JPS5946983A - Golf exerciser - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention detects the moving speed of the club head and the ball during the swing, and determines the horizontal launch angle and velocity relative to the launch target when the ball speed is greater than the club head speed. This invention relates to an electronic golf practice device that displays data.

When it comes to conventional golf practice devices, most of them are swing correctors, devices that detect club head movement, or devices that use a simulated ball.

However, considering that the sport of golf is a competition to get the ball into the cup in the fewest number of strokes, improving your golf skills requires learning the direction the ball flies,
It is necessary to become proficient in freely controlling flight distance, and in order to achieve this, it is desirable to have a device that accurately and objectively detects and displays the data of the ball being launched. In the practice type, it is difficult to accurately detect a ball that is hit in a random direction at high speed, and it does not meet the above purpose.

However, when it comes to accurate various data, for example, the horizontal launch angle must be detected from the vertical direction, and the vertical launch angle must be detected from the horizontal direction. A large number of light-emitting elements and light-receiving elements are required, and the actual equipment is quite labor-intensive! ] There is a drawback.

The present invention has been made in view of the above-mentioned drawbacks, and includes a club l\ when swinging an innovative club.

The display means comprises: a deviation detecting means for detecting the movement state of the ball and the ball, a calculation means for processing the detection signal and outputting data regarding the movement of the ball, and a deviation display means for displaying the data, At least the movement state of the club head is not displayed, so that only accurate data is displayed at all times.
7 training equipment.

Diagram (in ζ, ■ is the main body of the golf practice device, 2 is the base y,
Fy, a mat with a grass-like part placed on the second side of 3;
It houses detection units 71 and 72 that measure club speed. Reference numeral 4 indicates the target direction using a white line drawn at -Jl on the base section 9, which will be described later.

5 penetrates the mat 2 and is erected on the base plate 3 t:-de? , 6 is this Te? The first golf ball placed on top of, 73
is the club head, e is the ideal flight axis of the ball, and the projected line from above coincides with the white line 4.

9 is a base part that extends and is integrally provided with the base plate 5 on the side in the direction in which the ball is launched; ]0 is the base part 9 that is located at the complete center of the ideal fly ball axis 7 of the Bono C6 and is opposite to the batter of the base part 9. A signal detection section is installed upright at the end of the side and houses circuits, etc., which will be described later.

1.1.12 is a signal detection unit] A signal composed of a pair of light receiving elements +1Y provided on the substrate 13 in 0 in a direction parallel to the J-down direction at a predetermined distance #l in the direction of the ideal fly ball axis 7. It is a detection means. Photodetector T! Y ] 111 consists of light-receiving elements 11'a...Ilk arranged at intervals r, and light-receiving element groups 12a...1j2n to...
It is configured.

13. Before detecting the signal as the entire center of the ideal flight axis 7 of the ball, there is a signal generator provided at the end of the base 9 on the opposite side from 0. 14 and 15 are light receiving element groups, respectively 11,12
extending in the perpendicular direction to the white line 4 → provided in the upper signal generating section 13 t: Signal generating means consisting of a light emitting element - C 3 degrees Light emitting element 14 -) 2 light receiving elements RNI, 12 as a whole The light will shift.The optical axis will be shifted by the light-receiving element.
l, set to match the center of 12 - 4 j: 3
r), light emitting element] 5 is -1- light receiving element 1Y12 so that the optical axis can be irradiated to the entire liver 12;
-C, which is set to ``matches the center of ``.

17, ]8 are through holes BY formed in the cover plate J9 which protects the front surfaces of the light receiving element groups II and 12, respectively, and through holes IY.
]7 is a through hole corresponding to each light receiving element +1n...Ilk]7n...17k, t:
Clear hole F! Consisting of ¥18a...18n.

58 is a display device (described later) that processes signals from the main body 1 (17) and displays ball data related to the swing; 21 (display section); 23 is a main switch; Next, the principle of this invention will be described.The method for measuring various data of the ball 6 will be explained for each light-receiving element group +1.]2 and the light-emitting element 1.4.15.
This will be explained based on FIGS. 3 to 5, which show the flight axis of the ball in a modern manner.

FIG. 3 is a diagram showing the principle of calculating the launch angle of the ball in the horizontal direction, and the M line a is a projection of the plane of light from the light emitting element 14 to the light receiving element group 11.

The direct tic is a plane C of light from the light emitting element 15 to the light receiving element +3\12 projected from above, and the above direct lea
is parallel to The straight line d is a projection of the ideal fly ball axis 7 of the ball 6 from above, and is perpendicular to the straight lines aa and C.

The plate is the distance between the pair of light receiving element groups 11 and 12, J is the distance from the light emitting element 15 to the straight line d, 1 is the distance from the mounting tube place S of the ball 6 to the straight line 8, and θ is the straight line C. is the intersection angle of

If we consider in detail the case where the ball 6 is hit along the fly ball line e, we can see that the projection from above shows that the ball 6 is hit along the fly ball line e.
1. is shown as J on a straight line e, and the intersection angle a between this straight line e and the plane line d is - (, which is shown as the horizontal flight angle 17 of the ball 6's flight 4 +5t e).

mO+ Lr1l+ m2+ 'Yo each one of light'l'i
n, b, c”: sawn point Mo, +1+L+, M
Projected from z's nigga, t: indicates a point, and each straight line ``T b
T bT top: There it is.

m+, + "3r m6, straight line d is straight line a, b, c, respectively
There is an intersection of the perpendicular lines from Px and ml to the straight line d, and the distance between m4 and Px is X, and the ball 6 is Mo
, the time required to pass between M+'rI, M+ and Mz
By measuring the time T2 required to pass through the gap, the following equation is calculated by simple geometric calculation.

T”1+”I’2 Further, the distance # between m4 and m5 is expressed by the following equation. .

K= i −j tan θ (2) Also, the following equation is calculated from the figure shown in FIG. 3 based on geometric calculations. .

``To determine whether the value of a shifted to the right is the one that is shifted to the left.'' All you have to do is compare the formula (1) and the formula (2), and if K > x, then To the right, K (x”
When , it is sufficient to assume that it is shifted to the left.

Next, FIG. 4 is a diagram showing the principle of calculating the height angle at which the ball flies out, and it is assumed that the height of the light receiving element 12c that detects the point M2 where the ball 6 crosses the plane C of light is 11.

If the elevation angle of the fly ball line e from the horizontal plane is β, the projection angle of light from the light emitting element 15 to the light receiving element 12c is y, and the distance on the horizontal plane from the light emitting element 5 to the light receiving element group 12 is J, then the following equation is obtained. is calculated.

Furthermore, the following equation is calculated based on simple geometric calculations.

Next, Fig. 5 is a diagram that calculates the absolute velocity of the ball 6 when it pops out. The following formula is calculated from the distance between Mo and M2. V = +
-1(1'1+T'21 cosa-cosa)(6
) Therefore, based on the principle diagrams of FIGS.
4, ]5 light receiving element 1jY1], ]2 and person/
[light-receiving element] 1a...11k, light-receiving element r
12a......+2n geometric plane position n relationship is constant 1 (: If it is determined, the flight direction, 1 and speed of the ball 6 are the above time difference TI, i'2 and height 1 according to equations (1) to (6) by detecting II.
11 arithmetic processing is performed, and k to be displayed can be obtained.

However, the time difference TI, ``I'2 and height III
In addition to ball 6, the signal source for detection is 4 signals generated by the club being swung and the rad. The absolute speed of the ball is always greater because the ball's repulsive force is added to the speed of the head, but golf clubs have a loft angle, and the ball flies out at an angle of elevation relative to the ground. Become.

Therefore, if you hit the ball with a club with a large loft angle, the direction of the club head will first hit the light receiving element groups 11 and 12.
It is also possible that the light receiving element group 1.1 is blocked.
．． If each of the first cutoff signals in 12 is judged as a ball signal, the trajectory and speed of the swing to the club and the radius will be displayed incorrectly.

Therefore, in the present invention, in order to prevent this, the club head speed is measured separately in a manner not shown in FIG.
Compare the magnitude of δ1 from the light receiving μ elements 3i1.1, 1.2 with the constant speed, and if they are almost the same or the head speed is higher, the ball data will not be displayed on the display unit 5B. This is to avoid mislabeling.

Therefore, in the present invention, this is prevented in the present invention.An example of measuring the club belly button speed is as follows: Ma, 1-20 balls 6 degrees behind the spinog direction - 1 predetermined distance 1 m s /, i apart dl,
/,: Coaxial fibers 71 and 72 are provided, and this coaxial fiber 71
When the club head 73 passes through this 1-, a signal is detected by the light-receiving element "J'[io, 61], and both signals are emitted by the inner axis of fibers 7] and 72 and received by the outer axis. If the time difference Lte is measured, the speed can be calculated using equation (7).

By comparing this \rad speed and ■ calculated from equation (6), if the speed V shows a larger value, the speed ■ is considered to be the ball speed (3).

+51, the data calculated using the f61 formula, etc. are displayed on the display unit 5.
Displayed at 8.

On the other hand, if the speed V is the same as or smaller than the speed VH, then
The door 3 data is mixed into the light receiving element 1'j.
Since it is considered that the data was detected at i1.1.12, erroneous display can be avoided by not displaying the measurement data on the ball side.

Next, FIG. 7 shows an example of a circuit that realizes the above-mentioned principle as an actual system.

In the figure, 31 is a zero oscillation circuit that oscillates a high frequency signal;
32 is a modulation circuit that separates this high-frequency signal into, for example, a signal A and a signal B having different phases and outputs the signals; 33 is a signal Alf;
An f-width circuit, 34 is a signal B amplification circuit, and 35 and 36 are driver circuits that drive the light receiving elements 14 and 15, respectively.

37.38 are amplifier circuits that amplify the detection signals from the light receiving elements 11a......bow 1 and the light receiving elements 12a...12n, respectively, and 39.40 is an amplifier circuit that removes noise components. 41 and 42 are signal A detection circuits and signal B detection circuits that process the signals from the demodulation circuit 39 and detect signal A and signal B, respectively.

43 is a signal B detection circuit that also processes the signal from the demodulation circuit F640 and detects 6 signals B, 44n...
・Each amplification time F on 44! 837, a detection circuit consisting of a demodulation circuit 39, a signal A detection circuit 41, and a signal B detection circuit 42, 451'1...45nt, i each amplifier circuit 38, demodulation circuit 40, and detail 13 detection circuit This is a detection circuit consisting of 843 and 843.

50 receives the detection signal of signal A from the signal A detection circuit 41, and the ball 6 moves from the light emitting element 14 to the light receiving element 11 n
...... 1] A signal A cutoff detection circuit 51 detects that the light to k is cut off, similarly receives the detection signal of signal B, and the ball 6 emits light 1; from the child 15 to the light receiving element 12.
a... 1211 light is detected to be interrupted. (No. 11! Alpha disconnection detection circuit.

52 is (S No. B detection time! In response to the detection signal of signal B from l843, the ball 6 receives light from the light emitting element 15.
A signal B cutoff detection circuit that blocks light to n...1211 and detects t:.

53 detects the signal 13 from the signal B detection circuit 43 (F4
A position detection circuit detects which of the light receiving elements 12a...12T1 blocks the light from the light emitting element 15 from the ball 6 upon receiving the signal, and outputs the position of the light receiving element that is blocked by -C1. .

55 is a timer that starts time measurement with the cutoff signal from the signal A cutoff detection circuit 50 and stops with the cutoff signal from the signal B cutoff detection circuit 51; 56 is the signal B; +! Discontinuation detection times M? A timer that starts time measurement with the interruption detection signal from G51 and stops when the signal B is interrupted from the interruption detection port N85-2.

60.61 is a light receiving element for detecting the head passing signal of the coaxial fiber 71.72 provided on the mat 2 for measuring rad speed, 62 and 63 are amplifier circuits, and 64 is the club head passing time. A timer 65 is a dividing circuit for converting the speed into speed. 66 and 67 are a light emitting element and a driver circuit for driving the light emitting element, respectively.

57 receives the outputs from the position detection circuit 53 and timers 55 and 56, and calculates data regarding the launched ball 6, such as the launch angle of the ball in the horizontal direction and the velocity in the axial direction of the fly ball, and calculates the velocity in the axial direction of the fly ball. , a logic operation circuit that compares the head speed with a separately calculated head speed and outputs the data to the display section when a predetermined condition is not met.

A display device 58 receives this data and displays information regarding the ball hit.

59 is for switching between an iron-type club to be hit by placing an iFrFr-rule on M,) and 2, and a wood-type club to be hit by flJy) via Te f5, and in the internal logic operation circuit 57. This is a club selection switch that corrects the calculation process.

The operation of the above configuration will be explained.

"Zu club selection switch..." Switch to "C59" and select "Unodo" (
After this, the player is placed on the tee 5 and hits the first ball 6. The ball 6 and the club 73 that have been hit cross the plane of light Nll11pb+C formed by the light emitting elements 14, 15 and the light receiving element groups 11°12.

Each of the light-receiving element groups 11 and 1.2 is a light-emitting element at normal times]4.
Upon receiving the light from 15, the detection circuit 44n...
44k outputs signal A and signal Bie, respectively, and detection circuits 45a...45n output signal B, but when the ball 6 or the club 73 crosses the light plane a Is the interruption of light caused by crossing the signal A detection port? 850, this output starts the timer 55, and then the interruption of the light is detected by the signal B interruption detection circuit 5], and this output stops the time measurement of the timer 55 and at the same time starts the timer 55.
Start 6.

Furthermore, the light interruption caused by the ball 6 or the club 73 not passing through the light plane C is the signal interruption detection port F? 852 and the position detection circuit 53, and the output from the signal B cutoff detection circuit 52 stops the time measurement of the timer 56.

The position detection port FP153 outputs from which light receiving element of the light receiving element group 12 light interruption has been detected.

The position detection circuit 53, evening, and time signals 55 and 56 are designed to be driven and stopped by the first signal, and to be automatically reset after the completion of the arithmetic processing in the logic operation circuit 57. Needless to say, the logical operation circuit 57 is connected to the timer 55, the timer 56, and the position detection circuit 5.
Based on the output from 3-C, according to equation (1) or 6)-1
and (6) the head speed from the division circuit 65.
The calculated A]k speeds are compared with the equation ([3)], and when the equation [3] is larger, the logic operation circuit 57 displays on the display device 58 1; At other times, the calculated data is not transferred to the display device 58, but it is difficult to accurately display the absolute speed of the four reballs, the horizontal launch angle, the vertical launch angle, etc. .

4f. In this embodiment, the detection means is composed of a light receiving element and a light emitting element r-, but the detection means is not limited to this. For example, a combination of an ultrasonic generating element and an ultrasonic detector may be used. In short, if the moving state of the ball can be detected, it is a good idea.

As explained above, according to the present invention, the shift detection means detects the state of movement of the golf club, the direction, and the ball during the swing of the golf club, and the detection signals from the second detection means are processed and data regarding the movement of the ball is obtained. and a display means for displaying the data, and the display means does not display the data at least when the speed of movement of the club is greater than the speed of movement of the club. Therefore, it is possible to provide a golf practice device which is effective in that golf practice can be performed by always referring to correct data without displaying data related to illegal FIQ ball movement.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a golf practice device showing an embodiment of the present invention, Fig. 2 is a cross-sectional view of main parts showing the relationship between the light receiving element and the light emitting element, and Fig. 3 shows the horizontal launch angle of the ball. Figure 4 is a diagram of the principle for calculating the flight angle of a ball in the vertical direction, Figure 5 is a diagram of the principle for calculating the velocity of the ball in the flight direction, and Figure 6 is this diagram. FIG. 7 is a cross-sectional perspective view of a main part showing a schematic configuration of a main part of an embodiment of the invention, and FIG. 7 is a circuit functional block diagram of a golf practice device of an embodiment of the invention. In the figure, 11 (signal detection means consisting of 4 light-receiving elements 11Y, 12 (A detection means) consisting of light-receiving elements I!Y, 4 signal generation means consisting of light-emitting elements, 15 1-light-emitting elements) A No. 3 generating means consisting of; 57 is a logic operation circuit; 5
8 is a display device. Agent Makoto Kuzuno - (1 other person) Fang 1 Figure 3 Iλ1 Procedural amendment (method) 5'7 12 23 % formula % 2, Title of invention Golf practice device 3, h old case Relationship with Patent Applicant Address: 2-2-3 Kuunouchi, Chiyoda-ku, Tokyo Name: +6011 Mitsubishi Electric Corporation Representative Katayuni Hachibe 4, Agent Address: 2-2 Kuunouchi, Chiyoda-ku, Tokyo Number 3 5,? Date of ITI official order: November 3, 1982
0-day statement 7, reprint of the amended statement (no change in content)

Claims (1)

[Claims] A detection means for detecting the movement state of the club head and the ball when the golf club is swung, a calculation processing means for processing the detection signal from the detection means and outputting data regarding the movement of the ball, and a display for displaying the data. means, wherein the display means does not display the data at least when the moving speed of the club head is greater than the moving speed of the ball.