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Putting stroke analyzer and putter for use thereinRelated Patent Categories: Education And Demonstration, Physical Education, GolfPutting stroke analyzer and putter for use therein description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060177807, Putting stroke analyzer and putter for use therein. Brief Patent Description - Full Patent Description - Patent Application Claims
FIELD OF THE INVENTION [0001] The present invention relates to an apparatus to contribute to enhancement of skill of a player oneself of guidance of the player and to selection of a putter optimal to the player by analyzing a putting stroke of golf, and a putter for use therein. BACKGROUND OF THE INVENTION [0002] Especially, a skilled golf player makes much account of a putting since it has an effect on the score. However there are a few ranges to practice easily and there is no way to analyze and evaluate the sensitive stroke objectively even if there is a range. Therefore the only way to improve the putting skill is to practice over and over again spending time and energy. On the other hand, it is difficult for an instructor to give a proper advice based on objective data. [0003] One of inventors of the present invention is a professional coach authorized by the Japan Driving Range and also prosecutes to make putters to fit an individual player. He has provided handmade putters which have all kinds of different elements respectively such as shape, weight, length, lie angle (angle between ground and shaft), loft angle ( an angle between sole and face of the putter), goose angle (an angle between ground and bump), appearance of putter face, an aiming line (a line to indicate aiming direction marked on a putter head) to fit somatotypes, requests, images of a variety of professional players. [0004] In this case, the above putters provided to fit the individual player are not always the best ones since there is no way to analyze and evaluate the players' stroke accurately and objectively. [0005] Conventionally, the common way to judge the skill of putting stroke was to judge from the actual rolling way of a ball on the putting green of golf course or the training mat made of artificial turf. [0006] Recently, the unexamined utility model application No.06-81567 discloses a training equipment to estimate the rolling distance, and the unexamined patent application No.2000-102633 discloses a training equipment to estimate not only the rolling distance but also the rolling direction, by detecting movement of the ball rolling between two points using an optical sensor in order to be able to practice at narrow area without checking the rolling way of the ball to the end. [0007] However these inventions are to judge putting condition by checking the movement of the ball and they can not evaluate the putting stroke itself to cause the movement of the ball. [0008] The training equipments for evaluating the putting stroke by detecting the movement of the putter head using the optical sensor and the like are put on the market such as "Putting Checker" of Miyamae incorporated (Higashi-Osaka city) and "Putting Machine" of Sword Technica (Kawasaki city). [0009] The former arranges plural pairs of some sensors put across the training mat in the direction of the stroke to detect light reflected from the putter head stroked on the mat to analyze and indicate track of the putter head, slope of the aiming direction of the putting face, head speed and the like by detection of light reflected from each sensor and time difference of the reflected light. [0010] The latter detects laser light reflected from the putting face by optical sensors to grasp movement of the putter head by several pairs of magnetic sensors arranged on the training mat for putting stroke to analyze and display slope of the aiming direction of the face, the head speed and the like. [0011] However the above equipments can only detect the movement of the putter head roughly since they analyze data input from limited number of sensors by a calculator to display the result and have limited accuracy because the input data don't have continuity. [0012] The sorts of data to be able to display as the analyzed result and timing during the stroke to be able to display are limited since the input data are limited. For example, in the case to display the direction of the face, they display only at the predetermined limited timing such as the direction at the time of aiming or impacting. [0013] In order to know and correct the putting stroke of a player oneself as necessary to rise the probability to drop a ball in a cup greatly, it is much effective to provide an apparatus to measure and analyze, evaluate the putting stroke, namely the direction of the face, the track of the head (including sweet spot at the time of impact and shift in the both directions of toe (tip side from the player's view)/heel (this side from one's view) of hitting point during from the aiming decided by the player at the beginning of the stroke, take away stroke at the time of prestroke, forward stroke for hitting the ball, impact, to follow through stroke after impact, and head speed, and display the result. [0014] And also it is possible to give a proper advice based on the objective data to improve the putting skill if the apparatus is available to analyze and evaluate the putting stroke to display the result with a sufficient accuracy. [0015] Furthermore if there is such an apparatus at the golf shop, it is very helpful to select a proper putter for a customer since he or she can evaluate the putting stroke of oneself at the time of using of the putter easily and objectively by stroking with the putter using the apparatus. [0016] The object of the present invention is to provide means to be able to analyze and evaluate all kinds of data such as the direction of the face, the track of the head, and the speed of the head at any timing during stroke with a sufficient accuracy to meet the need of the player by analyzing data to indicate the movement of the putter head during the putting stroke continuously. SUMMARY OF THE INVENTION [0017] The present invention analyzes movement of the putter head in the putting stroke of golf continuously with a sufficient accuracy by using position detecting method through electromagnetic induction. [0018] First of all the position detecting method through electromagnetic induction will be described. [0019] On the position detecting mat, a plurality of exciting coils X1, X2, X3 . . . , Xn extending in the X axis direction are arranged in parallel horizontally, and also a plurality of exciting coils Y1, Y2, Y3 . . . , Ym extending in the Y axis direction are arranged in parallel horizontally, as shown on the FIG. 8. A constant frequency signal is sent from an exciting and detecting apparatus to these coils one and after. [0020] On the other hand, electromagnetic resonators 24 which is an LC resonance circuit combined capacitance with inductance selected to resonate to the frequency are set on the side detected position, on the putter head (not shown) in this case, so that the surface of the inductor can parallel to the surface of the mat. [0021] For example, once the signal is sent from the exciting and detecting apparatus 35 to the coil X2, magnetic line of force that the strength changes in response to the frequency generate in the coil X2, and a part of the magnetic line of force pass through the inductor of the electromagnetic resonators. The current having the same frequency flows in the electromagnetic resonators according to Faraday's law relating to the electromagnetic induction because the magnetic line of force passing through changes in response to the frequency. The coil X2 serves as an exciting coil in this case. Continue reading about Putting stroke analyzer and putter for use therein... 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