JPS59144468A - 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 Field of Industrial Application The present invention relates to a golf practice device in which a detection element for detecting the movement of the head of a golf club is configured to be able to detect the movement of all clubs such as wood, iron, and butter. Regarding machines.

Conventional Structure and Problems A conventional practice machine capable of detecting the movement of a club is shown in FIG. That is, 1 is a golf mat, 2 is a plastic base partially placed under the golf mat 1, and the recess for inserting the detection element 5 is accurate, and the distance between them is only the same in the direction of Love's swing. Precision machining is performed at two separate locations and at one location a distance apart from the one recess in the direction perpendicular to the swing direction. β
4 is an arithmetic device that calculates the swing speed and swing direction of the club by processing the signals from the detection element 6 that detects the swing direction and speed of the club, and displays the calculated values; The signal cable rope 6 that transmits signals to the arithmetic device 3 is a golf ball.

1 As shown in FIG.
A signal for detecting the movement status of the magnet 13 attached to the magnet 2 is output. Further, the detection element 6 is connected to the clap head 1.
A permanent magnet 8 serves as a signal generating section such as a magnetic flux generating section that sends magnetic flux to a club head 12 that moves with this permanent magnet 8.
The magnetic flux two-way coil 1Q is connected to the magnetic flux search coil 1Q through the detection part of a magnetic sensor, etc., which detects the temporal change in magnetic flux due to interference and outputs a voltage. 1Q is wound around the side surface of the permanent magnet 80 via a protective frame 9 and is integrally attached to the permanent magnet 8.

When such a magnetic sensor is used,
Club heads made of magnetic materials such as irons can be detected as is, but magnetic materials such as aluminum and brass such as wood and putters cannot be detected.
Since club heads made of 11 metal parts cannot be detected, magnets must be separately attached to commercially available clubs. If this magnet is attached using metal fittings or the like, the club head will become heavy, and if the rubber magnet is used as a seal to remove it, it will come off during use. It had many shortcomings, such as being unable to detect low speeds when using a short putter.

OBJECT OF THE INVENTION The present invention is intended to eliminate this conventional drawback.The present invention oscillates a high frequency from a detection element, and when a metal object (dielectric object) approaches the high frequency magnetic field, the club head is detected by the oscillation state. The purpose is to be able to detect the movement of all clubs such as woods, irons, putters, etc. without the need for a special thin tube device, and to enable detection even at low speeds. This is what I did.

Structure of the Invention The present invention includes a detection element under the mat, an oscillation circuit that oscillates it at a high frequency, a circuit that detects the oscillation state of the oscillation circuit when the club moves, and a detection element that detects whether the oscillation of this circuit is stopped or attenuated. Then, it is equipped with an output circuit that immediately generates an exit signal, and a built-in proximity sensor that can detect the trajectory or speed of the club head.

DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 to 6. In addition, the conventional mat 1. Base 2゜performance η, installation N3
．． Since the signal cable 4 is the same in the present invention, its explanation will be omitted, and the explanation will focus on the portion for detecting different club head movement conditions. First, let us explain the detection function of the present invention in the third section.
This will be explained based on the diagram. A detection coil 14 serving as an edge detection element is oscillated by a high frequency oscillation circuit 15. Then,
When the rad 12 (dielectric object) approaches the swinging club in the high-frequency magnetic field emitted by the detection coil 14, it is induced into the metal of the club head by electromagnetic induction. ff current flows, and IR heat loss occurs due to the specific resistance of the metal. Heat loss due to this induced current is extracted through the detection coil 14 in the high frequency magnetic field @15.

As a result, the oscillation circuit 15 cannot detect the oscillation state, and the oscillation stops or is slightly attenuated. This signal is detected by the oscillation state detection circuit 16, and as soon as the oscillation stops or attenuates, the output circuit 17 generates an output signal.

A method of detecting the movement status of the golf club 12 based on the voltage of each detection element when the golf club 12 is swung using such a detection element 14 will be described with reference to FIGS. 4 to 6. Note that the detection element 14 is installed in a recess of the base 2 in place of the conventional detection element 6, and other high frequency oscillation circuits 151, oscillation state detection circuits 16. The output circuit 17 is installed inside the front part 2a of the base 2. Detection coils 18, 19, which are the same as the detection coil 14 described above, are installed in the base 2 in front of the ball 21 and perpendicular to the direction of movement of the club head 12 at intervals of a distance t. Also, the detection coil 18
and the detection coil 2o detect the club head 1 at an interval of a certain distance.
It is installed in the direction of movement of 2. When the club head 12 is swung, the voltage E18 waveform and the voltage E2o waveform shown in FIG. 6 are generated from the detection coils 18 and 2o. This voltage E1
If the time difference between the E8 waveform and the voltage E2° waveform is tl, then the moving speed V of the Rad 12 toward the club is V-L/11. Also suppose swing 1? The face of the club head 12
If 2a is tilted by θ degrees as shown in FIG. 4 with respect to the face 12a during accurate swing, the detection coil 19
and voltage F from detection coil 18, I9 waveform and voltage E18
A waveform is generated as shown in FIG. This is the time. In this way, the speed of the club head 12 and the speed of the club face 1 are
The angle θ with respect to 2a is essentially determined by the fixed numerical value t and the detected time values t1 and t2.

Thus, the I calculation is performed by the arithmetic unit 3, and the swing speed and direction of the club are displayed.

Effects of the Invention As described above, according to the present invention, a detection element that generates high-frequency oscillation is used as a sensor for detecting the movement status of the club head, and a dielectric object on the club head can be detected based on the oscillation state of the detection element. As a result, the movement of all clubs such as woods, irons, and putters can be detected without the need for special capillary devices.As a result, commercially available clubs can be easily used, and low speeds when putting can be detected. speed can also be detected.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a conventional golf practice machine, FIG. 2 is a cross-sectional view of sensor oil in the prior art, FIG. 3 is a block diagram of a sensor circuit portion in an embodiment of the golf practice machine of the present invention, and FIG. FIG. 6 is a plan view of the main part of the main body in one embodiment of the present invention. FIG. 6 is a time chart diagram of one embodiment of the present invention. 1...Golf mat, 2...Base, 3
Arithmetic device for..., 14.1B, 19.20...
・Detection element, 16...Oscillation circuit (signal generation section)
, 16...Oscillation state detection circuit (oscillation state detection section). Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] A golf club is provided with a club head having a dielectric object in at least a portion thereof, and a signal time change due to the movement of the club head is detected to output a signal for detecting the movement status of the club head, and the signal is transmitted to multiple locations on the base. a detecting element provided, a reporting means for reporting the movement status based on a signal from the detecting element, a signal generating section for causing the detecting element to send a signal to a dielectric object of the club head;
A golf practice machine comprising an oscillation state detection section that detects a change in the transmission state using a dielectric object of the M number generation section.