HEAD, PUTTER, AND PUTTING METHOD

Abstract

Provided are a head and a putter, including the head, which are aimed to increase putting accuracy. The head includes a face portion including a heel end and a toe end; a crown portion extended from the face portion in a rear direction of a top surface of the face portion; a sole portion extended from the face portion in a rear direction of a bottom surface of the face portion; and a first alignment portion formed at the crown portion so as to indicate a direction to a golfer, wherein an extension line of a surface of the face portion makes an acute angle with an extension line of the first alignment portion.

Description

CROSS-REFERENCE TO RELATED PATENT APPLICATION

This application claims the benefit of Korean Patent Application No. 10-2009-0055474, filed on Jun. 22, 2009, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a head, a putter and a putting method, and more particularly, to a head, a putter and a putting method which may increase putting accuracy.

2. Description of the Related Art

In golf, putting is the simplest swing method from among various swing methods but it requires high accuracy.

According to a conventional putting method, a golfer addresses a face of a putter so as to square the face in a target direction, and swings the putter with a pendulum stroke in the target direction, thereby sending a ball in the target direction. That is, the target direction matches with a swing path. In this manner, when the target direction matches with the swing path, 100% of the force transferred to a putter head may be delivered to the ball so that the golfer may directly control the ball to move in the target direction.

However, the conventional putting method causes golfers to have difficulty in terms of direction control and force control.

First, in terms of direction control, the golfer has to address the face of the putter so as to square the face in the target direction. At this time, the address varies according to a status of the green. Thus, in order to address accurately, the golfer has to be skilled in recognizing curves of a surface of the green. Also, in a swing motion, the golfer has to keep the face of the putter forming the square to an addressed direction at least for an impact moment. However, this requires high skill and accuracy such that golfers feel burdened.

Second, according to the conventional putting method, the force transferred to the putter head by the golfer is completely delivered to the ball so that the direction of the ball is highly affected although the golfer adds or removes a small force to the putter. Therefore, such a force control is also a burden to golfers.

Due to the aforementioned difficulties, a golfer must be highly skilled when putting, and even a highly skilled golfer may not accurately putt.

SUMMARY OF THE INVENTION

The present invention provides a head, a putter and a putting method which may increase putting accuracy.

The present invention also provides a head, a putter and a putting method by which even an unskilled golfer may increase his/her putting accuracy.

According to an aspect of the present invention, there is provided a head including a face portion including a heel end and a toe end; a crown portion extended from the face portion in a rear direction of a top surface of the face portion; a sole portion extended from the face portion in a rear direction of a bottom surface of the face portion; and a first alignment portion formed at the crown portion so as to indicate a direction to a golfer, wherein an extension line of a surface of the face portion makes an acute angle with an extension line of the first alignment portion.

The head may further include a second alignment portion formed at the crown portion so as to indicate a direction to the golfer, wherein an extension line of the second alignment portion is perpendicular to the extension line of the surface of the face portion.

The crown portion may further include a front portion having a width extended between the heel end and the toe end of the face portion, and an extension portion extended in a rear direction of the front portion, and the first alignment portion may be formed at the extension portion.

The crown portion may further include a front portion having a width extended between the heel end and the toe end of the face portion, and an extension portion extended in a rear direction of the front portion, and the second alignment portion may be formed at the front portion.

The head may further include a dial pad rotatably mounted on the crown portion, wherein the first alignment portion is formed at the dial pad.

The crown portion may include a second alignment portion extended in a rear direction of the face portion so as to be perpendicular to the extension line of the surface of the face portion, wherein the first alignment portion is extended to cross the center of the dial pad, and wherein an extension line of the second alignment portion matches the center of the dial pad.

According to another aspect of the present invention, there is provided a putter including the head; a shaft connected to the head; and a grip formed at the shaft.

According to another aspect of the present invention, there is provided a putting method including the operations of addressing the putter so as a face portion of a head of the putter is square to a first target; and swinging the putter so a ball travels toward a second target that is separated from the first target.

A hole may be located between the first target and the second target.

A distance between the hole and the first target may be shorter than a distance between the hole and the second target.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which:

FIG. 1 is a perspective view of a head according to an embodiment of the present invention;

FIG. 2 is a plane view of the head of FIG. 1;

FIG. 3 is a perspective view of a putter including the head of FIG. 1;

FIG. 4 is a diagram related to a general putting method according to prior art;

FIG. 5 is a diagram related to another general putting method according to prior art;

FIG. 6 illustrates a putting method according to an embodiment of the present invention;

FIG. 7 is a perspective view of a head according to another embodiment of the present invention;

FIG. 8 is an exploded perspective view of the head of FIG. 7; and

FIG. 9 is a plane view of the head of FIG. 7.

DETAILED DESCRIPTION OF THE INVENTION

Hereinafter, the present invention will be described in detail by explaining exemplary embodiments of the invention with reference to the attached drawings. Like reference numerals in the drawings denote like elements.

FIG. 1 is a perspective view of a head 20 according to an embodiment of the present invention. FIG. 2 is a plane view of the head 20 of FIG. 1. FIG. 3 is a perspective view of a putter including the head 20 of FIG. 1.

As illustrated in FIGS. 1 through 3, the head 20 according to the present embodiment includes a body 21 and a cylindrical rod 22 connected to the body 21.

The body 21 and the cylindrical rod 22 may be formed of a metal selected from the group consisting of stainless steel, titan, a titan alloy, carbon steel, bronze, and brass. The body 21 and the cylindrical rod 22 may be cast as one body or may be welded together.

As illustrated in FIG. 3, the cylindrical rod 22 has inserted therein a shaft 10. According to the present embodiment of FIG. 1, the cylindrical rod 22 is connected to an end of the body 21. However, a position of the cylindrical rod 22 on the body 21 is not limited thereto, and thus, the cylindrical rod 22 may be formed at other portions of the body 21. In this regard, a portion of a body on which the cylindrical rod 22 may be formed may be the same as that of a putter according to a prior art.

The body 21 includes a face portion 23, a crown portion 24, and a sole portion 25.

The face portion 23 is formed with a flat surface for hitting a ball. The face portion 23 and the body 21 may be formed as one body, or the face portion 23 may be separately manufactured by using a high elastic material such as tungsten or magnesium and then may be adhered to the body 21.

As illustrated in FIGS. 1 through 3, the face portion 23 has a heel end 29 near to a golfer, and a toe end 26 at an opposite end to the heel end 29.

The crown portion 24 is extended from the face portion 23 in a rear direction of a top surface of the face portion 23. In the present embodiment, the crown portion 24 is defined as a top surface of the body 21, which is exposed to a golfer.

The crown portion 24 includes a front portion 27 and an extension portion 28. The front portion 27 has a width extended between the heel end 29 and the toe end 26 in a rear direction of the face portion 23. The extension portion 28 is further extended than the front portion 27 from the center of the face portion 23. The extension portion 28 may be extended from a rear side of the face portion 23 in such a manner that the front portion 27 may cover a portion of the extension portion 28. The front portion 27 indicates a top surface extending from the face portion 23 in a rear direction so as to be exposed to a golfer, and to the golfer, the extension portion 28 corresponds to a portion extended in a rear direction of the face portion 23. As illustrated in FIGS. 1 through 3, the extension portion 28 may be extended in the rear direction of the face portion 23 while having a width smaller than a length between the heel end 29 and the toe end 26. However, the shape of the extension portion 28 is not limited thereto, and thus, the extension portion 28 may be extended from the heel end 29 and the toe end 26 in the rear direction while having an undefined shape.

The sole portion 25 indicates a surface of the body 21, which faces the ground.

According to the present embodiment, the crown portion 24 includes a first alignment portion 31.

The first alignment portion 31 corresponds to a mark that indicates a direction, and as illustrated in FIGS. 1 through 3, and a straight line-shaped groove may be used as the mark. However, the shape of the first alignment portion 31 is not limited thereto, and thus, various types of marks capable of indicating a direction to a golfer may be used as the first alignment portion 31. For example, the straight line may not be a single line but may be a plurality of parallel lines, or may be a plurality of symbols (e.g., ball-shaped symbols) that are disposed inline. Also, the crown portion 24 and the first alignment portion 31 may be formed as one body. That is, the crown portion 24, in particular, the extension portion 28 itself may form the first alignment portion 31 by being extended in a specific direction.

As illustrated in FIG. 2, an extension line of the first alignment portion 31 makes an acute angle θ with the surface of the face portion 23. Thus, in the case where the first alignment portion 31 has the shape of the straight line-shaped groove as illustrated in FIG. 2, an extension direction of the straight line-shaped groove makes an acute angle θ with an extension direction of the surface of the face portion 23. Also, in the case where the first alignment portion 31 has the shape of a plurality of parallel lines, the parallel lines make an acute angle with the extension direction of the surface of the face portion 23. In the case where the first alignment portion 31 has the shape of a plurality of symbols that are disposed inline, a line connecting the centers of the symbols makes an acute angle with the extension direction of the surface of the face portion 23. The acute angle means that a minimum angle formed between the extension direction of the surface of the face portion 23 and the extension direction of the first alignment portion 31 is an acute angle.

Meanwhile, according to the present embodiment, the crown portion 24, in particular, the front portion 27 may have formed therein a second alignment portion 32.

The second alignment portion 32 also corresponds to a mark for indicating a direction to a golfer, and as illustrated in FIGS. 1 through 3, and may be a straight line-shaped groove. Similar to the first alignment portion 31, the shape of the second alignment portion 32 may vary as long as the second alignment portion 32 indicates the direction to the golfer.

According to the present embodiment, the second alignment portion 32 is perpendicular to the surface of the face portion 23.

As illustrated in FIG. 3, an end of the shaft 10 is inserted into the cylindrical rod 22 of the head 20 formed as described above, and a grip 11 is formed at the other end of the shaft 10 to complete the formation of the putter.

The head 20 and the putter according to the present embodiment are very effective for a putting method according to an embodiment of the present invention.

The putting method according to the embodiment of the present invention will now be described.

Before describing the putting method according to the embodiment of the present invention, a general putting method according to prior art will be described with reference to FIGS. 4 and 5.

As illustrated in FIG. 4, a golfer sets a straight line connecting a ball B and a hole H in a target direction T. At this time, it is assumed that the green between the ball B and the hole H is flat.

Next, the golfer addresses a face portion F of a putter to be square to the target direction T.

After that, the golfer swings the putter with a pendulum stroke. At this time, the golfer has to match a swing path and the target direction T, and at the moment when the putter impacts the ball B, the face portion F has to be square to the target direction T.

FIG. 5 illustrates a swing method in which a swing path S is a circular form having a predetermined curvature. In this case, at the moment when a putter impacts a ball B, a face portion F has to be square to the target direction T.

FIG. 6 illustrates the putting method according to the embodiment of the present invention.

First, a golfer sets a first target T1 and a second target T2 which are imaginary targets around a hole H and are separated from each other by a distance, and thus, the hole H is located between the first target T1 and the second target T2. The first target T1, the center of the hole H, and the second target T2 may be aligned in a straight line; however the present embodiment of the present invention is not limited thereto, the first target T1, the center of the hole H, and the second target T2 may be aligned in a curved line.

The first target T1 is a guiding target for aligning the face portion 23 of the head 20 to be square when putting.

The second target T2 is a pseudo target for establishing a swing path in which the golfer swings.

Here, the swing path indicates a path in which a putter head travels to hit a ball B, and is generally divided into before impact, impact, and follow-through after impact. Hereinafter, with respect to the putting method according to the present embodiment, it is assumed that the swing path is a straight line. Also, a direction from the ball B to the first target T1 indicates a first target direction, and a direction from the ball B to the second target T2 indicates a second target direction.

A distance between the first target T1 and the hole H may be less than a distance between the second target T2 and the hole H. A ratio of the distances may vary according to a curvature of the surface of the green. For example, when the green is flat and the distance between the ball B and the hole H is 1 m, a side end of the hole H may be separated from the first target T1 by 1 cm and the other side end of the hole H may be separated from the second target T2 by 11 cm.

After that, the face portion 23 of the head 20 is addressed to face the first target T1. That is, the face portion 23 is square to the first target direction. At this moment, the golfer swings the putter in the second target direction. Thus, the swing path S indicates a pseudo line connecting the ball B and the second target T2. Specifically, as illustrated in FIG. 6, the swing path S indicates a pseudo line connecting the second target T2 and a tangential line to the ball B. Thus, the golfer swings the putter to follow the tangential line to the ball B.

The putting method according to the present embodiment involves generating regular distortion to a traveling path of the ball B by facing the face portion 23 to the first target T1 and by swinging the putter toward the second target T2. By generating such regular distortion to the traveling path of the ball B, the putting method may involve controlling the ball B and moving the ball B in a desired direction.

When the golfer swings the putter toward the second target T2, the ball B travels toward a center point of an angle between the first target direction and the swing path S. That is, after impact, the ball B travels toward a center point between the first target T1 and the second target T2. To which one from among the first target T1 and the second target T2 that the ball B reaches closer and how close the ball B is depends on a distance between the ball B and the hole H, and the amount of spin that is put on the ball B.

With respect to a right-handed person, a sidespin rotates the ball B in a clockwise direction. That is, the putting method according to the present embodiment involves separating the swing path S from the target direction with respect to the face portion 23, in such a manner that the golfer hits the ball B with a clockwise sidespin, and thus, the ball curves to the right.

Thus, as illustrated in FIG. 6, a travel path P of the hit ball B forms a gentle “S-curve” or “C-curve”. Although it is difficult to distinctly and scientifically explain why the ball B travels while forming the “S-curve” or “C-curve”, it is assumed that it is due to interaction between a straight drive force and a rotatory drive force, wherein the straight drive force is by a swing toward the second target T2 and the rotatory drive force is generated since the face portion 23 faces the first target T1.

That is, the amount of the clockwise sidespin that is put on the ball B right after impact is very small, thereby rotating the ball B only for one third or quarter of a rotation. However, at the moment of impact, the ball B is highly affected by the straight drive force generated by the swing that follows the swing path S. Thus, at the moment of the impact, 70%-80% of the amount of the clockwise sidespin is lost such that the rotatory drive force loses its effect due to the straight drive force. However, at a point in which the straight drive force becomes small, the remaining amount of the clockwise sidespin changes a travel direction of the ball B. Thus, the travel path P of the ball B is toward the hole H while forming the gentle “S-curve” or “C-curve”.

In this manner, the putting method according to the present embodiment involves diagonally hitting the ball B. According to the putting method, a force of impact on the ball B from the head 20 is small, which may be a great advantage to golfers who have difficulty in controlling their power in long distance putting to a hole.

This advantage is clearly understandable with a case in which a golfer putted with 90% of power instead of 100% of intended power. That is, if it is assumed that a ball may travel a 10 m distance with 100% of the intended power when putting such that a face portion is square to a target, and the golfer putts with 90% of power by mistake, the ball only travels a 9 m distance, and thus, the ball reaches a point that is 1 m away from a target. That is, a distance difference between an intended distance and a really reached distance is 1 m. This occurs since 100% of a swing force is delivered to the ball when putting such that the face portion is square to the target (hereinafter, this putting is referred to as ‘square putting’).

However, in the case where a ball is hit diagonally according to the putting method of the present invention, only about 70% of a swing force is delivered to the ball so that the ball may travel about 7 m with 100% of power of a golfer and the ball may travel about 6.3 m with 90% of power. Thus, when the golfer putts with 90% of power but intended to putt with 100% of power, a distance difference between the intended distance and the really reached distance is only about 70 cm. Thus, the putting method according to the present embodiment reduces a difference of about 30 cm, compared to square putting.

If this theory is used in a reversed manner, and square putting requires 200% of intended power for 20 m putting, the putting method according to the present embodiment requires 286% of intended power. In order to allow a ball to travel into a circle having a radius of 1 m around a hole, a square putting method requires power to be adjusted in a range between 190% through 210%, whereas the putting method according to the present embodiment requires power to be adjusted in a range between 271% through 300%. That is, when 20 m long putting is performed to make a ball travel into an area having a radius of 1 m, wherein the area is guaranteed for ‘concede’, a tolerance range to a power allowed for the golfer is 20% according to the square putting method; however, it is 29% according to the putting method of the present embodiment, meaning that, although the golfer fails to perform a subtle power control, the putting method according to the present embodiment may result in that the ball has a high chance of stopping close to the hole.

Meanwhile, the putting method according to the present embodiment may increase the allowable tolerance range of the golfer with respect to power control, and may give the golfer an effect that the size of the hole was enlarged.

That is, referring to FIGS. 4 and 5, in order to make the ball B travel into the hole H by using the square putting method, the ball B should not deviate from a range in a path of the ball B, wherein the range corresponds to a radius of the hole B. Hereinafter, a range within which a ball may travel into a hole even if the ball has deviated from its path is referred to as a ‘forgiveness range’. Referring to FIGS. 4 and 5, in order for the ball B to travel into the hole H, even if the ball B deviates from a line connecting the ball B and the target T, the ball B cannot travel into the hole H if the ball B deviates from the radius of the hole B. Thus, with respect to the square putting method, the forgiveness range is no more than the radius of the hole B.

On the other hand, as illustrated in FIG. 6, according to the putting method of the present embodiment, the ball B tends to rotate in a clockwise direction, and thus, a range between the center of the hole H and the second target T2 is a forgiveness range which is three times wider than the forgiveness range of the square putting method. In this manner, the putting method according to the present embodiment may be relatively tolerate a mistake of the golfer with respect to direction, and thus, may increase a rate of hitting a ball into a hole by three times higher than the square putting method.

Meanwhile, according to the putting method of the present embodiment, the golfer may swing the putter according to the square putting method while addressing his/her body in the second target direction, as described with reference to FIG. 6, or may swing the putter in an outside-to-inside direction while addressing his/her body toward the hole H, and thus, the swing is much easier.

The putting method of the present embodiment may be sufficiently performed with a general putter, but the putting method of the present embodiment is more effective by using the putter according to the previous embodiment described with reference to FIGS. 1 through 3.

That is, when the golfer addresses with the putter according to the previous embodiment described with reference to FIGS. 1 through 3, the second alignment portion 32 is toward the first target T1 and the first alignment portion 31 is toward the second target T2. At this time, the golfer swings the putter according to an extending direction of the first alignment portion 31. Thus, the golfer may simply swing the putter to diagonally-hit the ball, according to the putting method of the present embodiment.

FIGS. 7 through 9 are diagrams of a head 20 according to another embodiment of the present invention. Like reference numerals in FIGS. 7 through 9 denote like elements and thus their description will be omitted.

Unlike the previous embodiment described with reference to FIGS. 1 through 3, the head 20 further includes a dial pad 40 that is rotatably mounted on the crown portion 24. The dial pad 40 has formed thereon a first alignment portion 31 that is extended to cross the center of the dial pad 40. The first alignment portion 31 and the dial pad 40 are arranged in such a manner that a user may grip and turn the first alignment portion 31 with the user's hand. The dial pad 40 may be mounted in the crown portion 24 in such a manner that the center of the dial pad 40 matches an extension line of the second alignment portion 32.

As illustrated in FIG. 8, an inlet groove 43 is formed in the extension portion 28, in such a manner that the inlet groove 43 is inlet toward the sole portion 25. A coupling hole 45 is formed in the center of the inlet groove 43. A plurality of second stoppers 44 are formed along an inner sidewall of the inlet groove 43 so as to adjust a rotation angle of the dial pad 40. As illustrated in FIG. 8, the plurality of second stoppers 44 may be mutually connected in a jagged manner.

A coupling protrusion 41 is formed at the center of a bottom surface of the dial pad 40 so as to insert into the coupling hole 45. The coupling protrusion 41 and the coupling hole 45 may be wedge-shaped so as not to be easily separated after being coupled to each other. A first stopper 42 is formed at an edge of the bottom surface of the dial pad 40 so as to adjust the rotation angle of the dial pad 40 by being engaged with one of the plurality of second stoppers 44. The first stopper 42 may have predetermined elasticity in such a manner that, when the user turns the dial pad 40, the first stopper 42 may be smoothly engaged with one of the plurality of second stoppers 44.

According to the head 20 illustrated in FIG. 9, since the user may turn the dial pad 40 having formed thereon the first alignment portion 31, it is possible to freely change an angle between the first alignment portion 31 and the face portion 23.

Thus, when a golfer putts according to the putting method of the embodiment of FIG. 6, the golfer may easily hit the first alignment portion 31 in a direction of a second target T2 which is established by the golfer.

Obviously, when the golfer attempts to do the general square putting by using a putter including the head 20 according to the current embodiment, the golfer may align the first alignment portion 31 with the second alignment portion 32. By doing so, the first alignment portion 31 and the second alignment portion 32 are on a straight line, and then the golfer may swing the putter along the first alignment portion 31 and the second alignment portion 32.

The user may pre-set the first alignment portion 31 based on a desired angle and then play a game. That is, before playing the game, the user may practice putting and then adjust an angle of the first alignment portion 31 according to his/her condition with respect to the putting practice and a status of the green. After that, the user may fix the angle and play the game. By doing so, the user may putt by using the putter and the putting method according to the embodiments, without violating a golf rule.

According to the putting method of the current embodiment, it is easy to perform a distance control; in particular, with respect to long distance putting, it is easier to perform the distance control.

Also, when a golfer putts, the putting method involves a sidespin hit to a ball in such a manner that the ball may travel to a hole as if the ball were guided to the hole, and the golfer may experience an effect that the size of the hole was enlarged.

In addition, even if the golfer makes a mistake, a putting success rate may increase.

Also, a putting swing may be easily done.

The head and the putter including the head according to the present invention are highly appropriate for the putting method of the present invention.

Also, when the user uses the dial pad, the user may select a putting method at discretion, and when the user selects the putting method according to the present invention, the user may arbitrarily establish the first target and the second target and then may directly adjust the first target and the second target.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.

Claims

1. A head comprising:

a face portion comprising a heel end and a toe end;

a crown portion extended from the face portion in a rear direction of a top surface of the face portion;

a sole portion extended from the face portion in a rear direction of a bottom surface of the face portion; and

a first alignment portion formed at the crown portion so as to indicate a direction to a golfer,

wherein an extension line of a surface of the face portion makes an acute angle with an extension line of the first alignment portion.

2. The head of claim 1, further comprising a second alignment portion formed at the crown portion so as to indicate a direction to the golfer,

wherein an extension line of the second alignment portion is perpendicular to the extension line of the surface of the face portion.

3. The head of claim 1, wherein the crown portion further comprises a front portion having a width extended between the heel end and the toe end of the face portion, and an extension portion extended in a rear direction of the front portion, and

wherein the first alignment portion is formed at the extension portion.

4. The head of claim 2, wherein the crown portion further comprises a front portion having a width extended between the heel end and the toe end of the face portion, and an extension portion extended in a rear direction of the front portion, and

wherein the second alignment portion is formed at the front portion.

5. The head of claim 1, further comprising a dial pad rotatably mounted in the crown portion,

wherein the first alignment portion is formed at the dial pad.

6. The head of claim 5, wherein the crown portion comprises a second alignment portion extended in a rear direction of the face portion so as to be perpendicular to the extension line of the surface of the face portion,

wherein the first alignment portion is extended to cross the center of the dial pad, and

wherein an extension line of the second alignment portion matches the center of the dial pad.

7. A putter comprising:

a head;

a shaft connected to the head; and

a grip formed at the shaft,

wherein the head comprises: a face portion comprising a heel end and a toe end; a crown portion extended from the face portion in a rear direction of a top surface of the face portion; a sole portion extended from the face portion in a rear direction of a bottom surface of the face portion; and a first alignment portion formed at the crown portion so as to indicate a direction to a golfer, wherein an extension line of a surface of the face portion makes an acute angle with an extension line of the first alignment portion.

8. The putter of claim 7, further comprising a second alignment portion formed at the crown portion so as to indicate a direction to the golfer,

wherein an extension line of the second alignment portion is perpendicular to the extension line of the surface of the face portion.

9. The putter of claim 7, wherein the crown portion further comprises a front portion having a width extended between the heel end and the toe end of the face portion, and an extension portion extended in a rear direction of the front portion, and

wherein the first alignment portion is formed at the extension portion.

10. The putter of claim 8, wherein the crown portion further comprises a front portion having a width extended between the heel end and the toe end of the face portion, and the extension portion extended in a rear direction of the front portion, and

wherein the second alignment portion is formed at the front portion.

11. The putter of claim 7, further comprising a dial pad rotatably mounted on the crown portion,

wherein the first alignment portion is formed at the dial pad.

12. The putter of claim 11, wherein the crown portion comprises a second alignment portion extended in a rear direction of the face portion so as to be perpendicular to the extension line of the surface of the face portion,

wherein the first alignment portion is extended to cross the center of the dial pad, and

wherein an extension line of the second alignment portion matches the center of the dial pad.

13. A putting method comprising:

addressing the putter so as a face portion of a head of the putter is square to a first target; and

swinging the putter so a ball travels toward a second target that is separated from the first target.

14. The putting method of claim 13, wherein a hole is located between the first target and the second target.

15. The putting method of claim 14, wherein a distance between the hole and the first target is shorter than a distance between the hole and the second target.