TW200932310A - Hitting position detection device, hitting position detection method, and method for manufacturing golf club for detecting hitting position - Google Patents

Abstract

A hitting position detection device includes a golf club including a shaft having a grip portion, a head portion including a face portion having a hitting surface, a backside surface, and at least three light leading holes, and attached to the distal end of the shaft, optical sensors arranged at the backside of the face portion while being aligned with the light leading holes, fixed to the head portion, and outputting an electrical signal depending on light intensity, a calculation unit receiving the electrical signal output from the optical sensors, calculating a centroid position of some of the light leading holes in which decrease in light intensity is detected due to a ball when the ball is hit, and outputting the centroid position as a hitting position signal, a display unit displaying a hitting position in the face portion based on the hitting position signal output from the calculation unit, and a power supply supplying electrical power to the optical sensors, the calculation unit, and the display unit.

Description

200932310 IX. INSTRUCTIONS: TECHNICAL FIELD OF THE INVENTION The present invention relates to a striking position detecting device, and more particularly to a device for correctly understanding the striking position of a club face of a golf club head, A striking position detecting method and a method of manufacturing a golf club for striking a position detecting. [Previous Art 3 Background of the Invention So far, an important matter that practitioners and beginners must care about is to understand the position of the golf ball used for practice, that is, the touch surface of the club head (also called the club face, the club face) Where to contact the ball, as well as to combat stress and blow angle. Therefore, a sensor or a transducer (a component that converts a physical quantity into an electronic 笊15 and outputs it, in a broad sense, can convert an energy form into

The "energy form" is observed by a display such as a monitor (monitor), and is a long-awaited expectation of golf players. 20 The ancient method is unclear, and only the abstract attached sensor and display device is limited to the expectation (4) invention. The specific concrete technologies and methods of _ (the subject) have no clue. Therefore, although there are many proposals, the technical problems that have not been solved for a long time have been put on hold and never realized. The sensor that is placed in what is limited, and specifically what kind of function, should be assigned, and the calculation of the virtual / _ timing for which job to obtain f material, how to enter the "calculation process" in what display form, Form, how to display it, 5 200932310 Whether it can be revealed by the specific experiments such as experimental verification, it is also very lacking. Another method of shooting with a south speed camera, not only the equipment is very big and very expensive, each picture In the relationship between the sensitivity of the extremely short shutter time, the light of the brighter 5 is also required. In addition to the problem of glare, the front side must be shot by the hitting ball and the ball is flying from the front, so the photographer is in danger. The environment must also protect the camera from damage, and there are various major drawbacks. As far as the inventors are aware, the method of detecting the position of the hitting ball can be attached to the head with a pressure-sensitive color-changing paper. The discoloration of the paper gives you a way to know where the ball is in contact. It is inconvenient in addition to the peeling of the paper on the club face of the club. There is also a major disadvantage of changing the impact of the sticker due to the sticker. Patent documents 1, 2, 3 An accelerometer is installed on the golf club head, a bending stress meter is installed on the shaft, a deformation gauge is displayed, and the display is displayed on a remote monitor (display device: specific example: an oscilloscope). These measurements were taken during the continuous swing and attempted to be displayed but which part of the club face was not successfully displayed. Moreover, these patents have cited most of their previous patents and determined that the above expectations have existed for a long time. In Patent Document 4 and the like, an accelerometer is arranged in a vertical direction in the head of the head, and 20 compares the previous data signal with the actual signal, and presumes where to hit the club face, but does not specify the ball. In fact, there are differences in strength, weakness, rotation, type of ball, manufacturer, etc., as well as temperature difference, poor staining, 'temperature difference, etc., and only by accelerometer is not enough to think that the successful stage has been reached. Patent Document 5, although a single basis has been proposed The graph of the relationship between the attenuation of the acceleration sensor 200932310 (transducer) and the preliminary test result of the attenuation of the acceleration and the flight distance is displayed on the liquid crystal display (lcd). The light-emitting diodes take the technology's but the display of the hitting position has not been successful. The special-distribution of the 6th 'has recorded the practice machine based on the sweet spot, and proposed 5 special light sources for the outer material, and the system has a system The rubber plate is used as a substitute for the ball, and the club face is provided with a hole in the center of the sweet point of the club, and the back side (inside = inside the club head) is provided with a light receiving element, only in the correct swing 〇 _, special light The light-receiving element will pass through the hole of the rubber plate, so the signal will be confirmed by the internal communication mechanism (sound, light, etc.), and both the internal and external parts will be added to the design concept. A power generating element is provided in the face of the club, and when it is properly contacted with the ball, it will reach the external light receiving element, so that it is known that the swing has been correctly performed, and other details have exceeded the understanding of those skilled in the art. In the course, the above-mentioned external devices (designs) have major drawbacks such as the installation of 15 methods. © Patent Document 7, it is proposed to provide a cavity in a golf club head and fill it with a polyurethane foam, and then display it on a CRT (Brown Tube) using a transducer to determine the effective range of impact. Technology, but it is the sweet spot of the above-mentioned modified products, and it is considered that the sweet spot of the non-modified products is far away from the other. Patent Document 8 discloses a method in which the position of the structure can be obtained from the sound of the structure. The specific hit position by the sound of the club was not successful. In Patent Document 9, it is proposed to provide a magnetic sensor under each disposal ball position of the self-help driving range, and then analyze the 7 200932310 ° Han number generated by the metal movement caused by the swing, and measure the head speed and swing. The method of the trajectory, the face angle, and the like. This chip is designed under the ball to be hit, and is affected by a variety of different club types. It is difficult to make the data of each strike position clear. The above design is too large and not simple, so it cannot be said that it has been successfully specified. Strike the position. The magnetic 5 sensor is not in the club but is located outside and cannot be measured outside of a specific location. In the patent document, a method of selectively arranging the conductive electrode portion and the pressure-sensitive impedance measuring portion in a concentric circular shape to obtain the force and position of the hitting moment is proposed. Although it can be used for the pitching practice of golfers and the measurement of golf and other sports, the impact of golf strikes is an alarming high pressure, and should be placed where it is located. If it is placed outside the club head, the durability is poor. Internally, the impact will be less pronounced due to the face sheet metal, with the above-mentioned major drawbacks. In particular, the specific location of the strike was not successful. Patent Document 11 discloses the concept of installing a pressure sensing device for a golf club and displaying the information about the ball at an appropriate place or location by a microcomputer. In particular, it is described that the pressure sensor fixed to the lower part of the shaft can measure the striking force value and add a brief. This is similar to the disclosure of the patent document 丨~3, and the striking position is not successfully determined. In Patent Document 12, the pusher is detachable (the wood is the inner type), and the transducer 20 is disposed on the club face, and it is known where the position of the club face is in the width direction, and the ball is directly contacted. And hitting, can not tolerate the repeated application of the amazing high impact value (for example: 1 centimeters), and has this major drawback. Further, the position on the club face is limited to the width direction of the club face (the position of the toe side or the heel side of the club face in the up and down direction (4) is unclear, 200932310. This is a disadvantage. Patent Document 13 proposes multiple points. It is equipped with a light sensor and has a light-emitting device, which can judge the technology of contact with it because of its light emission. The display of the same place may also have the disadvantages of being difficult to carry out, poor durability and weight increase. The process of the display is not clear in detail. 专利 Ο Patent Document 14 discloses a golf swing evaluation system that can display the maximum striking force and the striking position on the display unit, and the purpose of achieving the goal is extremely small, and the patent is applied. The description of the scope is similar to the nature of expectation. The specific example reveals that the configuration of the inductance detector is also disclosed by the relationship between voltage and time. The other end of the grip is provided with a display portion in the grip portion. As for the watch, it has also been revealed. From the viewpoint of durability and correctness, it cannot be regarded as a strike position display. Patent Documents 15 and 16 are described in the club. The face forms a hole, the fiber is bundled into the shaft, and the discriminating part is used to unfold the technique. The light b fiber is used, so there are the towns and villages: (1) the weight field is private, and (2) the fiber is easily damaged, and it is easy to cause It is extremely difficult or impossible to reverse the impact of the impact. (3) It is extremely difficult or impossible to work in the bundle of optical fibers. Even if it is slightly thicker, it is time-consuming and labor-intensive. (4) It is easy to change the accuracy when it is bundled, (5) There is a space limitation on the body, and it is virtually impossible to achieve multi-branch, etc. 20 In the paste document 17, in addition to the above-mentioned expectation, the "contactor" having the outer surface to the inner surface of the club face of the golf club is specifically disclosed. And having a plurality of (arranged in a square lattice) contact unit (rubber) disposed on the inner surface. Once the ball is touched, the contactor is pressed and the contact is energized to display the result on the display device. Generally, 'and the position is detected. The multiple contactors will be operated simultaneously with the hit 9 200932310's, but the calculation is how the calculation can be correctly displayed. It is not clear, and it is not specific, and the durability is also a problem. In the patent document is, it is disclosed that it uses the above patent (4) The basic concept and the technique of Patent Document 14 are analyzed using the peak value 5 of the impact force or the elongation force to perform a more delicate and limited performance, and the multi-sensor is applied to the head to detect the impact force, and the display is performed. The technique of impact force and the direction of movement of the ball (equivalent to the right curved ball and the left curved ball). The specificity of the striking position is not clear. Patent Document 19 discloses that the piezoelectric 10 film composed of a plurality of sensing elements is adhered to The club face and the technique of forming a cross-array or an eccentric circular shape of the sensing element. Patent Document 20 discloses that a detecting mechanism such as an impact sensor that can detect the position of the touch of the head is plural and displayed. The display mechanism such as the liquid crystal display mode and the lighting display mode of the touch position is set on the shaft of the shaft, and the expectation of the flight distance of the ball based on the position of the ball is understood, but it also has the concept of Watanabe. The same problem. 0 Patent Document 21 discloses a technique in which the position of the sensor is specified by the sound, and the sensor is particularly arranged in a concentric shape. [Patent Document 1] USP 3,270,564 20 [Patent Document 2] USP 3,792,863 [Patent Document 3] USP 3,806,131 ' [Patent Document 4] USP 3,945,646 [Patent Document 5] USP 4,088,324 [Patent Document 6] Bulletin No. 56-31766 10 200932310

10 15

[Patent Document 7] Japanese Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. [Patent Document 12] US Pat. No. 6,1098, 390 [Patent Document 13] Japanese Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. [Patent Document 21] JP-A-2004-81407 SUMMARY OF THE INVENTION [Disclosure of the Invention] [Problems to be Solved by the Invention] An object of the present invention is to provide a practical technique that can be industrialized without any of the above disadvantages. In addition, in particular, the shortcomings of the biggest problem of improving the mutual contradiction between weight reduction and precision have not been solved, and at the same time, the method of simultaneously solving the problem of multiple trade-offs is simultaneously solved. The trade-off between such trade-offs is not clear and unresolved in the well-known literature. Therefore, it is necessary to provide an invention that can be marketed. 11 200932310 The main problems that should be solved in particular are as follows, and many other purposes can be understood in the detailed description. That is, the parts that have not been achieved in the past proposals have been improved, greatly improved, and practical. () can actually display the position of the ball correctly and obtain its proof and confirmation. (7) It can capture the moment of attack (not the data at the time of the swing and after the strike). (3) The true disclosure of the method or calculation of the position. (4) 1⁄4 amount (weight reduction, also includes power supply unit). (5) Can be small (set in the club head). (6) Can withstand repeated impact (durability). 1〇 (7) The correct position (accuracy) can be displayed within the practical accuracy range. (8) Less power (power). (9) The production cost is not high (industrial feasibility, stability, and reproducible economy). (10) It does not impose an operational burden on the user (easy to maintain and easy to see, easy to use, re-set, adaptable). (11) The quality of the finished product is good, at least not difficult to distinguish (quality sense). (12) The number of inspection departments is small. (13) External, that is, the ground side does not require special design settings. (14) The results are easy to discern. 20 (15) can save electricity. (16) The inaccuracy of the results can be restored. The present invention aims to balance the above various comprehensive projects. In particular, solutions to the problem of industrial implementation possibilities can be provided. [Means for Solving the Problem] 12 200932310 In order to solve the above problem, the present invention can provide a striking position detecting device comprising a two-armed club including a shaft having a grip portion and being mounted on the foregoing a head portion at a front end of the shaft having a club face having a strike surface and a back surface and having three or more light guide holes; a plurality of light sensors, wherein the 5 series are respectively disposed on the club corresponding to the light guide holes The front side of the face is fixed to the head of the rod and transmits (4) an electronic signal of light intensity; the calculation unit receives the electronic signal output by the plurality of light sensors, and calculates the foregoing when hitting the ball The position of the center of gravity of the light guiding hole that has been dimmed by the ball is detected in the plurality of light guiding holes, and is output as a striking position signal; the display portion is displayed according to the striking position signal output by the calculation unit, and the club is displayed. And a power source for supplying power to the plurality of photo sensors, the calculation unit, and the display unit. In the above-described striking position detecting device, the calculating unit may preliminarily store, in advance, each coordinate value of the plurality of light guide holes according to the "vertical coordinate" set on the striking surface of the club face and Let the weight be -, for the light guide hole that has been detected to be dimmed by the ball, by using: (Xg, yg) = ((x 丨 + x2 + x3... + Xn) / n, (y 丨 + Y2+y3...+yn)/n) is used to calculate the coordinates (Xg, yg) of the position of the center of gravity. The striking position detecting device may be further attached to the head portion 20 and detect the impact shock to the aforementioned calculation. The part outputs a shock sensor of the striking signal, and the position of the center of gravity can be calculated by using the striking signal as a trigger signal. In the striking position detecting device, the display unit may be on the pattern diagram of the rod head. The hit position is displayed by a predetermined symbol. In the above-described striking position detecting device, the display unit may have a function of flashing the symbol. In the striking position detecting device, the display unit may be disposed on the shaft. Near the aforementioned grip portion. The above-described striking position detecting device may further include: a transmitting unit that wirelessly transmits the electronic signal output by the plurality of photo sensors; and a receiving unit that is separately provided from the club and receives the electronic signal. The calculation unit and the display unit are also disposed apart from the golf club and connected to the receiving unit. 10 In the above-described striking position detecting device, the rod head may be a hollow head, and the plurality of photo sensors are The striking position detecting device may be filled with a solidified material inside the rod head. The striking position detecting device may form at least 4 15 or more light guiding holes. And each of the light guiding holes may be disposed at an intersection of the square lattices. In the above-described striking position detecting device, the light guiding holes may be formed at least four or more, and are arranged at regular intervals in each column, and between adjacent rows. a staggered arrangement configured to form a position that is only offset by 1/2 of the aforementioned interval. At least a part of the shaft and the rod head may be covered by a power generating element, and the power generating element is electrically connected to the plurality of photo sensors and the display unit to supply at least a part of required power thereto. The above-mentioned striking position detecting device may further have an acceleration sensor installed on the golf ball 200932310, and configured to detect the complex photosensor when the acceleration measured by the acceleration sensor exceeds a predetermined value. In the above-described striking position detecting device, the calculating unit may have a memory function for storing the striking position signal, and may be configured to display a past striking position on the display unit in response to a request. In the detecting device, the plurality of light guiding holes may be filled with a light transmissive material. The present invention can also provide a striking position detecting method, comprising the following steps: using a golf club for hitting a ball, the golf club comprising a shaft having a grip portion and a head mounted at a front end of the shaft body a club head having a club face portion including a strike surface and a back surface and having three or more light guide holes, and is disposed on the back surface side of the club face portion corresponding to each of the light guide holes and fixed to the club head portion a plurality of photosensors for measuring light intensity of each of the light guiding holes; calculating a position of a center of gravity of the light guiding hole that has been detected by the ball in the plurality of light guiding holes, and outputting as a striking position signal; and according to the striking position A signal indicating the striking position of the aforementioned club face. The present invention can also provide a method for manufacturing a golf club for striking position detection, comprising the steps of: forming three or more light guiding holes on a club face having a striking face and a back face; and on the back side of the club face A plurality of photosensors that output electronic signals corresponding to light intensities are disposed at positions corresponding to the respective light guiding holes, and are fixed to the rod head. In the above manufacturing method, the step of fixing the plurality of photo sensors to the head of the rod 15 200932310 may further include the step of: bonding a rubber pad having a hole in a position corresponding to each of the light guiding holes to the club face The back surface; and the above-mentioned plurality of photo sensors are bonded to the rubber crucible using an impact resistant adhesive. 5 [Effects of the Invention] (1) It is possible to provide extremely good information (strike position) to the combat practitioner. (2) The strike position can be known without any design on the ground. (3) There is no need to set up an external device.

(4) There is no need to affix a piece of pressure sensitive paper, (5) can be implemented for rental. Increase the usage rate of the golf driving range. (6) Although the opening is provided on the face of the club, it is filled with a transparent material, so that it is hardly noticeable in appearance. (7) It can increase the fun of practice (improve training efficiency, change play, music, slogan, progress). (8) Can reduce battery replenishment. (9) It is easy to visualize the striking position.

〇〇) Lightweight and similar to clubs without such machines. (11) Promote the mediation of advertising. 20 (12) Can be satisfied by the secret possession. To improve the non-public superiority and to make a simple explanation of the drawing. Fig. 1 is a diagram showing the arrangement of the multi-longitudinal square rotation set on the club face 4 of the club head used in the invention of the present invention. Figure 2 is a view showing a more excellent golf club rod 16 used in the present invention. 200932310 The square lattice arrangement of a plurality of holes provided on the club face portion of the head is opposite to the staggere (j ajTangement) For example, the third picture is a clear and easy-to-understand relationship between the acceleration sensor, the impact sensor, the optical sensor, and the command processing time of the camphor. Figure 4 is a diagram illustrating the angle between the club face and the ground (4). Figure 5 is a wheel that will take the ball/ballless sensor when taking various club face angles. Fig. 6 is a schematic view showing an embodiment of the striking position detecting device of the present invention. Fig. 7 is a view showing an embodiment of the striking position detecting device of the present invention. Fig. 8 is a schematic view showing another example of the embodiment of the striking position detecting device of the present invention. ❹ ®9® shows an outline of another embodiment of the striking position detecting device of the present invention. ' [ :=ΦΓ 】 [The best form for implementing the invention] 20 ^Invention - A golf club for combat position detection practice, with more than three holes on the face of the golf ball of Gore - Ball # The back (inside) is provided with a diaphragm and is provided with a sensing part (impact sensor or twist sensor) that can recognize the impact (impact). (The time when the ball touches the face is considered to be within the micro-cedar Within the scope of the present invention, it also includes the sense of light that can be regarded as a substantial number of holes that reduce the light from the outside due to the hitting of the ball. After that, the processing unit (the calculation formula of 2) is used as the microcomputer unit of the calculation function software circuit; 』, the display portion of the approximate shape and the striking position of the face is displayed, and the power supply unit is displayed. 5 Here, the sensor is The transducer is equivalent to converting the physical quantity of other bending (bending) into electrical quantity, but the ball begins to touch the surface of the club ^ instantaneously, to a very short time between separations, it must be determined that it must be measured as light Physical quantity ^

If the non-ball touches the club's face, only 10 will get a lot of meaningless data before hitting and hitting, and the data is completely useless. Here, the "center of gravity" calculation software used by the microcomputer to determine the position of the strike can be used for the vertical axis X, y, where the light has been attenuated by the complex number n (n = 1, 2, 3, 4... the position of the hole is (xn, yn ), and let each weighting be uniform, and calculate the position of the center of gravity (Xg, yg) by the following formula, 15 (xg> yg) = ((xi+X2+X3-+xn)/n, (y1+y2+y3. ..+yn)/n)

It is also treated as if the ball has hit its center of gravity. Without being limited to the above, it is apparent that the invention can be correctly displayed in many experiments, but it is unexpected. The impact of the nlf ball hits... In general, if it is a professional golfer 20', it will withstand a high pressure of 1 ridicule per square centimeter. When the ball touches the club face P and then leaves, the paV is of course affected by the play. , but about 5 (8) microseconds or so. In the present invention, this point is particularly emphasized and is utilized ingeniously. In order to carry out the experiment, the inventor first made a hitting machine (attacking the automatic machine). Thus, because of the correct mechanism, the position of the hitting position has been confirmed by the disc. 18 200932310 5 Ο 10 15 20 1~2mm. By posting a commercially available hit verification film, you can investigate the color change position and confirm it repeatedly. Even if the impact test piece is attached (even if the paper can also pass through the low light, it can be measured, but the part corresponding to the hole of the club face is dug. Empty) also represents a color-changing mark of the same position, and is reproduced in the same position. In addition, although it is a ball made by a machine, there is still a ball of deformation, so even if the strike position is the same, it is not necessary to all fly in the same direction. With regard to the present invention, the above-mentioned calculation methods are all turned over in the above-mentioned anti-automatic machine, the commercially available impact, and the verification result of the similar product of the scorpion mounted on the head. There are no exceptions in the scope of the experiment, and it is quite amazing to correctly detect the results of the hits. Here, the method called 'center of gravity' (also known as "calculus") has proved to be very correct. The method is as follows: as shown in the above calculation, since the load must be tolerated and the measurement must be completed in a very short time, the sensing unit must correspond to the above two. The response speed of many published sensors and how to withstand _ diligence and action are completely unclear. If you do not try to implement it, you can't understand it. Moreover, for the great impact, whether it can be acted upon according to the schedule, if you do not try to implement the county can not add. The date of this (4) silk is completed in the results of repeated experiments. The above-mentioned method of re-calling is blocked because the light is only blocked when struck, and is different from the object of quality, and does not have "weight". Therefore, it is not the "center of gravity" of the true meaning, but the method is extremely touching, so it is called here. It is expressed in the form of "center of gravity". The hole provided in the face of the club will be filled with dust. Therefore, it is necessary to first fill the polymer or glass analog with a certain degree of light transmission of 19 200932310 or a rubber-like substance (viscoelastic material). Since the combat pressure is quite amazing, it is not appropriate to open a large number of holes in the club face. However, in order to correct the specific strike position, it is generally required to be 3 holes or more. The more holes, the higher the accuracy of the judgment, but the 5 parts of the club face are also weak. Sound and rebound performance will also change. This creates a two-phase contradiction. The limits of accuracy will be clear from the description below. The size of the hole is inversely related to the light transmission. The smaller the hole, the weaker the light transmission. On the contrary, the intensity and sound will change excessively. Other matters, solutions, and the like should be explained in the following order. (10) The present invention also provides a "manufacturing method" for smoothly implementing the first invention. That is, a method for manufacturing a practice golf club capable of detecting a striking position includes the steps of: providing a hole of 3 holes or more on a face surface of a golf club, and providing light sensing connected thereto at a back surface thereof And set the sensing part (impact sensor, twisted or bent 15 sensor) that can be subjected to the action of impact and impact. The setting includes the fact that it can be regarded as having hit the ball (the ball blocks the hole, and thus the reduction The "center of gravity" of the plural hole of the light (the position calculation method according to the definition of the description described later)) The microcomputer of the calculation function software that is processed by the hit, and the display portion that can display the approximate shape of the club face and the striking position The method of attaching the power supply unit. It is preferred to produce in the above manner. 20 Here, the "center of gravity" calculation function software can set the amount of light to a certain value or more for the vertical axis x and y, and set the position of the reduced n-hole (n = 1, 2, 3, 4...) to be (xn). , yn), and let each weight be uniform, by the following formula, the position of the center of gravity (xg, yg) (Xg, yg) = ((xi + X2 + X3 ... + χ η) / η, (Υι + Υ 2+ γ3. .+Υη)/η) The present invention is provided with an impact sensing portion that detects the initial vibration (impact) of the club face and detects the point at which the hit is started, and the circuit that causes the photo sensor to start measuring the driving The practice golf club can be used to detect the position of the strike. The setting of the time when the photo sensor starts to measure the Dong drive is an extremely important matter in the invention of the present invention. 5 The light measurement time may be approximately 500 microseconds or so when the ball touches the club face, so it must be measured during the contact period, so the detection of the impact sensor requires a very fast response. The important point here is that the impact sensor 0 acts immediately after receiving the impact (such as 100 microseconds after the impact), and the light sensor must act before the ball leaves the club face. If the ball is flying away, 10 "light sensor" is starting to measure, it is too late. Fortunately, the impact sensor used in this experiment can be reacted below 100 microseconds and can be confirmed. Therefore, using the above method is a milestone in the new era. That is to say, in other words, it has been found that the light sensor can be driven while the ball touches the club face, and the fact that the amazing use value of the light dimming is extremely high can be measured and used. At the moment of the face of the club, the Q-ray measurement can capture the dimming of the hole blocked by the ball, and the information of the target is used to calculate the position of the target's striking center. Finally, the target's striking position is successfully captured. A fast-acting impact sensor (generalized) and a light sensor must be selected, and the selection of them is also important. The point of impact includes the detection of the impact sensor (at least - 1). The impact sensor can be a sensor that can detect the vibration (impact) of the club face. It can also be a sensor that can detect the distortion or bending of the shaft shaft. Here, it is called an impact sensor to represent the whole. The broad range of impact sensors consists of a wide variety of classes. However, among the limits known to the inventors of the present invention, most commercially available sensors have no record of the speed of response, or lack of a record of the response speed of microseconds. However, after learning the present invention, the relevant industry can test and compare according to the purpose, and make a selection. 5 Further, the present invention is a practice golf club capable of detecting a striking position, and is provided with a light sensing portion, a microcomputer, a display portion, and a power supply portion on the club face of the opened golf club and the back of the club face. Among them, the "·" point display or the "+" type plus display, the "X" type X display or "〇", 10" can be substantially displayed on the graphic or image of the club face corresponding to the golf club. At least one of the symbols selected in the graphic display of the "Yu" and "Factory" type is lit, and the center portion of the hitting ball is used as the display portion. Moreover, it is also possible to combine them. The vicinity of the grip of the shaft is a small display that does not cause obstruction, so it is extremely easy to judge and is extremely important. According to the present invention, there is provided a golf club for practice which can detect a striking position of a display unit having a "flicker" function when the display position or the symbol is displayed. Further, it has been found that the display portion is small, but it can be changed more easily by blinking. In addition, if it is red (display color), it will not flash or non-flicker, and the discrimination performance will increase several times and it will be easy to discriminate (easy to discern). 20 The present invention relates to a golf club for practice in which the accuracy of the striking position display is improved, wherein the hole on the face of the striking face is at least 4 holes or more, and the arrangement of the holes is substantially disposed at or near the intersection of the square lattice. . The arrangement of the optical holes is based on the center of the sweet spot, and is generally arranged in a concentric shape (corrugated shape). This method has a three-dimensional chaos or boundary of the sensor (the boundary between the air and the space 22 200932310), manufacturing difficulty, The position determination calculation is more difficult than the serious ones. The present invention has been experimentally found that a sufficient number of sensing portions can achieve sufficient determination accuracy. This is based on the experience gained by those who have gained experience. The configuration example is shown in Figure 1. 101 series head shape, 102 series club shaft lower end '103 system club face, 104 (circular part) refers to the hole set in the club face 103, 105 is easy to determine the hole configuration and reluctantly The dashed line of the dotted line 'grid line 105' is only helpful for understanding and easy to explain. In the experiment described later, the interval of the 'lattice (hereinafter, represented by 2D) is 16 mm as an example. In order to facilitate the description of the mineral tooth configuration described later, the broken lines are arranged at intervals of half (D). In the example of Fig. 1, the actual club face is not square, and from the top, the second column can be additionally provided with one hole on the left and right sides and is 16 + 2 = 18 holes. When the hitting position is set, the "center of gravity" formula of the unique expression method of the present invention is followed, and the calculation result is the center of the hit. The number of holes corresponding to the actual head should be 9 to 61, and 11 to 27 is preferable, and 14 to 18 is the best. That is, it is as follows (1), (2), (3), (4), (5). This greatly avoids errors in the number of holes. 2〇 (1) For the reaction of a single photosensor, the hole is determined to be the striking position. (2) For the reaction of the light sensor of the two holes, it is determined that the middle position of the two holes is the striking position. (3) For the reaction of the three-hole photo sensor, it is determined that the triangle with the apex of 3 points is outside the center of the circle. 23 200932310 (4) For the reaction of the four-hole photo sensor, it is judged that the square with the four points as the apex is connected to the center of the circle. (5) Then, in response to the light sensor of the N-hole, the "center of gravity" referred to in the present invention is determined as the striking position according to the center of gravity calculation method. 5 In Figure 1, when the circle (1〇6) is larger than the ball, it will not touch any holes (no holes will be dimmed), so it is the smallest contact circle in the sense that it cannot be measured. When the diameter 107 is set to R, it can be calculated as R =, 2x2D. Further, the present invention is a golf club for practice in which the accuracy of the striking position display is improved. The hole on the face of the striking face is at least 4 holes to 10'. The arrangement of the holes is substantially at or near the intersection of the square lattice. For an odd column, the even number is offset by a half cycle and is in a staggered arrangement. The configuration example is shown in Figure 2. The zigzag arrangement in the present invention is such that the number of holes is reduced, and the position determination accuracy is further improved, and the lattice-like hole arrangement is improved. Figure 2 shows the status. A modified example of the arrangement has been shown in Fig. 2. 201 series head shape, 202 system club shaft lower end, 203 series club face, 204 is set in the hole of the club face 203, 205 is a dotted line that is easy to determine the hole configuration and barely set, circle 204 represents The function of the hole, the dotted line of the grid 2〇5 is limited to help understand. Each of the holes 204 is offset by a half circumference for each column of the head. 20 Here, a jagged name is used. The 206 series has a three-corner apex with a three-hole apex, and the 207 is a diameter (R). In other words, 'the minimum detection radius'. Can be calculated as R = 2.5D. Therefore, it is confirmed that the degree can be increased by 12% (2 into 2 to 2.5)/2, 2". The above relationship can be said to be the same even in the detection error of the hit position. Here, the shape of the saw 24 200932310 can be either a column or a row, and the reference lines of the rows and columns can also be inclined. And it should be easy to understand even if it does not strictly follow the one-half offset of the interval. That is, even if it is slightly "offset", it is possible to send a good effect (4), and the degree of the offset is not limited. 5 ❹ 10 15 ❹ 20 For example, in the case of a zigzag configuration, the offset of the grid is 8 ways. The improvement effect is also amazing, and it is a new understanding. It is also an amazing new understanding that can be understood by experienced people. The present invention relates to a striking position detecting exercise ball including a power generation function, in which at least part of the shaft or the head of the club is covered with a power generating material and connected to supply a sensor or The power supply of the sensor or the power supply of the display unit. It can be achieved by attaching a roll to the upper face and shaft of the club head. Some people are used to sending golf club bags directly from a country club to another country club. Therefore, there may be many people who forget the battery. To avoid this, it is extremely important to extend the life of the battery or battery. Recently, the performance of light-receiving film has been greatly improved. Therefore, if a solar cell (mostly a film) is attached to the surface of the club shaft or attached, the battery can be omitted. Golf is an activity carried out in a bright place, so it is easy to protect the light source. Moreover, the present invention also includes a power-saving practice club that can detect a striking position, wherein, in addition to other functions, a sensing portion that can form a measurement state by swinging a club is provided, and an image that can be disappeared Reset the button to reset. It is preferable to cause the acceleration sensor provided in the club to detect the swing by swinging the club, and to eliminate the previous display screen to form a measurement state. Thereby, the measurement state can be automatically formed even if the switch or the like is not pressed one by one. 25 200932310 However, sometimes I also want to reply to the previous bear. The experiment using the club of the present invention is the first time private _ does not pay attention to the swing, including the memory material, presses the weight alone, at 7 o'clock, the present invention also includes ~T to restore the picture. In the second! In the example, there is an increase in the sensor and the impact sensor capsule. Therefore, the main part of the invention may be misunderstood and the use of it is contrary to the use of the method, so that the understanding curve of the time (4) is predicted. (Fig. 3) will be explained. The vertical axis represents the voltage of the sense of rotation and the horizontal axis represents the time pumping. It is to help understand the method of sensing H relative to the swing (four) method. In Figure 3, the 4th 301 series sensor's wheel voltage sleeve, the symbol 3〇2 represents the time axis, and the symbol 303 represents the microcomputer's self-inductance sensor input voltage symbol 304 represents the acceleration sensor voltage curve symbol 3 〇5 represents the measurement start determination reference voltage.

10 (1) First, start the swing. (2) The output voltage (3〇4) of the uranium acceleration sensor will rise, so check the time.

(3) Once the voltage reaches point 305 of Fig. 3, the switch at the start of measurement (306) is turned on. After the decision is made, there is a time difference, and at time 312, input 0 (4) The photo-sensing device starts to operate (303). The impact sensor also begins to act 20 (307). (5) The ball begins to strongly impact the face of the club head (the naked eye is not noticeable, but the ball may gradually break the deformation). The output voltage (307) of the impact sensor will change. That is, a hole (photosensor) somewhere is covered by the ball to reduce the amount of light, and the voltage starts to decrease. The impact sensor continues to operate. The voltage continues to rise. When a certain value is reached, 26 200932310 (308), the microcomputer judges. This is called the hit time point (3〇9). (6) The microcomputer will receive this value (3〇8). (7) The microcomputer will be turned to the position detection state. Although it is extremely short, it still takes time. 5 (8) Then, read the output voltage value of the photo-sensing device (311) before the ball leaves the club face. Light will no longer enter the covered holes and will be detected. This is called the light transmission detection time point (310). ❹ (9) Based on the above information, the calculation of the strike position will be performed and displayed. 10 (丨〇) Power-saving type, the acceleration sensor is superfluous, omitted, and the main part of the invention can be realized, it goes without saying. (11) After the end of the strike, the ball will be far away, so the voltage value of the photo-sensing device of the touch ball will increase as the original value, and it goes without saying. This is not the beginning of the relationship, so it is beyond the scope of the illustration, of course, did not come out. 15 In addition, the time before the start of the operation of at least one of the photodetector and the impact sensor starts from the measurement start point (3〇6), which is the time difference between the microcomputer and the electronic circuit. In addition, if the club face is handled without regard to power saving and detection errors as problems, and the doubts and power saving of the detection error are not considered, the power supply can be kept energized. In addition, the difference between the strike point (309) and the light transmission detection point (310) is also the time difference before the microcomputer is detected, but it is a very important matter. Once the detection of point 311 is delayed, the ball will no longer touch the club face. The rapid detection of microcomputers is very important. In addition, the present invention also includes a strut for detecting a position detecting practice, and in 27 200932310, a display device including a receiving antenna is further provided, or only a watch type display portion is provided, and the transmitting rod is powered by the transmitting antenna. Actuate and communicate the received information, or form a combination with the receiving department that performs the calculation process. The radio waves required for reception are sent from the club side, but can also be sent from the receiving side. Therefore, it is possible to effectively utilize the thin raft provided with the printed type coil. Sometimes, you may want to perform statistical processing, statistical analysis, etc. on your habits and materials. At this time, it is necessary to transfer data to other devices or general-purpose mobile phones, mobile computers, and watch-type microcomputers. The club 10 data will increase the weight and is not suitable, so it should be transferred to the nearby device. This can be transferred by wireless (RFID). Its purpose can be said to be a power-saving type and a lightweight type. Although a swing speed measuring unit or an acceleration sensing measuring unit is provided, such a sensor has appeared on the market, so that it can exert a great effect in combination with the finished product of the present invention. 15 = The cost of the invention is called the experiment. 'Because _ Shenlu has the first temple. ・In the separate pole, the vertical and horizontal numbers, marks, and symbols are set: the fixed strike position is displayed on a smaller monitor. The number, the number 'and the above symbol is compared with the symbol of the face chart with the symbol attached to the hand'. The = method has a major disadvantage that must be continually compared to the law, but on the contrary, the monitor T is extremely small, so it is cheap and has no obstacles to the problem, and can be manufactured as well. The number i 2 3 4 $... = number ', and the mark of A, BAD, and e is attached to the longitudinal side. If the upper side of the front is displayed repeatedly (4) (4), this person can be said to have the habit of hitting the order 200932310 ' 5 "ΙΑ". However, it is necessary to carry the table separately, etc., and has the disadvantage of being less interesting and inconvenient. When the display is hit, it shows the shape of the club face and it is important to display the shape of the club face on the monitor to show where it is hit. The shape of the club face is approximately inverted, and once displayed, it is very easy to judge. The invention of course includes a practice club for detecting a strike position, wherein the club face of the golf club having the hole and the club head and the back of the club are provided with a light sensing portion, a microcomputer, a display portion, and a power supply portion. In addition, once the power is turned off or on, the computer unit that simultaneously sets the calculation of the state that can be automatically measured will be formed once the power is input again. The present invention also includes a practice club that can detect a striking position, wherein the display portion is disposed at a shaft portion directly below the grip. Further, the present invention also includes a club for striking position detecting practice, in which each of the holes is substantially filled with a light guiding material. The hole can be light-transmitted, so it can be repeatedly emphasized using plexiglass, strong inorganic glass, and a light-transmitting rubber. In addition, it also prevents the strength of the club face from being lowered, prevents the flight distance from being reduced, and prevents the effects of dust, rain, grass, turf, etc. from being filled in the holes, preventing the deterioration of the electronic parts, preventing the circuit from being short-circuited, and maintaining the insulation. . The inside of the club head is an ordinary cavity, and it is preferably filled with a foaming resin or the like, and is first solidified. It is because it does not want to excessively increase the weight, but wants to maintain reinforcement, support electronic equipment and protect it. Solid-state materials will not be listed here, but they can be used in such polymer chemical industry and electronic materials industry, 29 200932310 5 10 15 20 . In particular, the foam is lighter and more suitable. Further, the present invention includes a strut for striking position detection practice, wherein a reference hole portion for comparing changes in light during a control striking has been lifted on the crotch portion of the club face where the ball is hard to hit. The accuracy of position detection. Further, when an acceleration sensor or a speed sensor 'acceleration or speed (four) is set to be immediately before the strike, it can be judged that the combination before the hit is also included in the present invention. In this case, the steps of entering the measurement mode and performing the necessary electronic circuit power supply and setting are also included. In the present invention, it is important in the psychological sense that the LED is blinked for notification. It can also constitute the above mechanism. In addition, it is possible to inform the "good ball" after the better strike position, and to sound the music. If it is not good, there will be sounding and speaking functions such as encouraging sound. The low-priced rental of the machine can be advertised by its call. The popularity of such machines also contributes to the use of the above promotional techniques. After all, the club is an electronic machine, so the strengthening of the seal, the strengthening of the water, the water-repellent, and the coating of the water agent are also very important. The rain has occurred from time to time. It is especially suitable to be used in combination with a waterproof golf club bag (such as a combination). The invention will be described in more detail in the following examples. However, the effectiveness of the present invention is not limited by the following examples. [First Embodiment]

As shown in FIGS. 6 and 7, the striking position detecting device of the present invention includes: a golf club 2 including a shaft 4 having a grip portion 3 and a head portion 5 attached to a front end of the shaft 4 And the rod head 5 has a club face portion 6 including a striking surface to form three or more light guiding holes 7 with the back surface 6b; a plurality of light sensing 30 200932310 8 (photoinductor) corresponding to the light guiding holes respectively 7 is disposed on the side of the back surface 6b of the club face portion 6, and is fixed to the head portion 5 to output an electronic signal corresponding to the light intensity; and the calculation unit 9 (microcomputer) can receive the plurality of light sensors 8 Outputting the aforementioned electronic signal, and calculating the position of the center of gravity of the light guiding hole 7 that has been detected by the ball in the plurality of light guiding holes 7 when hitting the ball, and outputting it as a striking position signal; the display unit 1显示, the striking position of the spheroidal club face 6 can be displayed according to the striking position signal output by the calculating unit 9; and the power source 11 can be used for the plurality of photo sensors 8, the calculating/calculating unit 9 and The display unit 1 is supplied with power. The inner portion 10 of the rod head 5 is filled with a solidified material 17. For the golf club 2 (wooder 1: driver), the light guide hole 7 is formed as follows. In other words, the club face portion 6 having a thickness of 2 mm made of a titanium alloy is provided with 16 light guide holes 7 having a diameter of 1.2 mm, and is formed in a zigzag shape as shown in Figs. (Note: 0.3mm is initially vacated, but the amount of light is insufficient.) It is made to open the bottom of the head 5 and can be screwed (not shown). Next, the light guiding hole 7 is filled with a light transmissive material 12 (translucent resin) and treated to make the surface smooth. The material for filling the light guide hole 7 (translucent material 12) is taken from a large-scale merchandiser, and a material having high transparency (resin) is used. Next, a rubber pad 13 having holes formed in the same position as the club face portion 6 is formed, and each hole portion is adhered and fixed to an optical sensor 8 (photoelectric sensor) taken from an electric appliance manufacturer in Japan, and then the rubber pad is attached. 13 is adhesively attached to the back surface 6b of the club face portion 6. The rubber pad 13 between the club face portion 6 and the photo sensor 8 is also used for fixing and buffering the photo sensor 8. It is joined by a commercially available impact-resistant dispensing agent 14. The interior of the stem head 5 has been filled with a solidified material π. 31 200932310 Solid-state material 17 should use a foamed resin to protect the light sensor 8 etc. without causing a significant increase in weight. The electronic circuit board (calculation unit 9) can amplify the signals of the 16 photosensors 8 by means of a multiplexer, and is installed in a CPU in which an a/d converter is provided. That is, the multiplexer and the operational amplifier are used in the CPU (A/D conversion speed 7 is s/sample). The impact sensor 15 that can detect the impact of the impact is mounted on the head 5, and the acceleration sensor 16 that can detect the start of the swing is mounted on the substrate. The acceleration that the CPU can output from the acceleration sensor 16 The signal monitors the state of the 10 pole and enters the measurement mode (312) before the strike, and detects the strike point (309) by the impact sensor 15 and then obtains the signal of the 16 photosensors 8 from this time. Strike the position. The obtained striking position is displayed on the display unit 10 (liquid crystal display) provided under the grip portion 3 of the golf club 2 (the head side). The display unit 1 (liquid crystal display device 15) is a 32dotxl20dot (black and white, STN liquid crystal display device). Wiring between the CPU and the liquid crystal display uses ultra-fine strands (40 strands of copper wire, diameter 〇.i85mm) to make the club as light as possible.光 The photosensors 8 of the respective light guiding holes 7 are each about 3 g/piece, for a total of 16 holes, so it is 4.8 g. The results of the attack were excellent. The test results of the automatic machine and the test of the 20 hits were all displayed correctly on the monitor. The sensitivity of the above-described optical sensor 8 is shown in Fig. 5 and is shown in the second embodiment. The calculation unit 9 should have a memory function for memorizing the position signal. At this time, as shown in Fig. 6, by pressing the reset button 18 provided in the calculation unit 9 (display unit 10), the previous strike position can be displayed on the display unit. 32 200932310 [Second Embodiment] Next, an example of performance test results of an optical sensor mounted in a head is described, instead of a blow test. The condition at this time is as shown in Fig. 4. The angle of the club face 4〇1 of the tie head and the ground 402 is 0 (unit: 5 Ο 10 15 Ο 20 degrees). The result is shown in Figure 5. Of course, the angle is not a dip angle, nor a bottom angle. In Fig. 5, the electromotive voltage when the ball is in contact with the hole is [mV], the electromotive voltage when the ball is in a non-contact state is [mV], and the illuminance of the club face is lux [lx]. Of course, if the weather, the environment, etc. change, the illuminance changes without saying a word. In addition, MINOLTA digital illuminance meter (T1H) made by MINOLTA (share) has been used. However, this experiment is an example. However, when the ball is in contact with and in contact with the ball, it can be seen from the graph of Fig. 5 that the distance between the balls is substantially three digits, which means extremely lucky. That is, the problem of reality is that at least the ball touches the club face, and the determination is extremely unlikely to cause a determination error. The size of the holes does not limit the invention. [Third Embodiment] Other embodiments of the present invention are shown in Fig. 8. The striking position detecting device 50 of the present embodiment is different from the striking position detecting device of the first embodiment in that a transmitting portion 51 that can wirelessly transmit an electronic signal output from the photo sensor 8 is provided, and The golf club 2 is separately disposed and can receive the receiving portion 52 of the aforementioned electronic signal. The receiving unit 52 can receive the signal transmitted from the transmitting unit 51 via the antenna 53. At this time, the display portion 54 that can display the striking position is integrally formed with the receiving portion 52. Further, similarly to the striking position detecting device 1, a reset button 18 is provided. The calculation unit 9 and the power source 11 may be provided in the receiving unit 52 or in the transmitting unit 51 of 33 200932310. In Fig. 8, the head mode image 6 is also displayed, and the striking position display symbol 61 (in the illustrated example, +, ,) is displayed on the overlap. [Fourth Embodiment] In Fig. 9, an embodiment in which the receiving unit 52 constitutes a wristwatch type receiving unit 552A is further shown. At this time, although the display unit 54A is small, it is used in close proximity, so that the visibility is good. The watch type receiving portion 52A is also provided with a reset button μ. In Fig. 9, the head mode image 6〇 is also displayed, and the striking position indication symbol 61 on which the superimposed display is displayed (in the example of the figure. [Industrial Applicability] © 10 The present invention is not limited to The golf club with the hollow portion of the golf club can be implemented even if the iron rod and the push rod without the hollow portion are provided with the light guide hole and the light sensor. Moreover, the present invention is not limited to only the golf club. The specific position of the striking position is helpful. With the specific technology, the collision position of the object can be detected on the plane of the moving body, such as sports equipment, tools, etc., which are applied to the bat of the club and the racquet of the billiard ball. It can also be effectively used for baseball pitching exercises for the practice board, tennis teeing exercises, etc. & [Simple diagram of the figure] Fig. 1 is a diagram showing the club head used in the invention of the present invention. An example of a square lattice arrangement of a plurality of holes provided in the club face 20. Fig. 2 is a view showing a square of a plurality of holes provided on the club face of the golf head which is more excellent in the present invention. The shape is $- relative to one of the staggered arrangements. Figure 3 shows the relationship between the acceleration sensor, the impact sensor, the optical inductance tree, and the command processing time of the 34323323 microcomputer. The complex context of the time is clear and easy to understand the model description. Figure 4 is a schematic diagram showing the angle of the club face and the ground (0). _ 5 Figure 5 will take a variety of club face angle An example of the output voltage value of the ball/ballless optical sensor and the illuminance of the club surface (Lux) is shown in Fig. 6. Fig. 6 shows an embodiment of the striking position detecting device of the present invention. Fig. 7 is a cross-sectional view of the head of the embodiment shown in Fig. 6. Fig. 8 is a schematic view showing another embodiment of the striking position detecting device of the present invention. A schematic diagram of another embodiment of the striking position detecting device of the invention. 15 [Description of main component symbols] l···Beat position detecting device 7...light guide hole 2...golf club 8...photosensor 3"·grip portion9...calculation unit 4...shaft 10...display unit 5...head portion ll···power supply 6...club face Π...translucent material 6a...comb surface 13...rubber pad 6b...back surface 14...adhesive 35 200932310 15...impact sensor 16...acceleration sensor 17...solidified material 18"·reported history 50··· striking position detecting device 51·.. transmitting unit 52...receiving unit 52A...watch type receiving unit 53... Antenna 54...display portion 54A...display portion 60...head mode image 61...strike position display symbol 101···club head shape 102...club shaft lower end 103...club face 104...circular portion 105... Dotted line 106...circle 107...diameter 201... club head shape 202... club shaft lower end 203... club face '204... hole 205...dashed line 206...circle 207...diameter ❹ 301...output voltage axis 302... Time axis 303...voltage 304...voltage curve 305...measurement start determination reference voltage 306...measurement start point 307···output voltage 308 308...value 309...strike point 310...light transmission detection point 311···photo-electrical sensor- 401··· club face 402···ground 36

Claims (1)

200932310 X. Patent application scope: 1. A striking position detecting device, comprising: ~ a yoke golf club, comprising a shaft having a grip portion and a rod head mounted on the front side of the body The head portion has a club face portion including a strike surface and a back surface and three or more light guide holes are formed; and a plurality of photo sensors are disposed on the back side of the spring surface αρ corresponding to the light guide hole, respectively, and are fixed to The head of the rod is connected to an electronic signal corresponding to the light intensity; the generalizing unit receives the electric 〇 矾 输出 输出 输出 输出 , , , , , , , , , 前述 前述 前述 前述 前述 接收 接收 接收 接收 接收 接收 接收 接收 接收The position of the center of gravity of the light guiding hole that has been dimmed by the ball is detected and output as a striking position signal; the display unit displays the striking position of the club face according to the striking position signal output by the calculation unit; and 15 The power supply supplies power to the complex photo sensor, the calculation unit, and the φ display unit. 2. The striking position detecting device according to claim 1, wherein the calculating unit pre-memorizes each coordinate value 20 of the plurality of light guiding holes according to an xy vertical coordinate system set on the striking face of the club face; Xi,y!),.",(xn,yn), and make the weighting uniform, and calculate the coordinates (xg, yg) of the position of the center of gravity by using the following formula for the light guide hole that has been detected to be dimmed by the ball , (xg, yg) = ((xi + x2 + x3 ... + xn) / n, (yi + y2 + y3 ... + yn) / n). 3. If the striking position detecting device of the scope of the patent application is applied, the impact sensor that is mounted on the head of the rod and detects the impact and outputs a striking signal to the calculating unit, and uses the aforementioned striking signal The calculation of the aforementioned center of gravity position is started for the trigger signal. 4. The striking position detecting device according to claim 1, wherein the fifth display portion displays the striking position by a predetermined symbol on the pattern diagram of the rod head. 5. The striking position detecting device of claim 4, wherein the display portion has a function of blinking the aforementioned symbol. 6. The striking position detecting device according to claim 1, wherein the ten display portion is disposed in the vicinity of the grip portion of the shaft. 7. The striking position detecting device of claim 1, further comprising: a transmitting unit that wirelessly transmits the electronic signal output by the plurality of optical sensors; and a receiving unit that is separately disposed from the club. And receiving the electronic 15 signal; the calculation unit and the display unit are disposed apart from the golf club and connected to the receiving unit. 8. The striking position detecting device of claim 1, wherein the rod head is a hollow head, and the plurality of photo sensors are disposed inside the head of the rod 20. 9. The striking position detecting device of claim 8, wherein the inside of the rod head is filled with a solidified material. 10. The striking position detecting device of claim 1, wherein the light guiding holes are formed in at least four or more, and each of the light guiding holes is disposed at an intersection of a square 38 200932310 lattice. 11. The striking position detecting device according to claim 1, wherein the light guiding holes are formed in at least four or more, and are arranged at regular intervals in each column, and are disposed at positions adjacent to each other to be offset only by the aforementioned A jagged shape of 1/2 of the interval. 12. The striking position detecting device of claim 1, wherein at least a part of the shaft and the rod head are covered by a power generating element, and the power generating element and the plurality of photo sensors and the display unit are electrically Connected to supply at least a portion of the required power to them. 10 13. The striking position detecting device of claim 1, further comprising an acceleration sensor mounted on the golf club, and when the acceleration measured by the acceleration sensor exceeds a predetermined value, the foregoing The complex photo sensor and the aforementioned calculation unit enter the measurement state. The hit position detecting device of claim 1, wherein the 15th calculating unit has a memory function for storing the striking position signal, and the past striking position is displayed on the display unit in response to the request. 15. The striking position detecting device of claim 1, wherein the plurality of light guiding holes are filled with a light transmissive material. 16. A method for detecting a striking position, comprising the steps of: 20 hitting a ball using a golf club, the golf club comprising a shaft having a grip portion and a head portion mounted at a front end of the shaft, and the rod The head portion has a club face portion including a strike surface and a back surface and three or more light guide holes are formed; and the plurality of light beams are disposed on the back side and fixed to the front end of the club head by the respective light guide holes. a sensor that measures the light intensity passing through each of the light guiding holes; calculates a position of a center of gravity of the light guiding hole that has been detected by the ball in the plurality of light guiding holes, and outputs the position as a striking position signal; and 5 displays the foregoing according to the striking position signal The striking position of the club face. 17. A method of manufacturing a golf club for striking position detection, comprising the steps of: forming three or more light 10 guide holes on a club face having a striking face and a back face; and on the back side of the club face A plurality of photosensors that output electronic signals corresponding to light intensities are disposed at positions corresponding to the respective light guiding holes, and are fixed to the rod head. 18. The method of manufacturing a golf club 15 for striking position detection according to claim 17, wherein the step of fixing the plurality of photosensors to the rod head comprises the steps of: corresponding to each of the light guide holes A rubber pad having a hole at a position is joined to the back surface of the club face; and the plurality of photo sensors are joined to the rubber pad by using an impact-resistant adhesive.