Functional golf putter

Abstract

The present invention relates to a golf putter having an array of cornual projections formed on a putter face, which structurally suppresses a golf ball on the green during putting from skidding and hopping and from acting / reacting such that movement distance suddenly increases after unintended backspin thereof, and functions to allow, at the same time as putting, forward spin of the golf ball in the proceeding direction and, specifically, to a customized golf putter with an appropriate groove member selected according to green speed and the gender and physical conditions of a golfer. The present invention comprises: a head having a groove formed on a face, which comes into contact with the golf ball during putting; a shaft connected to the head through a neck; and a grip provided at the end portion of the shaft opposite to the head.

Description

Functional golf putter

[0001] The present invention relates to a functional golf putter having a pointed, horn-shaped (cornu) protrusion array formed on the front of the putter face, which structurally suppresses the phenomenon of a golf ball sliding on the green (skidding), bouncing (hopping), and suddenly increasing its travel distance after an unintended reverse rotation (action / reaction) during putting, and acts to cause the golf ball to rotate in the forward direction simultaneously with putting. In particular, the present invention relates to a customized golf putter in which an appropriate groove member is selected and configured according to the gender (male, female) and physical condition (weight, height) of the golfer, or the weather conditions (frost, snow, rain, dew) and green speed during a golf round.

[0002]

[0003] Golf is a sport heavily reliant on equipment, so each golfer can achieve better results when they use equipment that suits their individual needs. Consequently, golf club fitting is becoming increasingly important.

[0004] Typically, a golf putter is a tool used by golfers to place a golf ball on the putting green and then put it into the hole cup. Among the various golf clubs used in golf, it is the only tool that rolls the golf ball to the target location without lifting it into the air.

[0005] In golf, putting accounts for approximately half (1 / 2) of the total strokes, significantly impacting performance. While its importance is readily apparent, the putting motion itself is highly sensitive and complex, leading to frequent anxiety and mistakes even when practiced. To overcome this, various putter designs have been developed to improve aim and stroke convenience.

[0006] As shown in Fig. 1, a conventional general putter comprises a shaft (200) formed of metal or carbon fiber, a grip (handle) (300) installed on the upper portion of the shaft, and a head (100) made of metal to strike a golf ball, and the head and the shaft are connected via a neck. In addition, in order to accurately move a golf ball in an intended direction during a putting motion, it is important to hit the golf ball exactly in the center of the putter face so that the ball rolls in a straight direction.

[0007] However, when hitting a golf ball with a conventional putter, the contact area between the face and the golf ball is relatively wide, which causes the golf ball to backspin or bounce, causing the golf ball to skid on the putting green grass, hop, and suddenly increase distance. This causes the direction to become unstable due to sliding friction and irregular bounce, and the user cannot move the golf ball exactly in the desired direction due to changes in the sense of distance. Moreover, this problem was that the problem occurred more severely when the grass grain was opposite to the direction of travel of the golf ball. In addition, the face loft angle of the existing putter is formed to be inclined upwards by about 3-4 degrees, but in this case, the actual loft angle can increase at the moment of impact depending on the golfer's posture. And for this reason, the phenomenon of the golf ball bouncing off the ground increases as the loft angle increases. Also, during putting, due to action / reaction, a phenomenon may occur where the golf ball backspins in some areas immediately after hitting the ball and then rolls forward in the remaining areas.

[0008] Another conventional technology proposed to improve the above-mentioned problem is a putter that forms a loft that is inclined at a negative angle so that the face that strikes the golf ball is inclined toward the floor of the putting green, and minimizes the contact area with the face when striking, while striking the upper center of the golf ball to cause the golf ball to roll while rotating in the positive direction, thereby preventing the golf ball from slipping or bouncing, thereby improving the golfer's ability to proceed in the desired direction.

[0009] Putting is a process of hitting a relatively short distance, but the golfer's physical characteristics and putting posture, as well as the point of impact and the angle of contact when the golfer hits the golf ball with the putter, are factors that determine the direction of the golf ball. In addition, the amount of impact the putter gives to the golf ball when hitting the golf ball is a major factor in determining the distance the golf ball travels.

[0010] As discussed above, in order to reduce golf strokes through precise putting, it is very important to choose a putter that suits the individual characteristics of the golfer.

[0011] However, despite previous efforts to improve the design, most putters currently on the market are uniformly provided according to limited specifications. This means that average golfers cannot choose a customized putter that is precisely tailored to their gender, physical characteristics, and green speed. As a result, they have no choice but to purchase a putter that is roughly similar to their body type or characteristics, although it does not quite fit their body type or characteristics. In other words, even in the prior literature presented as a previous improvement plan (prior patent literature described below), they only propose a uniformly designed putter structure without further differentiation according to the golfer's gender, physical characteristics, or green speed. Therefore, because putters with precisely differentiated structures tailored to gender, physical characteristics, and green speed are not provided, the range of putters that golfers can choose the putter that is optimal for them is very limited.

[0012] In addition, as time passes and physical conditions such as weight change, many golfers end up using a putter that does not fit them well unless they choose and purchase a new one. Therefore, it is necessary to provide a way for golfers to easily replace only the relevant part of the face on the front of the putter they were using and reconfigure it to fit them properly.

[0013] Moreover, even on the same golf course, the green speed during a round can significantly affect the shape and distance the golf ball travels. Green speed can vary depending on how short or long the grass is mowed, how firmly the green surface is compacted by rolling, and even weather conditions like humidity. This makes it extremely difficult for golfers to control distance when putting.

[0014] As discussed above, a complex mix of factors can hinder golfers from accurately executing their putting motion. To more effectively address this issue, consider varying (subtly modifying) the groove structure of a golf putter to address these diverse factors.

[0015] Prior art literature

[0016] Patent documents

[0017] (0001) Republic of Korea Patent Publication No. 10-1097772, a putter having a downward striking surface with different impact angles for each section.

[0018] (0002) Republic of Korea Patent Publication No. 10-1183428, Golf club.

[0019] (0003) Republic of Korea Patent Publication No. 10-1691753, Golf putter head and golf putter including the same.

[0020] (0004) Republic of Korea Patent Publication No. 10-2273433, Golf putter with improved directionality and straightness.

[0021] (0005) Republic of Korea Patent Publication No. 10-2008-0004272, Head for golf putter.

[0022] (0006) Republic of Korea Utility Model Registration No. 20-0150491, Head for golf putter.

[0023]

[0024] The present invention has been proposed to solve the above problems, and by arranging a sharp, horn-shaped (cornu) protrusion structure on the front surface of a putter face groove member (the part that comes into contact with a golf ball), when a putting ball is hit, the contact area where the metal protrusion and the plastic golf ball come into contact is temporarily deformed as if the protrusion is stuck in the golf ball contact area, and then when the groove protrusion is separated, the deformed part of the golf ball is restored to its original state due to a phenomenon (hereinafter, this phenomenon is called “instantaneous denting bond” that occurs between the sharp part of the protrusion and the surface of the golf ball contact area), thereby precisely driving the rolling motion of the golf ball without slipping or bouncing, and at the same time, the groove member can be formed integrally with the head body or designed and manufactured in a module form so that it can be separated / connected to the head body, and in particular, the size or sharpness of the groove member protrusion (meaning the inner angle of the vertex of the horn-shaped protrusion) can be varied. The purpose is to provide a customized golf putter that allows the golfer to select a groove that is suitable for their gender or physical condition by designing and manufacturing it.

[0025] In addition, the present invention has another object to provide a customized golf putter that precisely configures the groove member so that the driving force for rolling the golf ball is immediately applied by the instantaneous impact engagement as described above when putting by means of the horn-shaped protrusion arrangement formed on the front surface of the groove member, and at the same time, the angle between the face surface of the head and the shaft centerline is horizontal (180 degrees), thereby preventing the phenomenon of the golf ball bouncing off (hopping) or backspin occurring at the initial contact between the groove member and the golf ball, and immediately creating a roll in the forward direction of the ball upon hitting.

[0026] In addition, the present invention has another purpose of providing a customized golf putter in which a groove member is precisely configured so that a golf ball rolling motion driving force is immediately generated by the instantaneous impact engagement as described above when putting by means of a horn-shaped protrusion arrangement formed on the front surface of the groove member, and in which an appropriate groove can be easily selected / replaced on the golf course in consideration of the putting green speed.

[0027]

[0028] The present invention is one form for achieving the above-mentioned object, and comprises a golf putter including a head having a groove formed on a face surface that contacts a golf ball during putting, a shaft connected to the head through a neck, and a grip provided at an end of the shaft opposite the head, wherein (1) the head has a head body and a groove member, (2) in order to generate an instantaneous hitting engagement phenomenon during putting, a cornu-shaped protrusion array having a sharp needle structure at its apex is formed on the front surface of the groove member (which is a portion that contacts the golf ball during putting), and (3) the protrusion array of the groove member is such that, based on the gender (male, female) of the golfer and the physical condition (at least one condition of weight or height) of the golfer, at least one of the size (base x height) of the cornu-shaped protrusion and the degree of sharpness (inner angle of the apex) of the cornu-shaped protrusion Among the plurality of types designed with a difference at a predetermined interval, one is selected, (4) the groove member is manufactured in a module form that can be separated from or connected to the head body, (5) the shape of the protrusion forming the protrusion array of the groove member has a shape of either a cone or a pyramid, and the angle between the edge (131b) of the first protrusion (131) forming the protrusion array and the edge (133a) of the adjacent second protrusion (133) is characterized in that it is formed at any one angle of 60 degrees to 120 degrees.

[0029] The present invention is another form for achieving the above-mentioned object, and in the above-mentioned customized golf putter, the size of the horn-shaped protrusion forming the protrusion arrangement of the groove member is characterized in that, in the case of a male, the weight is divided into a plurality of step sections of a predetermined unit from at least 45 kg to 95 kg, and in the case of a female, the weight is divided into a plurality of step sections of a predetermined unit from at least 40 kg to 90 kg, and the size of the horn-shaped protrusion is formed differently for each step section for the male and female weights.

[0030] The present invention is another form for achieving the above-mentioned object, and is characterized by being a customized golf putter that provides a plurality of grooves so that the grooves can be easily replaced on the golf course by selecting a groove made of a relatively light material among a plurality of grooves provided to reduce the amount of impact that the putter exerts on the golf ball when the putting green speed is higher than a predetermined speed, and conversely, selecting a relatively heavy groove among the grooves provided to reduce the amount of impact that the putter exerts on the golf ball when the green speed is lower than the predetermined speed.

[0031] The present invention is another form for achieving the above-mentioned object, and in the above-mentioned customized golf putter, the face surface of the head and the shaft are horizontal (180 degrees), the shape of the protrusions forming the protrusion array of the groove member is a square pyramid shape, and the angle between the edge (131b) of the first protrusion (131) forming the protrusion array and the edge (133a) of the adjacent second protrusion (133) is characterized by being 90 degrees.

[0032] The present invention is another form for achieving the above-mentioned object, and in the above-mentioned customized golf putter, the arrangement of the protrusions in the shape of a square pyramid is characterized in that, in the case of a man, the body weight is divided into 10 stages in units of 5 kg, and the edge length of the bottom surface of the protrusions in the shape of a square pyramid is formed from 1.2 mm to 3.0 mm at intervals of 0.2 mm, and in the case of a woman, the body weight is divided into 10 stages in units of 5 kg, and the edge length of the bottom surface of the protrusions in the shape of a square pyramid is formed from 1.1 mm to 2.9 mm at intervals of 0.2 mm.

[0033]

[0034] The putter according to the present invention as described above prevents the golf ball from slipping or bouncing by ensuring that the face horn is properly embedded in the surface of the golf ball during a putting motion, thereby causing the golf ball to roll forward immediately after hitting the ball, thereby offsetting the resistance of the grass texture and improving directionality and putting distance controllability.

[0035] The present invention provides a putter head body portion in a modular form that can be separated and connected, and also provides a variety of horn-shaped protrusion arrangements formed on the front surface of the groove member, thereby expanding the range of choices for golfers to easily secure a customized putter suitable for their gender, physical condition, or putting green speed.

[0036] A custom golf putter designed and manufactured according to the present invention has the effect of enhancing putting stability by allowing the golfer to comfortably maintain direction and control distance by causing a momentary tangling bonding phenomenon at the contact point between the sharp protrusions (metal material) of the groove and the golf ball (plastic material) during putting, thereby smoothly rolling the golf ball.

[0037] The golf putter according to the present invention has an effect of preventing the golf ball from bouncing (hopping) or backspin at the initial contact between the groove member and the putter ball during putting by configuring the head face surface having a groove structure in which a horn-shaped protrusion array is formed and the shaft centerline to form a horizontal angle (180 degrees).

[0038] In addition, the golf putter of the present invention, which can selectively separate and attach modular groove members, has the economic effect of allowing the golfer to obtain a customized putter at a lower cost by easily replacing the face portion (partial or entire face) of the front of the putter from the putter used previously, even if there is a change in the golfer's physical condition, such as weight, and thus reconfiguring the putter to suit the golfer's physical condition to suit the golfer's preference.

[0039] In addition, it accumulates putting green data for each golf course that changes depending on the weather, such as the condition of the grass on the putting green, the condition of the putting green floor, or humidity (accumulated using location information such as GPS), and selects a putter groove module that matches the change in green speed determined by the condition of the grass, the condition of the putting green floor, or the weather, such as humidity, during an actual round, thereby making it much easier for the golfer to control the distance when putting.

[0040] In addition, it has the effect of automatically matching each golfer's unique information (e.g., smartphone number, QR code, etc.) with the corresponding putter groove module information and providing it to each golfer's personal information terminal (e.g., general smartphone, putter fitting dedicated single-shot, etc.) so that the optimal putter groove selection can be made by comprehensively considering the physical condition and putting green condition of each golfer.

[0041]

[0042] Figure 1 is a schematic diagram illustrating a conventional general golf putter configuration.

[0043] FIG. 2 is a configuration diagram of one embodiment of a customized golf putter according to the present invention, wherein FIG. 2 (A) is a front view of the customized golf putter of the present invention, and FIG. 2 (B) is a cross-sectional view taken along line A-A' of FIG. 2 (A).

[0044] FIG. 3 is a configuration diagram of a head (100) of a customized golf putter according to the present invention of FIG. 2, wherein FIG. 3 (A) is a plan view and front view structural diagram of the putter head of the present invention, and FIG. 3 (B) is a plan view and back view structural diagram of the putter head of FIG. 3 (A).

[0045] FIG. 4 is a diagram showing the configuration of a head (100) of a customized golf putter according to the present invention of FIG. 2, wherein FIG. 4 (A) is a diagram showing a head body (110) of the golf putter of the present invention, and FIG. 4 (B) is a diagram showing a groove member (130) of the golf putter of the present invention.

[0046] FIG. 5 is an explanatory drawing of a groove member (130) of one embodiment of the present invention of FIG. 4 (B), wherein FIG. 5 (A) is a plan view and front structural drawing of the putter groove member (130) of the present invention, and FIG. 5 (B) is a plan view and back structural drawing of the groove member (130) of FIG. 5 (A).

[0047] FIG. 6 is a diagram explaining the horn-shaped protrusion arrangement structure of the groove member (130) of one embodiment of the present invention of FIG. 5, wherein FIG. 6 (A) is an enlarged view of the horn-shaped protrusion arrangement of the groove member (130), and FIG. 6 (B) is an enlarged view of two horn-shaped protrusions (131, 133) indicated by dotted lines in FIG. 6 (A).

[0048] Fig. 7 is a diagram showing the state of fastening of the head body (110) and the groove member (130) constituting the putter head (100) of one embodiment of the present invention of Fig. 2.

[0049]

[0050] A golf putter comprising a head having a groove formed on a face surface that contacts a golf ball during putting, a shaft connected to the head through a neck, and a grip provided at an end of the shaft opposite the head, wherein (1) the head has a head body and a groove member, (2) in order to generate an instantaneous stamping engagement phenomenon during putting, a cornu-shaped protrusion array having a sharp needle structure at its apex is formed on the front surface of the groove member (which is the portion that contacts the golf ball during putting), and (3) the protrusion array of the groove member is designed in a plurality of types with a predetermined gap between at least one of the sizes (bottom x height) of the cornu-shaped protrusions or the degree of sharpness (vertex angle) of the cornu-shaped protrusions, based on the golfer's gender (male, female) and the golfer's physical condition (at least one condition of weight or height), (4) The groove member is manufactured in a module form that can be separated from or connected to the head body, (5) the shape of the protrusion forming the protrusion array of the groove member has a shape of either a cone or a pyramid, and the angle between the edge (131b) of the first protrusion forming the protrusion array and the edge (133a) of the adjacent second protrusion (133) is characterized in that it is formed at an angle of either 60 degrees to 120 degrees.

[0051]

[0052] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings, FIGS. 2 to 7. The contents described herein are by no means intended to limit the present invention to specific embodiments, and should be understood to include various modifications, equivalents, and / or alternatives as well as the disclosed embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar components. In addition, expressions such as “first,” “second,” etc. used herein may modify various components regardless of order and / or importance, and are only used to distinguish one component from another, but do not limit the components. In addition, the terms used herein are used only to describe specific embodiments and are not intended to limit the technical scope, and the singular expression may include the plural expression unless clearly defined otherwise. In addition, the terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the art of the present invention.

[0053] FIG. 2 is a drawing for explaining the configuration of one embodiment of a customized golf putter according to the present invention, wherein FIG. 2 (A) is a schematic diagram showing the front configuration of the customized golf putter of the present invention, and FIG. 2 (B) is a drawing showing a cross-section taken along line A-A' of FIG. 2 (A).

[0054] A custom golf putter (100) according to one embodiment of the present invention has a groove member (130) positioned on the central face between the toe (111) and the heel (113) of the head body (110), and a shaft (200) connected to the upper end of the heel (113) via a neck (210). In particular, the groove member (130) can be designed and manufactured to be fixedly attached within the head body (110), and more preferably, the groove member (130) is made detachable from the head body (110) so that other groove members can be conveniently replaced and combined when necessary.

[0055] In a preferred embodiment of the present invention, a groove member (130) is positioned in a recessed portion formed in the central portion of the face of the head body (110), and groove fastening bolts (150a, 150b) are inserted from the rear of the head body (110) to fasten and fix the head body (110) and the groove member (130). To this end, groove fastening holes (115a, 115b) are formed in the head body (110), and bolt fastening nuts (135a, 135b) are formed at corresponding positions on the rear portion of the groove member (130) so that the ends of the bolts (150a, 150b) can be inserted and fastened while rotating at a predetermined depth, as shown in FIG. 5 (B). In addition, a directional sight (117) is provided at a middle position of the upper surface (top) of the head body (110).

[0056] FIG. 3 is a drawing for explaining the configuration of the head (100) of the custom golf putter according to the present invention of FIG. 2, wherein FIG. 3 (A) is a drawing showing the plane and front structure of the putter head of the present invention together, and FIG. 3 (B) is a drawing showing the plane and back structure of the putter head of FIG. 3 (A). FIG. 4 is a drawing for explaining the configuration of the head (100) of the custom golf putter according to the present invention of FIG. 2, wherein FIG. 4 (A) is a drawing showing the head body (110) of the golf putter of the present invention, and FIG. 4 (B) is a drawing showing the groove member (130) of the golf putter of the present invention. In addition, FIG. 7 is a drawing showing a state in which the head body (110) and the groove member (130) constituting the head (100) of the custom golf putter according to one embodiment of the present invention of FIG. 2 are fastened.

[0057] As illustrated in FIG. 3 (A) and FIG. 7, a projection array having a sharp horn shape is formed on the front surface (the portion that contacts the golf ball when putting) of the groove member (130) located at the center of the face of the head body (110), and a neck fastening hole (119) is formed on the upper portion of the heel (113) side of the head body. In addition, as illustrated in FIG. 3 (B) and FIG. 4 (A), groove fastening holes (115a, 115b) are formed in the head body (110), so that the groove member (130) can be fastened by inserting a bolt (150a, 150b) on the rear surface of the head body.

[0058] The present invention provides a variety of groove members (130) so that golfers can select a suitable protrusion arrangement structure according to their gender or physical condition (weight, height, etc.), thereby enabling golfers to select a groove member (130) that suits them and construct a customized putter. This allows golfers to perform sensitive putting movements more stably.

[0059] Female Height Male Obesity Overweight Standard Underweight Underweight Standard Overweight Obesity 51.0 46.8 42.5 36.1 150 cm 38.3 45.0 49.5 54.0 52.0 47.7 43.4 36.8 151 cm 39.0 45.9 50.5 55.1 53.0 48.6 44.2 37.6 152 cm 39.8 46.8 51.5 56.2 54.1 49.6 45.1 58.3 153 cm 40.5 47.7 52.5 57.2 55.1 50.5 45.9 39.0 154 cm 41.3 48.6 53.5 58.3 56.1 51.4 46.8 39.7 155 cm42.149.554.559.457.152.447.640.5156 cm42.850.455.460.558.153.348.541.2157 cm43.651.356.461.659.254.249.341.9158 cm44.452.257.462.660.255.250.242.6159 cm45.153.158.463.761.256.151.043.4160 cm45.954.059.464.862.257.051.944.1161 cm46.754.960.465.963.258.052.744.8162 cm47.455.861.467.064.358.953.645.5163 cm48.256.762.468.065.359.854.446.2164 cm49.057.663.469.166.360.855.347.0165 cm49.758.564.470.267.361.756.147.7166 cm50.559.465.371.368.362.657.048.4167 cm51.360.366.372.469.463.657.849.1168 cm52.061.267.373.470.464.558.749.9169 cm52.862.168.374.571.465.559.550.6170 cm53.663.069.375.672.466.460.451.3171 cm54.363.970.376.773.467.361.252.0172 cm55.164.871.377.874.568.362.152.7173 cm55.865.772.378.875.569.262.953.5174 cm56.666.673.379.976.570.163.854.2175 cm57.467.574.381.077.571.164.654.9176 cm58.168.475.282.178.572.065.555.6177 cm58.969.376.283.279.672.966.356.4178 cm59.770.277.284.280.673.967.257.1179 cm60.471.178.285.381.674.868.057.8180 cm61.272.079.286.482.675.768.958.5181 cm62.072.980.287.583.676.769.759.2182 cm62.773.881.288.684.777.670.660.0183 cm63.574.782.289.685.778.571.460.7184 cm64.375.683.290.786.779.572.361.4185 cm65.076.584.291.887.780.473.162.1186 cm65.877.485.192.988.781.374.062.9187 cm66.678.386.194.089.882.374.863.6188 cm67.379.287.195.090.883.275.764.3189 cm68.180.188.196.191.884.276.565.0190 cm68.981.089.197.2.

[0060]

[0061] In addition, when forming the protrusion arrangement of the groove member (130) in consideration of the golfer's physical condition, as a means of realistically distinguishing the individual physical condition of the putter, the statistical data investigating the standard weight compared to the height of Korean women and men in Table 1 can be referred to. For example, in the table below, the standard weight of a Korean woman with a height of 150 cm is 42.5 kg, and that of a man is 45 kg. In addition, the standard weight of a Korean woman with a height of 190 cm is 76.5 kg, and that of a man is 81 kg.

[0062] As a preferred embodiment of the present invention, by using the standard weight statistics for the height of Korean women and men in Table 1, the weight of men and women can be divided into sections of 5 kg each, and the groove member (130) protrusion arrangement can be designed, so that a structure that matches the gender and physical condition (weight, height, etc.) of the golfer can be selected, and various types of groove member (130) structures can be presented as shown in Table 2 below.

[0063] The physical conditions of golfers in Table 2 below are the results of an experiment in which multiple golfers repeatedly performed putting strokes (more than 30 times per person) for each of 10 weight ranges from 45 kg to 95 kg for men. It is desirable to design and manufacture the grooves so that the length of the base of the pyramid-shaped protrusion varies from 1.2 mm to 3.0 mm depending on the weight range of the male golfer.

[0064] Also, for women, this is the result of an experiment in which multiple golfers repeatedly performed putting strokes (more than 30 times / person) for each of 10 weight ranges from 40 kg to 90 kg. It is desirable to design and manufacture the groove so that the length of the base of the pyramid-shaped protrusion varies from 1.1 mm to 2.9 mm depending on the weight range of the female golfer.

[0065] Male Female Self-weight, kg, Dimensions, mm, Solid weight, kg, Dimensions, mm, Height 45.0~50.01.20 Regular pyramid base length 40.0~45.01.10 Regular pyramid base length 50.1~55.01.40 Regular pyramid base length 45.1~50.01.30 Regular pyramid base length 55.1~60.01.60 Regular pyramid base length 50.1~55.01.50 Regular pyramid base length 60.1~65.01.80 Regular pyramid base length 55.1~60.01.70 Regular pyramid base length 65.1~70.02.00 Regular pyramid base length 60.1~65.01.90 Regular pyramid base length 70.1~75.02.20 Regular pyramid base length Length 65.1~70.02.10 Regular pyramid base length 75.1~80.02.40 Regular pyramid base length 70.1~75.02.30 Regular pyramid base length 80.1~85.02.60 Regular pyramid base length 75.1~80.02.50 Regular pyramid base length 85.1~90.02.80 Regular pyramid base length 80.1~85.02.70 Regular pyramid base length 90.1~95.03.00 Regular pyramid base length 85.1~90.02.90 Regular pyramid base length 95.0 or more 3.20 Regular pyramid base length 90.0 or more 3.00 Regular pyramid base length

[0066]

[0067] Meanwhile, the above experimental results are examples based on a pyramid-shaped projection shape (where the bottom is a square, the sides are all equilateral triangles, and the vertex is located above the center of the bottom), and as another embodiment of the present invention, a different arrangement of pyramid-shaped projections from the above example can be adopted, or even if the shape is the same, the sharpness of the pyramid-shaped projections (the inner angle of the vertex) can be changed to design the groove member (130) in various ways.

[0068] Accordingly, if the groove member (130) protrusion arrangement has a different protrusion shape such as a cone shape, a triangular pyramid shape, a pentagonal pyramid shape, or a hexagonal pyramid shape, or if the degree of sharpness (inner angle of the vertex) of the horn-shaped protrusions forming such various protrusion arrangements is different, the protrusion base length standard value according to the results of the experiment according to the gender and physical condition of the golfer may be different from the above Table 2.

[0069] In addition, even if it is a square pyramid-shaped protrusion structure, if it is a square pyramid structure of a different shape from the one used in the previous experiment, that is, if the vertex is not located at the upper center of the square base but at a position that is tilted to one side (for example, tilted upward or downward from the center of the protrusion), the experimental result standard value for the length of the base of the horn-shaped protrusion may be different from that in Table 2 above.

[0070] FIG. 5 is a drawing for explaining an embodiment of a groove member (130) of the present invention of FIG. 4 (B), wherein FIG. 5 (A) is a drawing showing a plan and a front structure of the putter groove member (130) of the present invention, and FIG. 5 (B) is a drawing showing a plan and a back structure of the groove member (130) of FIG. 5 (A). In addition, FIG. 6 is a drawing for explaining in more detail the horn-shaped protrusion array structure formed on the front surface of the groove member (130) of the present invention of FIG. 5, wherein FIG. 6 (A) is an enlarged drawing of the horn-shaped protrusion array formed on the front surface of the groove member (130), and FIG. 6 (B) is a partial enlarged view for explaining the structure of two adjacent horn-shaped protrusions (131, 133) indicated by dotted lines in FIG. 6 (A).

[0071] When putting, the force (impact) applied to the golf ball varies depending on the weight of the golfer. Therefore, in the embodiment of the present invention, taking this into consideration, the size (bottom x height) of the pointed horn-shaped protrusion formed on the groove member (130) of the putter head (100) or the inner angle of the apex of the horn-shaped protrusion (meaning the degree of sharpness of the 'needle') is varied depending on the physical condition of the golfer, thereby providing a putter with a structure suitable for each golfer. Here, the protrusions forming the protrusion array of the groove member can be designed to have a shape of either a cone or a pyramid (triangular pyramid, square pyramid, pentagonal pyramid, hexagonal pyramid, etc.), and the angle between the edge (131b) of the first protrusion (131) forming the protrusion array and the edge (133a) of the adjacent second protrusion (133) is preferably formed at an angle of between 60 degrees and 120 degrees depending on the golfer's physical condition or the putter manufacturing process conditions. More preferably, the angle between the edge (131b) of the first protrusion (131) of the above-described protrusion array and the edge (133a) of the adjacent second protrusion (133) is 90 degrees, and the head face surface having the groove member (130) having the above-described square pyramid protrusion array and the shaft (center line) are horizontal (180 degrees), so that the ball rotates forward in the direction of travel from the beginning of the putting stroke, thereby preventing the ball from bouncing (hopping) or rotating backward when the groove member and the golf ball come into contact. This is possible because an instantaneous tack bonding phenomenon occurs at the contact area between the metal head face protrusion and the plastic golf ball when the putting stroke is made. That is, because the head face surface is temporarily deformed in the area where the protrusions come into contact with the golf ball, as if the protrusions are being embedded, the golf ball immediately begins to rotate forward from the moment of impact without slipping or bouncing at all.At this time, the degree to which the metal head face protrusions are impressed on the surface of the plastic golf ball may vary depending on the impact of the putting motion, the sharpness of the protrusions (the size of the vertex angle), the hardness and elastic modulus of the golf ball, and therefore, assuming that the golf ball-related characteristics do not go beyond the normal range, it is preferable to increase the sharpness of the groove protrusions, i.e., the size of the vertex angle, as the golfer's weight increases, and conversely, to relatively decrease the vertex angle of the protrusions as the golfer's weight decreases.

[0072] And as another embodiment of the present invention, as described above, the greater the weight of the golfer, the more the internal angle of the sharp apex of the groove protrusion increases, and conversely, the less the weight of the golfer, the more the internal angle of the apex of the protrusion decreases relatively, and at the same time, at least two types are provided in various ways so that the golfer can select a groove weight that suits his or her preference according to the green speed, thereby enabling more precise fitting.

[0073] For example, when the green speed is faster than the speed of the putter, a relatively light groove can be selected and installed among the multiple grooves provided to immediately reduce the impact of the putter on the golf ball on the golf course. Conversely, when the green speed is slower than the specified speed, a relatively heavy groove can be selected among the multiple grooves provided to reduce the impact of the putter on the golf ball and can be easily replaced on the spot. At this time, the types of grooves with different weights can be carefully selected according to the golfer's tendencies. If desired, it is desirable to have more than five types. If simpler designs are desired, it is desirable to design the grooves with two to four types of weights. In addition, the configuration can be different depending on the golfer's tendencies (taking into account groove selection / performance history under the same conditions in the past).

[0074] A fitting information provision system according to a preferred embodiment of the present invention is described.

[0075] Golf club fitting is the process of scientifically analyzing the components of a club, as well as the individual golfer's physical characteristics and swing style, and then adjusting the club to suit their individual preferences. As previously discussed, putting accounts for approximately half (1 / 2) of all strokes in a golf game, making putter fitting a crucial component.

[0076] A fitting information provision system according to a preferred embodiment of the present invention can use location information such as GPS to accumulate and continuously update putting green data for each golf course, such as the condition of the grass on the putting green, the condition of the putting green floor, or the humidity, on a golf course operator's server or a separate golf club fitting service provider's server. In other words, the system can comprehensively consider the physical condition of the golfer playing the round and the condition of the putting green to recommend the optimal putter groove module that suits them.

[0077] At this time, the optimal putter groove selection information provided for each golfer can be recommended based on each golfer's unique information (e.g., smartphone number, QR code, physical condition, etc.), and more preferably, the putter groove module can be automatically matched by considering the green speed status information for each hole of the golf course based on real-time location information such as GPS. Then, the recommended information is provided to the terminal carried by the golfer (e.g., general smartphone, putter fitting dedicated terminal, etc.). At this time, the information terminal that can be used is, for example, the location-based service-based golf guide information golfer terminal of Korean Patent Registration No. 10-1119634, or a general gain portable terminal (e.g., smartphone) that is publicly known.

[0078] Meanwhile, the function of automatically matching and recommending the optimal groove module for each golfer may be a matching value for each condition input (specified) by each golfer, or a value recommended by an artificial intelligence (AI)-based matching technique. Here, the AI-based matching may use the past data of the individual golfer, or data accumulated on several golfers with similar physical condition and putting stroke tendencies to the golfer, and may use deep learning techniques or various known AI (artificial intelligence) techniques to generate groove recommendation information.

[0079] Although the embodiments of the present invention have been described with reference to the attached drawings, the present invention is not limited to the specific embodiments described above, and various modifications or changes can be made by a person having ordinary skill in the art to which the invention pertains without departing from the gist of the present invention claimed in the claims.

[0080]

[0081] [Explanation of symbols]

[0082] 100: Putter Head

[0083] 110: Head body 130: Groove member

[0084] 111: Toe 131, 133: Pyramid-shaped protrusion

[0085] 113: Heel 135a, 135b: Nut for bolt fastening

[0086] 115a, 115b: Holes for groove fastening

[0087] 117: Directional sight

[0088] 119: Neck fastener

[0089] 150a, 150b: Bolts for groove fastening

[0090] 200: Shaft 300: Grip

[0091]

[0092] The putter according to the present invention as described above prevents the golf ball from slipping or bouncing by ensuring that the face horn is properly embedded in the surface of the golf ball during a putting motion, thereby causing the golf ball to roll forward immediately after hitting the ball, thereby offsetting the resistance of the grass texture and improving directionality and putting distance controllability.

[0093] The present invention provides a putter head body portion in a modular form that can be separated and connected, and also provides a variety of horn-shaped protrusion arrangements formed on the front surface of the groove member, thereby expanding the range of choices for golfers to easily secure a customized putter suitable for their gender, physical condition, or putting green speed.

[0094] A custom golf putter designed and manufactured according to the present invention has the effect of enhancing putting stability by allowing the golfer to comfortably maintain direction and control distance by causing a momentary tangling bonding phenomenon at the contact point between the sharp protrusions (metal material) of the groove and the golf ball (plastic material) during putting, thereby smoothly rolling the golf ball.

[0095] The golf putter according to the present invention has an effect of preventing the golf ball from bouncing (hopping) or backspin at the initial contact between the groove member and the putter ball during putting by configuring the head face surface having a groove structure in which a horn-shaped protrusion array is formed and the shaft centerline to form a horizontal angle (180 degrees).

[0096] In addition, the golf putter of the present invention, which can selectively separate and attach modular groove members, has the economic effect of allowing the golfer to obtain a customized putter at a lower cost by easily replacing the face portion (partial or entire face) of the front of the putter from the putter used previously, even if there is a change in the golfer's physical condition, such as weight, and thus reconfiguring the putter to suit the golfer's physical condition to suit the golfer's preference.

[0097] In addition, it accumulates putting green data for each golf course that changes depending on the weather, such as the condition of the grass on the putting green, the condition of the putting green floor, or humidity (accumulated using location information such as GPS), and selects a putter groove module that matches the change in green speed determined by the condition of the grass, the condition of the putting green floor, or the weather, such as humidity, during an actual round, thereby making it much easier for the golfer to control the distance when putting.

[0098] In addition, it has the effect of automatically matching each golfer's unique information (e.g., smartphone number, QR code, etc.) with the corresponding putter groove module information and providing it to each golfer's personal information terminal (e.g., general smartphone, putter fitting dedicated single-shot, etc.) so that the optimal putter groove selection can be made by comprehensively considering the physical condition and putting green condition of each golfer.

Claims

1. A golf putter comprising a head having a groove formed on the face surface that contacts the golf ball during putting, a shaft connected to the head through a neck, and a grip provided at the end of the shaft opposite the head. (1) The above head has a head body and a groove member, (2) In order to generate an instantaneous stamping bonding phenomenon when putting, a cornu-shaped protrusion array having a sharp needle structure at the top is formed on the front surface of the groove member (the part that comes into contact with the golf ball when putting). (3) The arrangement of the projections of the groove member is designed in a plurality of types with a predetermined interval between at least one of the sizes (bottom x height) of the horn-shaped projections or the degree of sharpness (vertex angle) of the horn-shaped projections, based on the golfer's gender (male, female) and the golfer's physical condition (at least one of weight or height). (4) The groove member is manufactured in a module form that can be separated from or connected to the head body. (5) A custom golf putter characterized in that the shape of the protrusion forming the protrusion array of the groove member has a shape of either a cone or a pyramid, and the angle between the edge (131b) of the first protrusion (131) forming the protrusion array and the edge (133a) of the adjacent second protrusion (133) is formed at an angle of between 60 degrees and 120 degrees.

2. In the first paragraph, the size of the horn-shaped protrusion forming the protrusion arrangement of the groove member is such that, in the case of men, the weight is divided into multiple step sections of a predetermined unit from at least 45 kg to 95 kg, and in the case of women, the weight is divided into multiple step sections of a predetermined unit from at least 40 kg to 90 kg, and the size of the horn-shaped protrusion is formed differently for each step section for the weight of men and women.

3. In paragraph 1, The face surface and shaft of the above head are horizontal (180 degrees), A custom golf putter characterized in that each protrusion forming the protrusion array of the groove member has a square pyramid shape, and the angle between the edge (131b) of the first protrusion (131) forming the protrusion array and the edge (133a) of the adjacent second protrusion (133) is 90 degrees.

4. In the third paragraph, the arrangement of the protrusions in the shape of a square pyramid is characterized in that, in the case of men, the weight is divided into 10 sections in units of 5 kg, and the edge length of the bottom surface of the protrusions in the shape of a square pyramid is formed from 1.2 mm to 3.0 mm at 0.2 mm intervals, and in the case of women, the weight is divided into 10 sections in units of 5 kg, and the edge length of the bottom surface of the protrusions in the shape of a square pyramid is formed from 1.1 mm to 2.9 mm at 0.2 mm intervals, respectively. A customized golf putter.

5. A golf putter including a head having a groove formed on the face surface that contacts the golf ball during putting, a shaft connected to the head through a neck, and a grip provided at the end of the shaft opposite the head, (1) The above head has a head body and a groove member, (2) In order to generate an instantaneous stamping bonding phenomenon when putting, a cornu-shaped protrusion array having a sharp needle structure at the top is formed on the front surface of the groove member (the part that comes into contact with the golf ball when putting). (3) The arrangement of the projections of the groove member is designed in a plurality of types with a predetermined interval between at least one of the sizes (bottom x height) of the horn-shaped projections or the degree of sharpness (vertex angle) of the horn-shaped projections, according to the putting green speed standard, and is provided so as to select one of them. (4) The groove member is manufactured in a module form that can be separated from or connected to the head body. (5) A custom golf putter characterized in that the shape of the protrusion forming the protrusion array of the groove member has a shape of either a cone or a pyramid, and the angle between the edge (131b) of the first protrusion (131) forming the protrusion array and the edge (133a) of the adjacent second protrusion (133) is formed at an angle of between 60 degrees and 120 degrees.

6. In the fifth paragraph, the size of the horn-shaped protrusion forming the protrusion arrangement of the groove member is a customized golf putter in which the size of the horn-shaped protrusion is formed differently for each step section for the male and female weights while dividing the weight from at least 45 kg to 95 kg into multiple step sections of a predetermined unit for males and dividing the weight from at least 40 kg to 90 kg into multiple step sections of a predetermined unit for females.

7. In paragraph 5, The face surface and shaft of the above head are horizontal (180 degrees), A custom golf putter characterized in that each protrusion forming the protrusion array of the groove member has a square pyramid shape, and the angle between the edge (131b) of the first protrusion (131) forming the protrusion array and the edge (133a) of the adjacent second protrusion (133) is 90 degrees.

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