KR20040036044A - Golf club for correcting golf putting/swing pose - Google Patents

Abstract

PURPOSE: A golf club capable of correcting a golf putting/swing posture is provided to acquire a right golf putting or swing posture. CONSTITUTION: The golf club comprises: piezoelectric sensors(18a,18b,18c,18d) mounted in the head of the golf club by which a golf ball is stroked; peak holding circuits(22a,22b,22c,22d) sensing the peak values of an electric pulse corresponding to the impulse applied to the respective piezoelectric sensors(18a,18b,18c,18d), the impulse being determined by the stroke of the golf ball applied to the head; comparer(24a,24b,24c,24d) calculating the sum and difference of the peak sizes of the pulse while comparing the size of the peak of the electric pulse generated from the two piezoelectric sensors by pair; a micro-controller unit(28) calculating the stroke position of the head front surface, the angle between the golf ball and the head front surface and the traveling distance of the golf ball; and a display section(30) for displaying the output of the micro-controller unit(28).

Description

Golf club for correcting golf putting / swing pose}

The present invention relates to a golf club, and more particularly to a golf club that allows correction of the golf putting / swing posture.

Golf is a game in which a golf club is used to put a golf ball into a distant hole cup, and the player who puts the golf ball into the hole cup first with a few strokes wins the game. There are three types of golf clubs used for golf: wood, iron, and putter. Among them, wood or iron is used to hit the golf ball away, and putter is used to put the golf ball into the final hole cup for short distance. .

However, in order to hit the golf ball accurately using various golf clubs, the golf swing or putting posture must be correct, and the golf club must learn the correct swing or putting posture and the sense of hitting because it must hit the desired position of the golf club head accurately. I try hard to In general, a skilled golfer is aware of the problem of his swing or putting posture by looking at the shape of the golf ball flying, but beginners do not easily recognize the problem of their swing or putting posture. Therefore, even if the beginners swing or putt practice for a long time it may not be the correct posture, the situation that does not actually help in correct posture acquisition and correct posture.

It is therefore an object of the present invention to provide a golf club that allows to obtain a correct golf putting or swing posture.

Figure 1a shows an exploded view of a golf club head according to an embodiment of the present invention.

FIG. 1B shows a cross section of the golf club head of FIG. 1A.

Figure 2 shows an example of a circuit block diagram for putting / swing posture correction mounted to a golf club according to the present invention.

3A to 3C are views showing a hitting position when there is no putter angle.

4A to 4C are views showing the striking position in the state where the putter angle twist in the closing mode occurs.

5A to 5C are views showing a hitting position in a state where a putter angle twist in the open mode occurs.

In order to achieve the above object, the golf club according to the present invention, the piezoelectric elements are mounted in pairs in the interior of the head of the golf club to be hit, the golf club is installed in the golf club, the hitting of the golf ball applied to the head Peak holding unit for detecting the peak value of the electric pulse corresponding to the amount of impact applied to each of the piezoelectric elements determined according to the comparison, the peak size of the electric pulse generated in the two piezoelectric elements of the pair, which is installed in the golf club It is installed in the comparator and the golf club to calculate the sum and difference of the peak amplitude of the pulses, and receives the output of the comparator, and calculates the hitting position of the head front, the angle formed between the golf ball and the front of the head, and the travel distance of the golf ball. It is installed on the surface of the microcontroller unit and the golf club, and includes an indicator for displaying the output of the microcontroller unit. The.

Specifically, one surface of the head of the golf club includes a striking plate that is the main striking area of the golf ball, the striking plate is formed of the first projection and the second projection of the same shape, the piezoelectric elements are composed of four have. The first and second piezoelectric elements of the four piezoelectric elements are arranged around the first protrusion and the third and fourth piezoelectric elements are arranged around the second protrusion.

And the comparator is designed to select positive peak values of electric pulses generated in the first piezoelectric element and the second piezoelectric element, to compare the input peak magnitudes and to calculate the sum of these input peak magnitudes; It is designed to select the positive peak value of the electric pulse generated in one piezoelectric element and the negative peak value of the electric pulse generated in the second piezoelectric element, so as to compare the magnitude of the input value and calculate the difference in the peak magnitude of the input value. Designed to select the positive peak values of the electrical pulses generated in the second comparator, the third piezoelectric element and the fourth piezoelectric element, so that the magnitudes of these input values are compared and the peaks generated in the third piezoelectric element and the fourth piezoelectric element It is designed to select the positive peak value of the electric pulse generated in the third comparator and the third piezoelectric element and the negative peak value of the electric pulse generated in the fourth piezoelectric element to calculate the sum of the magnitudes of the values. It is preferable that the fourth comparator be used to calculate the difference between the magnitudes of the input pulse values while comparing the magnitudes of these input values. The golf club may further include an A / D converter for converting the output of the comparator into a digital signal and transmitting the digital signal to the microcontroller unit.

Hereinafter, a golf club for correcting a golf putting / swing position according to the present invention will be described with reference to the accompanying drawings, and in particular, a golf putter among golf clubs will be described as an example.

Figure 1a shows a golf putter according to an embodiment of the present invention, showing the disassembled head of the golf putter, Figure 1b is a view showing a cross section of the head of the golf putter of Figure 1a.

The golf putter consists of a grip 10, a shaft 12 and a head 14, like other types of golf clubs. The grip 10 is provided with a display portion 30 for displaying information about the golfer's putting / swing position. On the front face 15 of the head 14, the striking plate 16 serving as the main striking area of the golf ball 21 is divided. Triangular projections 16a and 16b are formed on the rear surface of the striking plate 16, so that the recesses 17 into which the striking plate 16 is to be inserted are recessed in two stages, and the projections 16a and 16b are The second recessed portions 19a and 19b. At this time, a predetermined space is formed between the recess portions 19a and 19b and the protrusions 16a and 16b, and the piezoelectric elements 18a, 18b, 18c, and 18d are disposed therein. The first piezoelectric element 18a and the second piezoelectric element 18b are placed between the first protrusion 16a and the recessed portion 19a, i.e., near the first protrusion, and the third piezoelectric element 18c and the first piezoelectric element 18b. The four piezoelectric elements 18d are placed between the second protrusion 16b and the recessed portion 19b, ie near the second protrusion. In order to protect the piezoelectric elements 18a-18d from foreign substances, the soft material 20 is filled in the gap between the striking plate 16 and the recess 17 of the front surface 15 of the head.

After installing the piezoelectric elements 18a-18d in the head 14 of the golf putter as shown in FIGS. 1A and 1B, the first to fourth piezoelectric elements 18a-18d are shown in FIG. To a circuit for golf putting / swing posture correction. Such a circuit may be installed inside the golf club head 14, shaft 12 or grip 10, it is preferably integrated into a printed circuit board (not shown). In order for the golfer to more easily check the posture correction information, it is preferable that at least the display unit 30 shown in FIG. 2 is provided in the grip 10 portion.

Referring now to FIGS. 2 and 3A-3C, 4A-4C and 5A-5C, the striking position at the golf putt, the putting of the head front 15 and the golf ball 21 at the striking The process of calculating the angle and the traveling distance of the hit golf ball 21 will be described.

When the golf ball 21 strikes the front surface 15 of the head 14 of the putter, an electric pulse corresponding to the pressure applied from the piezoelectric elements 18a-18d is generated by the pressure applied by the golf ball 21. The peak value of the generated electric pulse is detected by the first to fourth peak holding circuits 22a to 22d. The outputs of the first to fourth peak holding circuits 22a to 22d are input to the first comparator 24a, the second comparator 24b, the third comparator 24c and the fourth comparator 24d. The first comparator 24a is generated in the first piezoelectric element 18a and is generated in the second piezoelectric element 18b and the positive value of the electric pulse Ai sensed by the first peak holding circuit 22a. The positive value of the electric pulse Bi sensed by the two-peak holding circuit 22b is designed to be selected so that the magnitude comparison result and the magnitude of the first piezoelectric element and the second piezoelectric element are compared. The positive maximum peak value (sum (Ai + Bi)) of the high voltage pulse is output. On the other hand, in the design of the comparator, the configuration for selecting the polarity of the input value is apparent to those skilled in the art. In the same manner, the third comparator 24c generates the positive value of the electric pulse Ao and the fourth piezoelectric element 18d generated by the third piezoelectric element 18c and sensed by the third peak holding circuit 22c. The positive value of the electric pulse Bo generated at and detected by the fourth peak holding circuit 22d is selected so that the magnitude comparison result and the third piezoelectric element and the fourth The positive maximum peak value (peak sum (Ao + Bo)) of the high voltage pulse generated in the piezoelectric element is output.

Meanwhile, the second comparator 24b is generated in the first piezoelectric element 18a and is generated in the positive value of the electric pulse Ai detected by the first peak holding circuit 22a and in the second piezoelectric element 18b. And the negative values of the electric pulses Bi sensed by the second peak holding circuit 22b are selected so that the magnitude comparison result and the second comparator 24a compare the magnitudes of these input values. The magnitude difference Ai-Bi of the high voltage pulse generated in the piezoelectric element and the second piezoelectric element is output, and the fourth comparator 24d is generated in the third piezoelectric element 18c and in the third peak holding circuit 22c. The positive value of the detected electric pulse Ao and the negative value of the electric pulse Bo generated in the fourth piezoelectric element 18d and detected in the fourth peak holding circuit 22d are designed to be selected. While comparing the magnitude of these input values, the magnitude comparison result and the magnitude of the high voltage pulse generated in the third piezoelectric element and the fourth piezoelectric element from the third comparator 24c Output the train (Ao-Bo).

The outputs of the first comparator 24a, the second comparator 24b, the third comparator 24c and the fourth comparator 24d are converted into digital signals by the A / D converter 26. The output of the A / D converter 26 is input to the microcontroller unit 28 (MCU). In the MCU 28, the striking position of the head front face 15, the angle formed by the golf ball 21 and the head front face 15, and the traveling distance of the golf ball 21 are calculated. On the other hand, the MCU 28 has a function of resetting the peak holding circuits 22a to 22d.

The operation of the MCU 28 will be described in detail. When the golf ball 21 is hit at a portion closer to the first piezoelectric element 18a and the second piezoelectric element 18b than the third piezoelectric element 18c and the fourth piezoelectric element 18d, the first comparator ( The output Ai + Bi of 24a is larger than the output Ao + Bo of the third comparator 24c, which is illustrated in FIGS. 3A, 4A and 5A. Next, in the above case, the angle between the head front face 15 and the golf ball 21 at the time of hitting can be calculated according to the output of the second comparator 24b.

If the output of the second comparator 24b indicates that the peak values of the electric pulse Ai generated in the first piezoelectric element 18a and the electric pulse Bi generated in the second piezoelectric element 18b are the same, the values shown in FIG. As can be seen that the golf ball 21 and the head front 15 is at a right angle. If the output of the second comparator 24b is found to be greater than the peak value of the electric pulse Bi generated in the first piezoelectric element 18a, the peak value of the electric pulse Bi generated in the second piezoelectric element 18b is shown in Fig. 4A. As described above, it can be seen that the golf ball 21 and the head front surface 15 are in a state in which the golf ball proceeds to the inside of the golfer (closing mode) without forming a right angle, causing twist of the putter angle. The degree of twist of the putter angle is determined by the ratio of the peak value of the electric pulse Ai generated in the first piezoelectric element 18a and the peak value of the electric pulse Bi generated in the second piezoelectric element 18b. For easy identification, the difference between the two peak values is amplified by a large magnification to find the degree of twist of the putter angle. In the same manner, if the output of the second comparator 24b is found to be smaller than the peak value of the electric pulse Bi generated in the first piezoelectric element 18b, the electric pulse Ai generated in the first piezoelectric element 18b. As shown in 5a, the golf ball 21 and the head front 15 do not form a right angle but the golf ball is in a state in which the golf ball proceeds to the outside (open mode). As described above, the degree of twist of the putter angle is determined by the ratio of the peak value of the electric pulse Ai generated in the first piezoelectric element 18a and the peak value of the electric pulse Bi generated in the second piezoelectric element 18b. As determined, for easy identification, the difference between the two peak values is amplified by a large magnification to find the degree of twist of the putter angle.

At this time, even if the output Ao-Bo of the fourth comparator 24d is used instead of the output of the second comparator 24b, the above description holds.

On the other hand, when the golf ball 21 is hit at a portion closer to the third piezoelectric element 18c and the fourth piezoelectric element 18d than the first piezoelectric element 18a and the second piezoelectric element 18b, the first The output Ai + Bi of the comparator 24a is smaller than the output Ao + Bo of the third comparator 24c, which is shown in Figs. 3C, 4C and 5C. In this case, the angle between the head front 15 and the golf ball 21 at the time of hitting can be calculated according to the output of the second comparator 24b or the fourth comparator 24d and the putter angle twist mode can be found. Since is as described above, description thereof will be omitted.

When the golf ball 21 is hit by an intermediate portion between the third piezoelectric element 18c and the fourth piezoelectric element 18d, the first piezoelectric element 18a, and the second piezoelectric element 18b, the first golf ball 21 is hit. The output Ai + Bi of the comparator 24a becomes the same as the output Ao + Bo of the third comparator 24c, which is illustrated in FIGS. 3B, 4B and 5B, in which case the two As in the case, the angle formed by the head front 15 and the golf ball 21 at the time of hitting can be calculated according to the output of the second comparator 24b or the fourth comparator 24d and the putter angle twist mode can be found. It is self-evident.

On the other hand, in the microcontroller unit 28, the first piezoelectric element 18a and the first are made by using the output Ai + Bi of the first comparator 24a and the output Ai-Bi of the second comparator 24b. The peak value of the electric pulse generated in the two piezoelectric elements 18b can be calculated, and using the output Ao + Bo of the third comparator 24c and the output Ao-Bo of the fourth comparator 24d, Peak values of electric pulses generated in the third piezoelectric element 18c and the fourth piezoelectric element 18d can be calculated. The electric pulse peak value thus calculated is converted into the amount of impact applied to the piezoelectric elements 18a-18d, and the traveling distance of the golf ball is calculated based on the amount of impact. . Predicting the distance of the golf ball based on the amount of impact uses the law of conservation of momentum in the kinematic system of the golf ball and the golf putter, but the actual golf club is used because it considers various variables such as the condition of the grass, the slope, and the humidity. The relationship between the amount of impact of the golf ball and the distance traveled by the golf ball is obtained and then used.

On the other hand, it will be apparent to those skilled in the art that the circuit for performing the operation of the MCU 28 described above can be implemented using known techniques.

The hitting position at the time of golf putt, the putting angle between the head front 15 and the golf ball 21 at the time of hitting, and the traveling distance of the hit golf ball 21 calculated by the MCU 28 by the above-described method are usually used. The display unit 30 is transferred to and displayed on the display unit 30 formed of an LCD or an organic EL.

In the above embodiments, the number of piezoelectric elements is limited to four, but the present invention is not limited thereto, and may be formed of two piezoelectric elements, and may be formed of six or more even piezoelectric elements. In the case of six or more piezoelectric elements, the sum of the electric pulse values generated from the paired piezoelectric elements will further add a circuit for size comparison.

Meanwhile, the present invention has been described with reference to golf putters of the golf club, but the present invention is not limited thereto, and the piezoelectric element and the piezoelectric element described in the present application specification are installed on the head of the iron to help correct a golfer's posture. Can give

According to the above description, the golf club according to the present invention is provided with at least four piezoelectric elements in the head portion, using the electric pulse value generated by the piezoelectric element, the hitting position of the golf ball, the degree of twist of the golf ball and the golf By knowing how far the ball is moving, it is expected that it will help the golfer to acquire the correct putting / swing position and correct the wrong position.

Although the configuration and principle of the present invention have been described so far, the present invention is not limited thereto, and various embodiments which can be modified and changed within the true spirit and scope of the principles described and claimed in the present specification are within the protection scope of the present invention. It should be understood that it belongs.

Claims (4)

Piezoelectric elements mounted in pairs in the head of the golf club where the golf ball is to be hit, A peak holding part installed in the golf club, the peak holding part sensing a peak value of an electric pulse corresponding to an impact amount applied to each of the piezoelectric elements determined according to the hit of the golf ball applied to the head; A comparison unit installed in the golf club and comparing the magnitudes of peaks of electric pulses generated in two piezoelectric elements in one pair, and calculating a sum and a difference of the peak magnitudes of the pulses; The microcontroller unit is installed in the golf club, and receives the output of the comparison unit, and calculates the impact position of the front of the head, the angle between the golf ball and the front of the head and the travel distance of the golf ball; The golf club is installed on the surface of the golf club including a display unit for displaying the output of the microcontroller unit. The golf club according to claim 1, wherein one surface of the head of the golf club includes a striking plate serving as a main striking area of the golf ball, and the striking plate has a first protrusion and a second protrusion having the same shape. The piezoelectric element is composed of four, wherein the first and second piezoelectric elements of the four piezoelectric elements are disposed around the first projection and the third and fourth piezoelectric elements are disposed around the second projection. 3. The apparatus of claim 2, wherein the comparing unit is designed to select positive peak values of electric pulses generated in the first piezoelectric element and the second piezoelectric element, thereby comparing these input peak magnitudes, and adding up the sum of these input peak magnitudes. A first comparator that calculates a value, and is designed to select a positive peak value of the electric pulse generated in the first piezoelectric element and a negative peak value of the electric pulse generated in the second piezoelectric element, thereby comparing the magnitude of the input value. And a second comparator for calculating the difference between the peak magnitudes of the input values, and to select the positive peak values of the electric pulses generated in the third piezoelectric element and the fourth piezoelectric element to compare the magnitudes of these input values. A third comparator for calculating a sum of magnitudes of peak values generated in the third piezoelectric element and the fourth piezoelectric element, and a positive peak value of an electric pulse generated in the third piezoelectric element and the fourth; Of the electrical pulse generated in the element (-) it is designed to select a peak value, a golf club made by comparing the size of these input values a fourth comparator for calculating the difference between the size of the input pulse value. The golf club according to claim 1, further comprising an A / D converter for converting the output of the comparator into a digital signal and transmitting the digital signal to the microcontroller unit.