detection information of the ball detecting means 21 and the club detecting means 22 is also sequentially fetched into the processing device 3 via the I / O interface 32. Then, the process proceeds to the next step S5. In step S5, it is determined whether or not the load WT is greater than or equal to the set value T. If the load WT is greater than or equal to the set value T, the process proceeds to step S6, and if not equal to or greater than the set value T, the process returns to step S4.

In step S6, the load WT and the load center of the subject are calculated by the calculation processing means 31 in the processing device 3, and the calculated load WT and the load series time series data are stored in the storage device 33. Further, the detection information of the club detecting means 22 and the detection information of the ball detecting means 21 are sampled in synchronization with the above-mentioned sampling data of the load WT and the load center and stored in the storage device 33. Then, the process proceeds to the next step S7. In step S7, the load center calculated in step S6 is displayed as a point on the graphic display device 41 in real time. Then, the process proceeds to the next step S8. In step S8, it is determined whether or not the set time T1 stored in the storage device 33 has elapsed from the impact equivalent time. If the set time T1 has elapsed, the process proceeds to step S11, and if not, the step Proceed to S9.

In step S9, as in step S4,
The outputs W1 to W4 of the four load cells 12 to 15, the detection information of the ball detecting means 21, and the detection information of the club detecting means 22 are sequentially taken into the processing means device 3. Then, the process proceeds to the next step S10. In step S10, it is determined whether the load WT is less than the set value U, and if it is less than the set value U, the process returns to step S4, and if it is not less than the set value U, the process returns to step S6.

In step S11, the time point at which the ball is hitting the ball, the time point at which the ball hits, the time point at which the ball hits the ball, and the time point when the ball hits the ball are ended, and the process proceeds to step S12. Step S12
Then, as shown in FIGS. 5 and 6, the data stored in the storage device 33 from the start of the ball hitting operation to the end of the ball hitting operation is displayed on the display device 4. Then, the process returns to step S2.

[Other Embodiments] In the above embodiment, the set value T for start and the set value U for stop are set to different values to control the calculation and display. The set value T for stop and the set value U for stop may be set to the same value. However, by setting the setting value T for starting to a value higher than the setting value U for starting, it is possible to eliminate significant fluctuations in the load data when the test subject rises on the swing table.

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 configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a plan view of a golf training machine according to an embodiment of the present invention.

FIG. 2 is a side view of the golf training machine according to the embodiment of the present invention.

FIG. 3 is a block diagram.

[Figure 4] Load change explanatory diagram

FIG. 5 is a diagram showing a load center locus display example of the display device.

FIG. 6 is a diagram showing a load locus display example of a display device.

FIG. 7 is a control flowchart diagram.

[Explanation of symbols]

 4 display device 11 swing table 12 to 15 load detection sensor GX X coordinate value of load center GY Y coordinate value of load center S control means T set value for starting U set value for stopping W1 to W4 detection information WT detection information Sum

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masayuki Kasu 1-1-1 Hama, Amagasaki City, Hyogo Prefecture Kubota Technology Development Laboratory Co., Ltd.

Claims (1)

[Claims] 1. A swing table (11) on which a subject is placed and which is provided with a plurality of load detection sensors (12-15).
Detection information (W from the load detection sensor (12 to 15)
1 to W4), the load center (GX, GY) applied to the swing table (11) is calculated, and the calculation result (G
An exercise training machine provided with a control means (S) for displaying (X, GY) on a display device (4), wherein the control means (S) comprises the plurality of load detection sensors (12-15). As the total sum (WT) of the detection information (W1 to W4) from the above becomes equal to or more than the set value (T) for start,
Calculation of the load center (GX, GY) and display of the display device (4) are performed, and as the total sum (WT) becomes less than the set value (U) for stop, the load center (GX,
An exercise training machine configured to stop the calculation of GY) and the display of the display device (4).