JP2644632B2 - Golf practice machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swing table having a load detecting sensor on which a subject who performs a hitting operation while holding a club is provided, and a load applied to the swing table based on information detected by the load detecting sensor. Or, a measuring means for measuring the center of load, a storage means for sampling measurement information of the measuring means at predetermined time intervals and sequentially storing data, and among the storage information of the storage means, from a start of a backswing to a follow swing. The present invention relates to a golf training machine provided with a discriminating means for discriminating information stored during a predetermined hitting operation until the end, and an output means for outputting discrimination information of the discriminating means.

[0002]

2. Description of the Related Art Such a golf practice machine is used for practicing a hitting operation of golf. That is, in the practice of the hitting ball motion, whether the movement of the load center accompanying the hitting ball motion from the start of the back swing to the end of the follow swing is performed correctly, or whether the load change during the ball hitting motion is performed correctly It is well known that this is an important indicator for shaping the correct hitting motion. Therefore, when the test subject hits the ball on the swing table, the load or the center of the load applied to the swing table is measured, and the sampled data is sequentially stored in the storage device. Is displayed, so that it is possible to diagnose whether the ball is hit or not. Incidentally, Table of hitting operation backswing, downswing, and, although carried out in follow-swing and a series of continuous operation, conventionally, the information stored in the striking operation
In the display, the stored information during the ball
Section during the swing, section during the downswing
Minutes and corresponding parts during follow swing
It was displayed in a state that cannot be distinguished. For example, the display
And the display information of the plotter,
From the start of the swing to the end of the follow swing
By the same line throughout
Was.

[0003]

Therefore, in the above conventional golf practice machine, the subject can determine which part of the backswing, downswing, and follow swing in his hitting motion from the display result of the stored information during the hitting motion. However, there was a problem that it was not possible to make a clear diagnosis of whether the condition was bad. For example, display devices for displays and plotters
At the start of the backswing
To the end point of the follow swing.
Even if they are displayed by the same line, the subject
From the start of the swing to the end of the follow swing
Think of it as a pattern and compare it with a model pattern
It is possible to make a diagnosis
Which part of the swing, downswing and follow swing
It was not possible to clearly diagnose whether it was bad. Therefore,
In the conventional golf practice machine described above, when practicing the hitting ball motion, it is not possible to effectively practice to improve a bad part in the hitting ball motion, and a sufficient practicing effect has not yet been obtained. The present invention has been made in view of the above-described circumstances, and its purpose is to provide a recording method during a hitting operation.
Memory information, the corresponding part during the backswing, downs
During the swing and during the follow swing
It is an object of the present invention to provide a golf practice machine capable of displaying a corresponding portion in a distinguishable state, clearly diagnosing a bad part in a hitting motion, and practicing effectively.

[0004]

According to a first characteristic configuration of a golf training machine according to the present invention, the discriminating means corresponds to each of a top position and an impact position in the stored information during the predetermined hitting operation. Configured to determine the part,
The output means is capable of loading during the predetermined hitting operation.
Display the heart as a two-dimensional trajectory and smell it
The predetermined stroke based on the discrimination information of the discriminating means.
The line representing the trajectory of the load center during ball movement is
Corresponding part during wing, corresponding during downswing
Each part and the corresponding part during the follow swing
Configured to display in different display states
There is in the point.

[0005] The second characteristic configuration specifies a preferred specific configuration for implementing the first characteristic configuration, and is described in detail below. That is, the second characteristic configuration is that the output means is configured to control the load center during the predetermined hitting operation.
The line representing the locus of the corresponding part during the backswing,
The part corresponding to the downswing and the follow switch
Colors differ between adjacent parts that correspond to each other during printing
The point is that the display is made in such a state .

[0006]

According to the first characteristic configuration, during a predetermined hitting ball operation,
By displaying the center of load as a two-dimensional trajectory.
And the center of load is correctly moved during the ball
Can be accurately identified. Prescribed ball motion
Display the center of load during work as a two-dimensional trajectory
And the lines representing the trajectory of the load center intersect or overlap
In some cases, the shape of the trajectory is as follows. So, under load
The line representing the trajectory of the heart is drawn to the corresponding part during the backswing
Minutes, corresponding parts during downswing, and follow
During the swing, each corresponding part has a different display state
By displaying in the state, the line representing the trajectory of the load center is
Even if they intersect or overlap,
In the trajectory, the corresponding part during backswing, dow
Corresponding part during the swing and follow swing
It is easy and accurate to identify each corresponding part in
it can.

By the way, the locus of the center of load is
Section during the swing, section during the downswing
Minutes and corresponding parts during the follow swing
When displayed in a state where they can be separated, as shown in FIG.
The entire line representing the center locus is displayed in the same display state (line type
Class and line color are the same), and the top position in the trajectory
P2 and the part corresponding to the impact position P3
A configuration that displays a mark M that can identify various positions is assumed.
It is. However, in this case, the locus of the load center is displayed.
When the lines intersect or overlap,
The corresponding part during the backswing,
During the following swing and during the follow swing
It may be difficult to accurately identify each corresponding part.

[0008] According to the second characteristic configuration, a predetermined hitting ball motion
During the backswing on the locus of the load center in
Part, part during downswing, and
During the follow swing,
Easy and accurate by the difference of the color of the line representing the trajectory of the heart
Can be identified.

[0009]

According to the first feature configuration, the subject can
The center of load is correctly moved during the ball
Whether or not the shape of the locus of the load center
During swing, down swing, and follow-in
Parts corresponding to each part of the
So that in your own hitting motion, the center of the load
Back swing, down switch
And each of the following swings
It is possible to clearly diagnose bad places and it is more effective
You can practice. According to the second feature configuration,
In the trajectory of the load center during the
During swing, down swing, and follow swing
Are displayed in different colors.
During backswing, downswing, and
Easier identification of each part during low swing
As a result, it is possible to better diagnose my bad spots
It can be done.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a golf practice machine according to the present invention 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, 4
Is a display device as output means. The golf swing practice machine of the present embodiment processes the measurement data of the load measuring device 1 during the hitting operation with the processing device 3 and temporarily stores it as time series data of the load or the center of the load, and displays it after the hitting operation. This will be described below for each device.

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 hitting motion. At this time, the load applied to the swing table 11 is 4
The load is shared by the load cells 12, 13, 14, and 15. From these outputs, the load and the load center are obtained as described later. A mounting tool 25 for mounting a ball 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. A club detecting means 22 for detecting the movement to the side is provided. Both the ball detecting means 21 and the club detecting means 22 are reflection-type detecting means. The control box 26 incorporates a drive circuit for the ball detecting means 21 and the club detecting means 22.

Next, the process of obtaining the load and the center of the load will be described. The subject holding the club C stands at substantially the center of the swing table 11 on the load measuring device 1 and takes a stance. Load cells 12, 1 at four corners of the load measuring device 1
For the outputs of 3, 14, and 15, the base load was previously canceled by the zero adjustment in the load converter 16, respectively.
The total WT of the outputs W1, W2, W3, and W4 is the load of the subject on the swing table 11. That is, WT = W1 + W2 + W3 + W4 Further, at this time, depending on the relationship between the position where the load is applied and the installation positions of the four load cells 12 to 15, the load outputs of the respective load cells are different, and the load center (X, Y) is obtained from these outputs. be able to. That is, when the four load cells 12 to 15 are accurately arranged at the four corners of the square, the left-right component X and the front-rear component Y of the load center expressed with the load cell 12 in FIG. X = (W2 + W3) / WT Y = (W3 + W4) / WT Note that the load cells 12, 13,
Even when the arrangement of 14 and 15 is not at the four corners of the square, the center of load can be obtained by performing a correction unique to the geometric arrangement of the load cells. If three or more load cells are provided, the center of load applied to the swing table 11 can be obtained.

As shown in FIG. 3, four load cells 12 to
Each of the outputs W1 to W4 of 15 is a load converter 16 provided 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 time intervals to obtain a digital value and I 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 (X, Y) of the subject are obtained by the arithmetic processing means 31 in the processing device 3 in accordance with the above-described formula. Then, the obtained load and the time series data of the load center are temporarily stored in the storage device 33 as storage means. Accordingly, the four load cells 12 to 15, the load converter 16, the I / O interface 32, and the arithmetic processing means 31 function as a measuring means S for measuring the load applied to the base 11 or the center of the load.

After the ball hitting operation is completed, the data stored in the storage device 33 is processed by the arithmetic processing means 3 functioning as the discriminating means O.
1 and the display device 4 via the I / O interface 32
And the subject can see the locus of the load during the ball-hitting operation and the temporal change of the load center. The display device 4 includes a graphic display device 41 for displaying a temporal change of the load center (X, Y) as a two-dimensional locus and a temporal change of the load WT by two.
It comprises a plotter 42 for outputting as a dimensional trajectory. However, on the contrary, it is also possible to output the trajectory of the temporal change of the load center (X, Y) to the plotter 42 or to display the trajectory of the temporal change of the load WT on the graphic display device 41. In any case, the load and the time-series data of the load center stored in the storage device 33 are interpolated and displayed as a continuous curve. As described above, the locus of the load and the center of the load in the hitting operation over time are displayed to judge the quality of the hitting operation.

In the case where the test subject performs a continuous ball-hitting operation, when the discriminating means O discriminates from the state where the ball 24 is not present to the state where the ball 24 is present based on the detection information of the ball detecting means 21, it is automatically stored in the storage device 33. And the display of the display device 4 are cleared.

Next, a method of storing the time series data of the load WT and the load center (X, Y) in the storage device 33 will be described. As shown in FIG. 4, the storage device 33 is divided into nine independent storage units, which respectively store the load WT, the X component of the load center, and the Y component of the load center before the time corresponding to the impact. Three storage units 33A, 33B, 3
3C, three storage units 33D, 33E, and 33F for storing the load WT, the X component of the load center, and the Y component of the load center after the time corresponding to the impact, respectively, and the detection information of the club detecting unit 22 before the time corresponding to the impact. And two storage units 33G and 33H that sample and store the detection information of the ball detecting means 21 in synchronization with the load data and the sampling data of the load center, respectively, and further calculate from the X component and Y component data of the load center. The storage unit 33I calculates the tangential speed of the locus of the load center by the processing means 31 and samples and stores the calculated information in synchronization with the load and the sampling data of the load center.

Six storage units 33A, 33B, 33C, 33G, 33 for storing data before the time corresponding to the impact.
H and 33I can store data for a set time (T0) determined by the storage capacity, the sampling time, and the number of storage units required to store one data. And
The new data is sequentially stored while the old data is sequentially discarded, and updating of this data is stopped at a time corresponding to the impact. That is, data for the set time (T0) up to the time corresponding to the impact when the ball is hit is stored. The three storage units 33D, 33E, and 33F that store data after the time corresponding to the impact are data for a set time (T1) determined by the storage capacity, the sampling time, and the number of storage units required to store one data. Can be stored, and the storage is started from the time corresponding to the impact and is sequentially stored until the time T1 elapses.

The discriminating means O discriminates, from the stored information in the storage device 33, the stored information during the hitting operation from the start of the back swing to the end of the follow swing, and among the stored information during the hitting operation, A portion corresponding to the top position and the impact position is determined. Next, a method for determining the portions will be described with reference to FIG. First, the data in the storage unit 33H of the detection information of the ball detecting means 21 is sequentially searched, and data indicating the time corresponding to the impact (the time when the detection information of the ball detecting means 21 detects the state where the ball 24 is present or not) is stored. Find the position P3. The discriminating means O discriminates the storage position P3 as the impact equivalent time data.
Of the detection information storage unit 33G is sequentially searched from the storage position P3 of the data at the time corresponding to the impact in the direction of going back in time from the storage position which is set back by the set time T2,
Data in which the club detecting means 22 first detects the movement of the club C to the backswing side in the search direction appears.
That is, as time elapses, the club detecting means 22
Find the storage position P1 at the time when the movement to the backswing side is finally detected. The discriminating means O calculates the storage position P
1 is determined as the data at the start of the hitting operation. Note that the data is stored for a set time T
The reason for going back by 2 is that the club detecting means 22 detects the movement of the club C immediately before the time corresponding to the impact. The value of T2 is suitably about 100 mS, but can be changed as necessary. Further, the data in the storage unit 33I of the calculation information of the tangential speed of the trajectory of the load center is sequentially searched in a direction going back in time from the storage position P3 of the data at the time corresponding to the impact, and the tangential speed with respect to the search direction is searched. First finds a storage position P2 where the speed is equal to or lower than a predetermined speed, and the determination means O determines this storage position P2 as the top position.

The discriminating means O stores the information stored during the hitting operation from the start time P1 of the hitting operation to the top position time P
2 until the impact position time P from the top position time P2
3 and is divided into three blocks from the impact position time point P3 to the end and output to the display device 4 via the interface 32.

Next, a description will be given of a method of displaying the stored information during the hitting ball operation by the display device 4 as the output means based on the discrimination information of the discrimination means O described above. That is, as described above, the display device 4 performs the printing based on the storage information divided into three blocks and output by the determination means O.
Display the center of load as a two-dimensional trajectory during ball movement
And the display indicates that the player
The line representing the trajectory of the center of load
Part, corresponding part during downswing, and
Display corresponding to different parts during arrow swing
Display in a state where For example, as shown in FIG. 5, the graphic display device 41 uses the information of the X component and the Y component of the load center to display a line representing the locus of the load center (X, Y).
Is the same line type such as a solid line, and P1
During the backswing of P2, the corresponding part is red, P2
Is blue during the downswing from P3 to P3
Corresponding part during follow-up swing from 3 turns yellow
It is displayed in a color-coded state. In the figure, L
F and RF indicate the positions of the left foot and the right foot, respectively, and the foot positions can be determined very easily if they correspond to the positions previously drawn on the table 11, but the subject actually It can also be obtained from the load measurement result when the weight is deposited on only one foot at the position where the stance is taken. Or,
As shown in FIG. 6, a line representing the locus of the change over time of the load WT
Is the same line type such as a solid line, and P1
During the backswing of P2, the corresponding part is red, P2
Is blue during the downswing from P3 to P3
Corresponding part during follow-up swing from 3 turns yellow
It is displayed in a color-coded state.

Next, a series of control methods of the golf practice 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 S <b> 2, the determination unit O determines whether the ball 24 is mounted on the mounting tool 25 based on the detection information of the ball detection unit 21. When there is a ball 24, "Please swing" is displayed on the graphic display device and the process proceeds to the next step S3. When there is no ball 24, "Please set the ball" is displayed on the graphic display device 41 and the process returns to A. . In step S3, the data stored 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 four load cells 12 to
The 15 outputs W1 to W4 are processed as described above, and are sequentially taken into the processing device 3 via the I / O interface 32. In addition, ball detecting means 21 and club detecting means 22
Is sequentially taken into the processing device 3 via the I / O interface 32. Then, the process proceeds to the next step S5.

In step S5, the load and the load center of the subject are calculated by the arithmetic processing means 31 in the processing device 3, and the calculated load and the time series data of the load center 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 load and the sampling data of the center of the load, and stored in the storage device 33. Further, the tangential velocity of the trajectory of the load center is calculated from the data of the load center by the calculation processing means 31, and the calculated information is sampled in synchronization with the load and the sampling data of the load center to store the data. To memorize. Then, the process proceeds to the next step S6. In step S6, the step S
The load center calculated in 5 is displayed on the graphic display device 41 as a point in real time. Then, the process proceeds to the next step S7. In step S7, the processing from step S3 to step S6 is continued until the time of the set time T1 stored in the storage device 33 from the impact equivalent time elapses. Then, the process proceeds to the next step S8.

In step S8, the start time P1, the top position time P2, and the impact position time P3 of the hitting operation are determined by the determining means O, and the stored information during the hitting operation is stored in the top position from the starting time P1 of the hitting operation. Time point P2
From the top position time point P2 to the impact position time point P3
And 3 from the impact position time point P3 to the end.
It is divided into blocks and output to the display device 4 via the interface 32. Then, the process proceeds to the next step S9.
In step S9, as described above, the load center (X, Y)
The trajectory and the trajectory of the change over time of the load WT are displayed on the display device 4.
indicate. Then, the process returns to step S2.

[Alternative Embodiment] As an example of displaying the locus of the load center during the hitting operation,
In addition to the display example illustrated in the example,
The line that represents the downswing during the backswing
During the swing and during the follow swing
Each corresponding part has a different line type between adjacent ones
It may be displayed in a state. For example, as shown in FIG.
A line representing the locus of the center of gravity (X, Y) is drawn from P1 to P2.
The part corresponding to the xing is a solid line, from P2 to P3.
The corresponding part during the downswing is the dotted line,
The corresponding part during the follow swing will be a dashed line
May be displayed as follows.

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

[Brief description of the drawings]

FIG. 1 is a plan view of a golf practice machine.

FIG. 2 is a side view of the same.

FIG. 3 is a block diagram of the same.

FIG. 4 is a configuration diagram of the storage device.

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

FIG. 6 is a diagram showing a display example of the display device.

FIG. 7 is a flowchart of the control.

FIG. 8 is a diagram showing a display example of a display device of a golf practice machine according to another embodiment.

FIG. 9 is a diagram showing a comparative example in displaying a locus of a load center.

[Explanation of symbols]

 Reference Signs List 4 output means 11 swing table 12 load detection sensor 13 load detection sensor 14 load detection sensor 15 load detection sensor 33 storage means O determination means S measurement means

 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-3-55076 (JP, A) JP-A-4-174683 (JP, A)

Claims (2)

(57) [Claims] An object for performing a ball-hitting operation while holding a club (C) is mounted on the club, and a load detecting sensor (12, 13, 1) is provided.
A swing table (11) including a swing table (4, 15); and a measuring unit (4) for measuring a load or a load center applied to the swing table (11) based on detection information of the load detection sensors (12, 13, 14, 15). S), storage means (33) for sampling the measurement information of the measurement means (S) at regular intervals and sequentially storing the data, and among the storage information of the storage means (33), from the start of the backswing. A golf training machine provided with a discriminating means (O) for discriminating stored information during a predetermined hitting operation until the end of a follow swing, and an output means (4) for outputting discrimination information of the discriminating means (O). there are, said discriminating means (O) is configured to determine the portion corresponding to each of the top position and the impact position among information stored in the predetermined hitting operation, the output means (4) is, Before The center of load during the predetermined
Displayed as a dimensional trajectory, and
The predetermined stroke based on the discrimination information of the discrimination means (O).
The line representing the trajectory of the load center during ball movement is
Corresponding part during wing, corresponding during downswing
Each part and the corresponding part during the follow swing
Configured to display in different display states
Golf practice machines are. 2. The method according to claim 1, wherein the output means (4) is configured to output the predetermined hit ball.
The line representing the locus of the load center during operation is
Section during the swing, section during the downswing
Minutes and corresponding parts during the follow swing are next to each other
Make sure that the colors that match each other are displayed in different colors.
Golf training machine according to claim 1, wherein that have been made.