KR200498078Y1 - Cylindrical golf putter head - Google Patents

Abstract

Regarding a cylindrical golf putter head, the striking surface that enlarges the curved surface of the putter head and forms a small groove perpendicular to the transverse axis of the head expands the sweet zone and allows contact with the impact construction at a constant vertical angle, immediately after impact. It reduces the jumping or reverse rotation of the ball and improves forward rolling, and the vibration system combined with the sweet zone on the inside of the hollow formed parallel to the horizontal axis of the head body generates vibration sound when the ball contacts the sweet zone of the putter head when putting. Golfers can detect whether the putting is accurate at the moment of impact, so they can find clues to errors that occur during the putting process and can immediately correct the putting. The weighted ring, a weighted chain located in the center of the putter head, and the semi-disk-shaped legs in the left and right centers combine with both ends of the head body to widen the sweet zone of the putter head and increase the moment of inertia in the target direction, which can prevent the target from occurring in the head due to impact error. Reduces negative rotational inertia with respect to direction. The base of the cylindrical golf putter head contacts the green in the form of a line to reduce grass resistance, and the thin weight body located horizontally at a certain height and the transverse axis of the putter head and the tail of the semicircular balance leg reduce grass resistance when putting. It prevents being dragged or hit by the green and the cylindrical head body, thin weighted body, and hemispherical structure of the heel and toe reduce wind resistance and reduce the shake of the putter.

Description

Cylindrical golf putter head

This design is basically a cylindrical golf putter head, which expands the sweet zone of the hitting surface, reduces the jumping or sliding of the ball immediately after impact of the ball and the putter head when putting, and reduces the inertia moment. A structure that can improve the straightness of the ball cloud by increasing and reducing the negative rotational inertia in the putting direction that can occur at the end of the putter head when making an inaccurate impact. The presence or absence of putter head sweetness at the moment of impact and when the ball is accurately impacted and when the impact is inaccurate. A cylindrical shape that takes into account conditions such as a structure that places a vibrating body structure inside the body of the putter head that generates a differentiated vibration sound when putting, a structure that reduces resistance from the wind when putting, and a structure that reduces resistance from the green or grass around the green. The purpose is to provide golf putters.

Until now, various types of putters have appeared, such as straight putters, mallet-type putters, and cylindrical or round shape putters with a curved putter head. However, it is impossible to definitively say which putter is good because putting can vary depending on the physical condition of the athlete, type of putting, putting style, etc., and green conditions, climate conditions, etc. also affect putting. Interest in existing golf putters is mainly to expand the sweet spot by distributing the mass of the putt head to both ends of the head toe and heel and the bottom of the putter head to expand the sweet zone, or to increase the moment of inertia of the putter head when putting. A structure that places the center of gravity deeply by adding weight to the rear of the head, setting a constant loft angle on the putter head to match the upward trajectory characteristics of the motion when putting, and making it easy to align the putter head and ball during putting setup. It can be said that the focus has been on the back.

1. The most important thing in putting is where the putter head touches the ball at the moment of putting. Distributing the putter's mass downward is to compensate for the forward rolling of the ball when the putter touches the top of the ball. If the putter distributes the head mass excessively downward, the center of the putter head is low, which increases the height difference between the center of the head and the center of the ball, widening the space that needs to be adjusted up and down when putting, and the space that needs to be adjusted up and down when putting is expanded. The probability of coming into contact with the ball increases, and as a result, the ball's reverse rotation, jumping or bouncing is more likely to occur, and the speed and direction of the ball are also affected. This means that putters with a structure that distributes weight downward have a structural problem. Many professional golfers and instructors recommend that when practicing putting on a putter mat, you place two coins on top of each other and practice dropping only one coin. This is a practice method suited to a putter with a downward weight distribution structure. In fact, putting on the green from a coin height is very difficult due to the resistance of the grass. Many golfers actually experience grass resistance when putting on the green and often experience the phenomenon of the ball jumping or bouncing upon impact. This reverse rotation of the ball or the occurrence of jumping or bouncing affects the speed and straightness of the ball. Generally, 20% of the total putting distance is the skidding stage, and this phenomenon is caused by the reverse rotation that occurs at the beginning of putting. This is because sliding friction has greater friction resistance than rolling friction and reduces the straightness of the ball (Dave Peltz, 2000). This is because the putter head with a downward weight distribution structure has a low center of the ball and a large difference between the center of the ball and the center of the putter, which can increase the probability of jumping or bouncing at impact.

Therefore, a putter with a structure that can narrow the difference between the center of the head and the center of the ball is required.

2. Steve Newell (2001) argues that good putting requires contact with the ball as soon as the putter passes the lowest point of the swing path. The argument is that the putting motion should be slightly upward, so that the putter's striking surface and the ball are square. If the striking surface of the vertical plane impacts the ball upward, it does not contact the ball at 90°, causing jumping or bouncing, which reduces the ball's ability to travel straight. The structural change that corrects the contact between the putter's striking surface and the ball at a right angle is the loft angle. Until now, the loft angle of the hitting surface of existing putters is 2 to 6°, although it varies slightly depending on the manufacturer, but most are 3° (previous book, 2000). This means that the flat hitting surface must be putted 3° upward to contact the ball at a right angle. However, in reality, the frequency of impact on the sweet zone of the putter head is very rare, and the physique and putting style of each putter are different, so the 3° loft angle setting is questionable, which leads to putters using multiple putters. Most of them. To solve this problem, a change in the structure of the striking surface occurs, and an example is the curved surface of the striking surface.

In putting, the convex hitting surface of the head reduces inaccuracy caused by a slightly miss-aimed putt and helps overspin the ball so that the ball rolls in the correct direction (IPC: A63B53/04, registered) Number 05382019; 1995. 01. 17). The vertically curved strike face expands the true roll zone of the ball, enabling a constant impact (IPC A63B53/00, A63B53/04, application number: 09773695, 2001. 02. 01) . The cylindrical shape putter head allows the ball to roll well after impact (IPC A63B53/04, application number: 11127418, May 12, 2005). The domestic patent of Patent No. 10-0932639 is also similar to the claims of prior foreign patents. The main point of those who advocate a curved hitting surface is that it reduces jumping and reverse rotation without a separate loft angle setting on the putter, allowing accurate and consistent rolling putting.

Therefore, it is expected that there will be a lot of evolution of cylindrical putter heads that form a gently curved hitting surface that allows the ball and the hitting surface to contact at a constant right angle regardless of the loft angle of the hitting surface when putting.

3. When putting, it is said, 'When the ball enters the hole, do not lift your head or turn toward the hole until you hear a "cling" sound.' This is not a problem with the putter structure, but a practice method to prevent disruption of the putting movement and improve consistency. The putter only audibly confirms the result of the ball entering the hole with a “clunk” sound. In putting, it is more important for the putter to detect whether the ball has impacted the sweet zone of the putter head at the moment of impact before checking the result of the putt.

However, no matter what structure the putter is, it is not easy to detect whether the ball has accurately impacted the sweet zone of the putter head when putting. Most golfers rely on tactile information from their fingers, but the tactile information for impact accuracy is inaccurate because the strength and properties felt by the fingers are different depending on the material of the putter head, the thickness of the hitting surface, and the shape of the groove. A commonly used method of attaching special paper to the striking surface of a putter head and judging accuracy through marks on the paper is also a post-mortem method of checking the results after putting. In the end, until now, the accuracy of the impact of the ball and sweet zone during putting has depended only on feel, and there has been the problem of post-mortem evaluation that evaluates the accuracy as a result of whether the putting was successful or not.

Therefore, a putter head with a structure that can detect whether the putter itself was impacted in the sweet zone the moment the putter head and ball impact during putting is required.

4. Mullet-type putters, which have a structure that increases the moment of inertia by adding weight to the rear, have the advantage of increasing the moment of inertia, but the torque arm is long, so negative rotational inertia in the target direction occurs when the impact is slightly outside the sweet zone when putting. There is a problem in that direction error occurs due to . Among modified mallet putters, there is also a design aimed at stable putting by shortening the torque arm to reduce torque and shake of the putter (IPC: A63B53/04, application number; 10223716, 2002. 08 20).

Therefore, it is expected that various products will emerge in the future to improve these problems and optimize the above concepts.

5. As described above (paragraph 4), mallet-type putters with a structure in which the weight is distributed to the rear end are thick and long and have a wide bottom, so the phenomenon that the bottom or the rear end of the head hits or is dragged against the green often occurs when putting. In addition, when putting from the apron or green border, the distance and direction of the putted ball changes due to the resistance of the grass, making it difficult to control, and is greatly affected by the wind. In putting, the grip strength is relatively weak and the putting motion is difficult. Because it is small and slow, the putter feels the wind's influence on putting relatively significantly. Straight putters structurally have a flat hitting surface and are long at both ends of the head, so they are greatly affected by headwinds, while mallet-type putters have a long and thick tail, so they are affected by winds in all directions when putting. Recently, putters designed for wind are appearing, but the changes are limited to thinning the thickness of the overall putter and rounding the edges.

Therefore, a putter head with a structure that can reduce resistance to headwinds and crosswinds when putting, and reduce grass resistance when putting from the apron, edge, or green boundary point, is required.

[Document 1] Domestic Patent No. 10-0932639 [Document 2] IPC: A63B53/04, CPC: Application number: 08190357 Application date: 1994. 02. 01. Registration number: 05382019 Registration date: 1995. 01. 1. [Document 3] IPC: A63B53/04, CPC: Application number: 08903962 Application date: 1997. 07. 31. Registration number; 06019686 Registration date: 2000. 02. 01. [Document 4] IPC: A63B53/04, CPC: A63B53/02 A63B53/0487 application number; 10223716, application date: 2002. 08. 20. [Document 5] IPC: A63B53/04 A63B53/14 Application number: 07755545 Application date: 1991. 09. 05. Registration number: 05176379 Registration date: 1993. 01. 05. Applicant: Devcorp of America, Inc. [Document 6] IPC: A63B53/00 A63B53/04 CPC: A63B53/0487 A63B2053/005 Application number: 09773695 Application date: 2001.02.01. Applicant: Teardrop Golf Company [Document 7] IPC: A63B53/04 CPC: A63B53/0 A63B53/0487 Application number: 10223716 Application date: 2002. 08. 20. Registration number: 06916252 Registration date: [Document 8] IPC: A63B53/04 CPC: A63B53/0487 Application number: 11127418 Application date: 2005.05.12.

[Document 1] Dave Peltz (2000). Putting Bible, USA. N.Y. Doubleday Dell Pub. [Document 2] Steve Newell (2001). The Golf Instruction Manual, London, Dorling Kindersley Limited [Document 3] Daum. jtbc golf magazine, 2017. 12. 12. 09:43

The present invention relates to a cylindrical golf putter head composed of three parts: the head body, the vibration part, and the weighting body, which expands the sweet zone of the hitting surface area, reduces the jumping or sliding of the ball immediately after impact of the ball and the putter head when putting, and reduces inertia. A structure that improves the straightness of the ball roll by increasing the moment and reducing the negative rotational inertia in the putting direction that occurs at both ends of the toe and heel of the putter head when making an inaccurate impact. The sweet zone and the sweet zone on the hitting surface of the putter head at the moment of impact when putting A structure that places a vibrating body on the back of the putter head body that generates differentiated vibration sounds when the ball is accurately and incorrectly impacted. A structure that reduces wind resistance when putting and reduces the resistance of the green or grass around the green. The purpose is to provide a cylindrical golf putter that satisfies conditions such as and placement.

A cylindrical golf putter head with a curved striking surface,

1. Expanding the sweet zone of the hitting surface and increasing the moment of inertia acting on the ball of the putter at the moment of impact between the putter head and the ball when putting, and at the same time reducing the negative rotational inertia toward the target direction at both ends of the head that can occur due to a slight impact error. means to reduce; Forming a stepped hitting surface formed by enlarging a radius larger than the radius of the basic head body circumference. A weight placed in the center of the putter head is connected to both ends of the head body and the head body by connecting legs on both left and right sides that are integrated with the weight body. A feature that distributes the weight of the weighted body to both ends of the putter head by combining it horizontally and parallel to the central axis.

2. A means to prevent jumping or sliding immediately after impact between the putter head and the ball; A feature of forming a fine groove perpendicular to the transverse axis of the head on the striking surface,

3. A means for arranging a vibrating body structure capable of generating a vibration sound in the center of the putter head body so that a vibration sound is generated when the ball impacts the putter head sweet area at the moment of impact; The sweet part of the putter head and the vibrating body head that accommodates the impact vibration when the ball is impacted, and the two vibrating forks formed by dividing the vibrating body head above and below, extend through the weighted body part without contacting the wall of the head body space, and vibrate. The characteristic of the gap formed in the tail of the vibrating fork that allows it to spread out into the space outside the head body rather than remaining within the vibrating fork,

5. A means of securing a space through which the vibrating head and vibrating fork of the vibrating body part of paragraph 4 above can pass without contacting the inner wall of the head body space; The back plane of the head body, which was formed by vertically cutting the body between the two ends of the back of the putter head body, is cut again to form a cylindrical hollow sharing the central transverse axis of the head body in the inner center, and the cylindrical hollow is cut and processed again to form the head body. Characteristics of the head body ball formed by penetrating the front plane,

6. Means to prevent the tail of the putter head from hitting or being dragged against the green when putting: a slope formed by cutting a portion from both ends of the heel and toe of the putter toward the center, and a narrow bottom surface in contact with the green, electrical ( The structural feature of securing the green and a certain height of free space by horizontally combining the leg joint connecting the weight body and the body of the previous note with both ends of the head body,

7. Means for reducing wind resistance to the putter head and grass resistance from the green and surrounding greens: forming a round spherical structure at the end of the heel and toe of the putter head and the connecting bridge of the weighting body to be thin, and A cylindrical golf putter is provided that has all of the above features, including the feature of combining the connecting leg horizontally with the central transverse axis of the head.

1. By expanding the sweet zone of the putter head, the gentle curve of the head striking surface and the curved surface of the ball can accurately impact, reducing reverse rotation or bouncing and enabling stable putting.

2. A series of small grooves perpendicular to the horizontal axis of the putter head formed on the hitting surface prevent slipping at the moment of impact and ultimately improve the straightness of the ball.

3. While putting, the moment arm is shortened while increasing the moment of inertia in the direction of the putter and reducing the negative rotational inertia in the target direction caused by a slight putting error to improve the straightness of the ball.

4. Golfers can learn the correct putting movement on their own by allowing them to recognize the accuracy of the impact of the putt and any errors in the movement through the hitting sound that occurs at the moment of impact between the putter head and the ball when putting.

5. It can reduce the phenomenon of the tail being dragged or hit by the green when putting and the resistance of the green and the grass around the green, increasing the probability of successful putting.

6. The curved surface of the basic putter head body and the enlarged hitting surface of the head body reduce the resistance of headwinds, and the hemispherical structure at both ends of the putter head reduces the influence of crosswinds and prevents the putter from shaking. do.

7. When setting up a cylindrical golf putter head, the base and green contact in the form of a short line, and the tail of the putter has a relatively high clearance compared to other putters, allowing for accurate impact without grass resistance when putting.

1 is a three-dimensional view of a putter head; Representative too
Figure 2 is a view from behind the putter head
Figure 3 is a view from below the head body
Figure 4 is a view from the front of the head body
Figure 5 is a diagram showing the difference between the front plane of the head body and the spatial plane behind the heg body
Figure 6 is a view from the side of the vibrating body
Figure 7 is a view from above of the hitting surface and vibrating body.
Figure 8 is a three-dimensional illustration of the head body cut in the middle.
Figure 9 is a perspective view of the head body viewed from the side.
Figure 10 is a view from above of the weighted body part
Figure 11 is a view from behind the weighted body part
Figure 12 is an illustration of the impact situation of the putter head and ball

Referring to Figures 1 and 12, the cylindrical golf putter head is described in detail by dividing it into three parts: 1. head body, 2. vibrating body, and 3. weighted body, and 4. A general summary is as follows.

1. Head body ; Heel and toe, head end, head body hollow,

1) In the present invention, in FIGS. 1 to 5, the putter head body 4 has a basically cylindrical structure, and the curved hitting surface portion 20 enlarged to a radius larger than the radius of the basic head body has a flat hitting surface. Designed to suit the upward putting motion characteristics of the putter, there is no need to set the loft angle of the putter head surface, and the enlarged curved striking surface portion 20 forms a step with the surface of the basic head body, and the left and right ends of the putter head are cut with π. The hemispherical heel (1) and toe (2) formed by processing are structural features that reduce the influence from headwinds and crosswinds,

2) In Figures 3, 5, and 8, the rear surface of the head body (4) between the heel and toe boundary lines (3) of the putter is first cut to form a second pocket on the back plane (7) of the stepped head body, which is then machined to the center of the head. The feature of forming a hollow body (9) with a step sharing the transverse axis, the thickness of the central part of the head body (4) of the striking surface portion (20) having a step difference from the basic head body surface is thin, and the heel (1) in the preceding paragraph 1) ·The toe (2) and head body end (5) are thickened so that the weight of the head is distributed to both ends, which expands the sweet zone of the putter head.

3) In FIGS. 4 and 7, a groove of a curved small striking surface furrow [(concave) 22] perpendicular to the horizontal axis of the center of the head body 4 is formed on the striking surface portion 20 shown above. The structure of a series of furrows and ridges [(凸) 23] is a structural feature that prevents the ball from slipping immediately after impact when putting and improves the straightness of the ball roll,

4) In Figure 3, the bottom surface of the putter head with a double structure having an inclined surface cut at a certain angle from both ends of the heel (1) and toe (2) of the head body (4) to a certain position in the center and a curved surface that has not been cut. (19) When putting, the bottom surface in contact with the green is narrow and contacts the green in the form of a short line, securing a high clearance (37) between the green and the green at the moment of impact, so that the floor does not collide with the green of the putter or the resistance of the grass Structural features that do not receive

5) In Figures 8 and 9, a plane corresponding to the size of the striking surface portion 20 of the head body is cut and processed from the hollow center of the head body 9 in the preceding paragraph 1-2) to the front plane 26 of the head body. The feature is that one wide head body hole (27) is secured inside the head body that penetrates the space at the back of the body and the front surface (26) of the head body, and the front plane (26) of the head body is sequentially larger than the head body hole (27). By combining the step surface (28) in front of the head body, which is formed by cutting slightly wider, and the back jaw surface (29) of the vibrating body head with a size corresponding to the size of the sweet zone of the putter head, the vibrating fork (14) is formed into the head body ball of the electric head body. (27) Structural features such as being able to extend through the inner surface without contacting it and providing a space where vibration diffusion and resonance of the vibrating body portion 21 can occur,

In other words, a summary of the structure formation and combination process of electricity; ① Formation of the back plane of the head body (7) ⇒ ② Formation of the hollow inside the head body (9) ⇒ ③ Formation of the front plane of the head body (26) ⇒ ④ The space at the back of the body, the hollow inside the head body (9) and the front plane of the body (26) Penetrating to form the head body ball (27) ⇒ ⑤ Forming the step surface (28) in front of the head body ⇒ ⑥ The front plane of the head body (26) and the back of the hitting surface (12), the step surface in front of the head body (28) and the back jaw of the vibrating head. Any combination of (29)

6) In Figures 5 and 8, a head body rear end coupling groove (25) is formed on both head body rear ends (5) of the head body (4), so that the semi-disc leg end (30) in Figure 10 is coupled to the head body rear end. Structural features that engage grooves (25);

7) In Figure 1, a circumferential shaft coupling rod (10) is formed on the upper part of the head body for connection to the putter shaft, and a coupling rod groove (11) is formed on the upper end with a step from the base end to fit the end of the shaft and firmly couple it. structural features, etc.,

A cylindrical golf head having all the characteristics of 1), 2), 3), 4), 5), 6), and 7) above.

2. Vibrating body; Vibrating screen head and vibrating fork

1) In FIGS. 6, 7, and 9, the vibrating body portion 21 is located in the center as part of the striking surface portion 20 and is divided into a vibrating body head 13 and two upper and lower vibrating forks 14, and vibrates with the striking surface portion 20. The body portion 21 is all made of brass or brass alloy material, and when the striking surface portion 20 and the vibrating fork 21 are viewed from above, they are shaped like a 'T' as shown in Figure 7, and when viewed from the side, they are tuned forks as shown in Figure 6. bar), it is a modified structure in which the thick left and right bar-shaped forks of the tuning fork are replaced with thin bar-shaped forks in the upper and lower positions, and the tuning fork (14) is moved from the upper and lower positions to the left and right positions. A structural feature that allows for reciprocal transformation and displacement that can be changed to the shape of a (tunning bar). In Figure 9, the step surface 28 in front of the head body and the size of the sweet zone of the putter head correspond to the size of the sweet zone of the putter head. By combining the rear jaw surface (29) of the vibrating body head, the upper and lower vibrating body forks (14) do not contact the inner surface of the head body hole (27), and the front and rear two weighted rings of Figures 10 and 11 are cut. Structural features that pass through the space above and below (17).

2) The left (heel) and right (toe) sides of the back (12) of the hitting surface (20) are connected to the front plane (26) of the head body with screws at four positions (24) of the hitting surface (20). At the same time, the structural feature is that the vibrating head (13) of a size corresponding to the sweet zone of the putter head is integrated with the head body rear surface (7) by the stepped vibrating head jaw surface (29); The upper and lower vibrating forks (14) are arranged to pass behind the putter head without contacting the surface of the head body ball (27) and the surface of the weighted ring cutting part (17), and the length of the upper vibrating forks (14) is The short and long end of the lower vibrating fork (14) is curved to π in a shape that wraps around the back of the weighted ring cutting part (17) to form a vibrating fork gap (15) that is horizontal with the upper vibrating fork (14). feature structure; When putting, the impact vibration at the moment of impact between the sweet zone of the putter head and the ball is spread to the upper and lower oscillating forks (14), causing resonance, and the vibrating fork gap (15) between the ends of the upper and lower forks is at the upper part of the sweet zone. A structural feature that generates differentiated vibration sounds when impacted and when impacted on the lower part, and allows the vibration to spread to spaces other than the fork rather than remain within the fork, making the sound last for a long time.

This structural feature allows you to auditorily feel the accuracy of the impact and find clues to errors that occurred during the putting process by differentiating the vibration sound, which produces a clear sound when making an accurate impact and a relatively dull or no vibration sound when making an inaccurate impact. Until now, putters have judged the accuracy of putting through the skin sensation of the fingers, and the sensation can only be acquired through long practice and training, making it difficult for beginners to feel the sensation. The commonly used method of attaching special paper to the hitting surface and evaluating it through the mark of the ball formed upon impact has high validity, but it is not an immediate evaluation of putting, but a post-evaluation problem, that is, the accuracy of putting movement cannot be evaluated immediately at the putting site. The cause of putting errors can only be found through post hoc methods, and error correction in putting movements is also possible through additional, separate practice afterwards. On the other hand, this design can determine the accuracy of putting and find clues to putting errors through auditory information through the momentary vibration sound generated when the putter impacts in the golf field. In the putting field, the putter provides instantaneous visual information, tactile information, It is a cylindrical golf putter with a vibration system that allows immediate putting correction through feedback of sensory information that integrates auditory information.

3) In the previous 1-5), the weight of the vibrating body portion 21 located in the center of the head body 4 integrally with the putter head striking surface portion 20 is the inertia of the putter target direction together with the weighted body portion of FIGS. 10 and 11. Features a function to improve the straightness of the ball by increasing the moment and to control negative rotational inertia that can occur at the heel (1) and toe (2) of the putter head when making an inaccurate impact.

A cylindrical golf putter head having all the structural features of 1), 2), and 3) above.

3. Weighted body ((加重體) part; weighted ring and semi-circular leg

1) When comparing the case of applying the same weight to the end of the tail of the putter head, the weight ring 16 is a ring-shaped weighting chain located at the rear center of the golf putter head body in FIGS. 1, 10, and 11. ) is divided into two integral left and right semi-disc legs (18), and the upper and lower central parts of the weighted ring (16) are cut back and forth to form a weighted ring cutting portion (17) and a groove (31). A structure in which the formed semi-disc leg end (30) is coupled to the head body coupling groove (25) of the head body rear end (5); The weight of the weighting ring (16) is centrally distributed to both ends (5) of the putter head to expand the sweet zone, and when the putter head and the ball are accurately impacted, the moment of inertia acting on the ball at the center of the head is increased, and the inaccurate A structural feature that controls the negative rotational inertia toward the target direction that occurs at the tip of the putter head at the time of impact,

2) The weight of the weighted ring (16) of 3-2) is distributed to both ends of the heel and toe of the head body, the thickness of the weighted ring (16) is made thin and wide, and a portion of the center front and rear of the weighted ring (16) is formed. Structure of the weighted ring cutting portion (17) formed by cutting; Corresponding to the increased radius length of the weighted ring (16), the center of gravity of the putter is moved toward the striking surface portion (20) of the putter head to shorten the torque arm, thereby increasing the moment of inertia in the target direction at the time of impact. The structural feature has the effect of reducing the negative rotational inertia toward the target direction of the head end that occurs in case of an inaccurate impact corresponding to the shorter torque arm.

3) In Figure 13, a semi-disc leg 18 horizontally coupled to the horizontal axis of the center of the putter head and an integrated weighted ring 16 are located higher than the bottom surface of the head body 19; A basic clearance (37) equal to the height of the center of the putter head (33) is already secured from the green, and the height of the putter is adjusted to align the center of the putter head (32) with the impact point (35) of the ball center (34) line when putting. It is possible to secure a higher clearance space, including the difference between the center of the putter head (33) and the center of the ball (36), so that the tail of the putter does not drag on the green at impact or during follow through. A structural feature that increases the free space (36+37) to prevent collisions and reduce resistance from the green or surrounding grass.

4) In item 2) above, a weighted body structure formed by a thin and wide weighted ring (16) and a thin semi-disc leg (18) with the same weight as that of the existing mullet-type putter; It has the effect of moving the center of the putter toward the body of the putter head, thereby reducing the length of the tail of the head, thereby reducing the resistance of the tail wind and side wind received by the entire putter head, etc. 1), 2), 3), 4 above. ) A cylindrical golf putter head that has all of the structural features of ).

4. Executive summary

A structural feature of the striking surface portion (20) of a curved surface in which the front curved surface of the putter head body is enlarged to a radius larger than the radius of the head body circumference, a structural feature of a cylindrical hollow (9) in the inner center of the body that shares the transverse axis of the head body, Characteristics of the structure of the two ends of the heel and toe of the hemispherical putter head, which are formed by cutting π larger than the radius of the putter head, the front end (6) and the back end (5) of the head body formed in different sizes, from both ends of the putter head. The structural features of the bottom surface (19) of the putter head having a double structure having an inclined surface cut at a certain angle to a certain position in the center and a curved surface that is not cut, the striking surface portion (20) formed with a step from the basic head body (4) surface, and The vibrating body portion 21, which is part of the striking surface portion 20, is made of brass or brass alloy material and has a series of curved small grooves perpendicular to the central horizontal axis of the head body 4 formed on the striking surface portion 20. Structural characteristics of the (concave) groove 22, the vibrating screen portion 21 is a tuning fork divided into a vibrating screen head 13 and a vibrating fork 14, which is made by changing the thick bar-shaped fork into a thin bar-shaped tuning fork. A structural feature that allows reciprocal transformation and displacement of the vibrating fork (14) from the up and down positions to the left and right positions, allowing for reciprocal transformation and displacement of the putter head. Located in the center of the back, the upper and lower vibrating forks (17) have a structural feature of passing up and down without contacting the weighting ring (16), and the vibrating body head (13) corresponding to the size of the sweet zone of the putter head has a step. By combining the vibrating body head jaw surface (29) with the step surface (28) in front of the head body, the vibrating body head (13) does not contact the head body (4), the head body ball (27), and the surface of the weighting ring (16). Structural features: A structure in which the left and right semi-circular legs (18), which are integrated with the weighting ring (16) of the weighted body placed at the rear center of the putter head body, are horizontally connected to the ends of the head body (5, 6) and the central horizontal axis of the head body. Features: All of the above structures, including a structure in which the weight of the putter head is positioned higher than the bottom surface of the head body (19), which is formed by a thin and wide ring-shaped weight ring (16) and a semi-circular leg (18). A cylindrical golf putter head having the characteristics of

Before explaining the symbols, if we define the basic terms of the putter, the term putter includes the head, shaft and other structures, the head refers to the entire body of the putter and its attached structures, and the body of the head refers to the entirety of the head excluding ancillary structures. means body. In the specification of the present invention, symbols and names based on the head body are given and explained as follows.
1. Putter head heel; The tip of the putter near the body when addressing
2. Putter head toe; The tip of the putter away from the body at address.
3. Putter heel·toe boundary line; The line that separates the putter toe (1) and heel (2) from the head body (4)
4. Head body; Putter head body between head heel and toe boundary (3)
5. Rear end of head body; A part of the back of the head body (4) between the head body and the heel/toe border (3) is cut off.
6. Front end of head body; The part of the front of the head body excluding the boundary line (3) between the head body and the heel (1) and toe (2) and the striking surface area (20) on the front of the head body (4), which is larger than the rear end of the head body (5)
7. Back plane of head body; Surface formed by cutting the back of the head body (4)
8. Cutting surface behind the head body; A second cut plane to secure the cylindrical head body inner cavity (8) at the head body rear plane (7).
9. Hollow inside the head body; A cylindrical hollow with an inner core sharing the central transverse axis of the head body (4) formed by cutting from the secondary cutting surface (8) at the rear of the head body.
10. Shaft coupling rod; A coupling rod divided into two stages at the top that connects the base and shaft, which are integrated with the head body (4)
11. Shaft coupling rod groove; A groove formed at the top of the shaft coupling rod (10) for a firm fit between the shaft and the head body (4).
12. Back of striking surface; The back plane of the striking surface portion (20) coupled to the head body rear plane (7)
13. Vibrating screen head; The central portion of the vibrating body portion (21) of a size corresponding to the sweet zone of the hitting surface portion (20) combined with the front plane of the head body (26)
14. Vibrating fork; A structure that can be reciprocally transformed into a tuning fork-like shape by changing from an upper and lower arrangement to a left and right arrangement with two forks at the top and bottom that spread the impact vibration received by the vibrating head (13) upon impact.
15. Vibrating fork gap; A cutting gap in the tail of the upper fork formed so that the vibration of the upper and lower forks (14) of the vibrating body does not stay in the vibrating body part (21) but spreads to the head body hole (26).
16. Weighted ring; Ring-shaped weight body located at the rear center of the head body (4)
17 Weighted ring cutting part; Parts removed by cutting the upper and lower central parts of the weighted ring (16) to prevent contact between the vibrating fork and the weighted ring and to secure space for vibration diffusion.
18. Semi-disc type leg; A semicircular plate-shaped connecting bridge that is integrated with the weighted ring (16) and connects both ends of the head body heel (1) and toe (2).
19. Putter sole; The bottom surface has a dual structure of an inclined cut surface and an uncut surface with gradual steps from both ends of the heel (1) and toe (2) to a certain position in the center.
20. Impact area; When viewed from above, the vibrating body part (vibrating body head (13) and vibrating fork (14)), which is a curved surface connected to the front plane (26) of the head body and integrated with the striking surface, forms a 'T' shape.
21. Vibrating body; Common name for the vibrating screen head (13) and the vibrating fork (14)
22. Impact surface furrow (concave); A very small furrow perpendicular to the transverse axis of the head body (4) of the hitting surface (20)
23. Strike surface bump (凸); Ridges between the furrows (22) of the striking surface (20)
24. Screw connection location; Location of the coupling screw between the front plane of the head body (26) and the striking surface portion (20)
25. Joint groove at the rear end of the head body; Grooves at both ends of the head body (3) where the ends of the semi-disc legs (18) of the weighted body are joined.
26. Front plane of head body; A plane formed primarily by placing a step on the front of the head body (4) so that it can be combined with the rear plane (21) of the hitting surface.
27. Head body ball; The head body space penetrates the front plane of the head body (26), the hollow inside the head body (9), and the space behind the head body.
28. Step surface in front of head body; A small plane formed by secondary cutting of the front plane of the head body (26) with a step slightly wider than the boundary of the head body hole (27), and a surface that joins the jaw surface of the vibrating body head (29).
29. Vibrating head chin surface; The chin surface combined with the step surface (28) in front of the head body
30. Semi-disc leg tip; A coupling part with a groove formed at the end of the semi-disc leg (18) that is coupled to the coupling groove (25) at the rear end of the head body.
31. Semi-disc leg end groove; Groove for firmly fitting the rear end of the head body (5) and the end of the semi-disc leg (30)
32. Putter head center height during putting setup
33. Ball center height during putting setup
34. Position of the putter at the moment of putting impact
35. The sweet spot on the hitting surface should impact the ball.
36. Difference between ball center height (33) and putter head center height (32) during putting setup; Adjustment interval for putter height to accurately impact the sweet zone of the putter head on the center of the ball at the putter head position during setup.
37. Structural clearance between the green and the tail of the putter head when setting up putting.

Claims (7)

In a cylindrical golf putter head, the curved surface in front of the putter head body is enlarged to a radius larger than the radius of the head body circumference and a curved striking surface is formed with a series of curved small grooves perpendicular to the horizontal axis of the head body center. Structure, a vibrating body part located in the center of the hitting surface that is integrated with the hitting surface, a vibrating body head of a size corresponding to the sweet zone, and a vibrating fork structure at the top and bottom, and both ends of the putter head are cut to π larger than the radius of the putter head. Structure of the heel and toe of the hemispherical putter head, structures of different sizes where the front end of the head body is large and the back end is small, and the body sharing the transverse axis of the head body formed inside the head body between the heel and toe ends. A cylindrical hollow structure on the inside, a double-structured bottom surface of the putter head with an inclined surface that is cut at a certain angle from both ends of the putter head to a certain position in the center, and a curved surface that is not cut, and the putter's weighting ring and semi-disk-shaped legs. is placed in the center behind the putter head body, and the left and right semi-disc legs are horizontally combined at both ends of the head body and parallel to the horizontal axis of the head body center, corresponding to the putter head sweet zone located in the center of the hitting surface in the center of the putter head body. A cylindrical golf putter head with a structure that allows for reciprocal transformation and displacement of the upper and lower vibrating forks of the vibrating body and the left and right forks of the tuning fork. delete A cylindrical golf putter head with a vibrating fork gap structure formed by cutting and processing a portion of a vibrating fork (fork), which is a modification of a tuning fork according to claim 1. The cylindrical golf putter head according to claim 1, wherein the striking surface and the entire vibrating body portion are made of brass or a brass alloy material. The cylindrical golf putter head according to claim 1 having an enlarged striking surface structure formed by leaving a step with the putter head body surface. The cylindrical golf putter head according to claim 1 or 5, which consists only of a vibrating body head integral with the head body and a vibrating fork structure. The cylindrical golf putter head according to claim 1, which has a structure consisting only of a head body, a weighted ring combined with the head body, and left and right semi-disc legs.