KR100424506B1 - Head of Golf Club - Google Patents

Abstract

We propose a golf club head that can improve the durability of the golf club and improve the flying distance at the time of hitting.

The golf club head has a main body, a hitting surface for hitting a golf ball, and the rear surface of the hitting surface has an elastic portion formed in a trench shape in which the central portion is gradually lowered toward the hitting surface side and a protrusion formed in the center of the elastic portion.

According to such a golf club head, even if the golf club is used continuously, the phenomenon of cracking or sinking in the neck of the hitting surface can be prevented.

Description

Golf club head {Head of Golf Club}

The present invention relates to a golf club, and more particularly, to a golf club head that can improve the durability of the golf club and the hitting distance when hitting.

Generally, a golf club consists of a grip for a user to hold and use a golf club, a head for hitting a golf ball, and a shaft connecting the grip and the head. Golf clubs can be classified into wood, iron, and putter depending on their intended use, and each has various shapes and sizes.

1 is a view for explaining the structure of a typical golf club, the enlarged head portion. As shown, the head 20 is connected to the lower end of the shaft 10 by the socket 26, the lower end of the socket 26 includes a head surface 22 and the head surface 24 of the batting surface 24 28 is formed integrally.

When the golf ball placed on the fairway or the green is hit by the hitting surface 22 of the head 20 using such a golf club, the golf ball proceeds in a desired direction by the impact force and the repulsive force at this time. Since the golf club may vary in the distance and direction of the golf ball in accordance with the volume of the head 20 and the inclination of the hitting surface 22, the golf club should be selected according to each situation.

An important factor in a golf game is the high quality golf that delivers the distance to hit the golf ball as far as possible at the first time and the accuracy of hitting the golf ball in the desired direction, as well as the impact that is transmitted to the golfer's hand through the golf club. Is to use the club.

In particular, it is important to hit the golf ball as far as possible in the desired direction by using a golf club having a good flying distance at the time of the first hit, so that the distance is limited because the conventional golf club is limited in size and volume of the head. And there is a problem that the vibration of the head is transmitted to the grip when the blow is not good feel. Accordingly, in recent years, various materials have been used to manufacture the head or to modify the structural shape of the head in order to improve flying distance and accuracy. For example, a golf club formed by forming wood with metal or recessing the back of the head is used. However, such a golf club is also a situation that is only a simple improvement that extends the golf ball contacting the golf ball far away, there is a problem that is difficult for beginner golfers in particular.

Accordingly, the present applicant has proposed a Korean Patent Registration No. 1999-0215992 for the purpose of improving the flying distance and the feeling of hitting, and the Korean Patent Application No. 2000-0003289 is under examination. First, Korean Patent Registration No. 1999-0215992 is characterized in that a plurality of stepped grooves having a predetermined depth is formed on the back surface of the hitting surface constituting the golf club head. According to the registered patent there is an advantage that the elastic force and elastic restoring force is increased when the golf ball is hit by the stepped groove formed on the back surface of the hitting surface to improve the flying distance.

In addition, the Korean Patent Application No. 2000-0003289 is composed of the golf club head's hitting surface and the main body in a separate type, and forms a coupling member for moving the center of gravity of the head on the toe of the head body, There is proposed a golf club head having a structure in which a coupling hole is formed in a corresponding hitting surface to combine the hitting surface and a main body. According to this patent application, the dropping speed of the head is increased by the weight of the coupling member, so that a precise shot is possible. In addition, when the stepped groove provided in the registered patent is formed on the rear surface of the hitting surface, it is also possible to obtain the effect that the flying distance is improved.

However, in the registered patent, as the groove is formed on the rear surface of the batter surface, the thickness of the sweet spot is made thin. Accordingly, if the golf club is used continuously, there is a problem in that stress is concentrated in the center portion of the hitting surface such as a sweet spot, causing cracking or sinking.

The present invention has been made to solve the above problems, there is a technical problem to improve the durability of the golf club by forming a protrusion in the center of the groove formed on the back of the hitting surface.

Another technical problem of the present invention is to provide a golf club head which can improve the elastic repulsive force at the time of hitting and improve the direction during the golf ball by the grooves and protrusions formed on the back of the hitting surface.

1 is a perspective view for explaining the structure of a typical golf club,

2 is a perspective view illustrating the structure of a golf club to which a golf club head is applied according to the present invention;

3a to 3h are views for explaining the structure of a golf club head according to an embodiment of the present invention,

Figure 4 is a perspective view for explaining another structure of a golf club to which a golf club head according to the present invention is applied.

<Description of the symbols for the main parts of the drawings>

10: shaft 20: head

22: batting surface 24: back

26 socket 28 body

30: elastic portion 32: step portion

34, 36, 38: projection part 40: recessed part

42: coupling member 44: coupling hole

100: protrusion

The present invention for achieving the above-described technical problem is a golf club head coupled to the grip by the shaft, having a main body and a hitting surface for hitting the golf ball, the rear surface of the hitting surface gradually toward the center of the hitting surface side An elastic portion formed in a lower trench shape; And a protrusion formed at the center of the elastic portion. It is provided.

The present invention also provides a golf club head coupled to a grip by a shaft, the golf club head having a main body and a hitting surface for hitting a golf ball formed separately from the main body, and a recess for placing the hitting surface; A coupling member formed on the tow of the main body; A coupling hole formed at a position corresponding to the coupling member of the batter surface to couple with the coupling member; An elastic part formed on a rear surface of the batter surface and having a central portion formed in a trench shape gradually lowering toward the batter surface; And a protrusion formed at the center of the elastic portion.

Here, the protrusion may be formed in any one of the shape of hemispherical, conical, pyramidal, cylindrical, prismatic, the elastic part is hemispherical, hemispherical with steps, hemispherical with steps and protrusions, steps, Steps, cones or pyramids with protrusions, cones or pyramids with protrusions, can be formed in the form of a plurality of concentric circles of different diameters with the central part of the spherical surface being concentric. It is desirable to form a heavy material.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, the same reference numerals are used for the same or similar components.

2 is a perspective view illustrating the structure of a golf club to which a golf club head according to the present invention is applied, and shows a case in which the protrusion 100 is formed on the rear surface 24 of the hitting surface 22.

As shown, the head 20 is connected to the lower end of the shaft 10 by a socket 26, and the lower end of the socket 26 includes a head surface 22 and a back surface 24 of the ball surface ( 28 is integrally formed.

In addition, an elastic portion 30 is formed on the rear surface 24 of the batter surface, and a protrusion 100 is formed at the center of the elastic portion 30. The elastic portion 30 may be any shape as long as the center portion is a trench shape recessed toward the hitting surface 22 side, and may be manufactured in various shapes, for example, hemispherical shape (FIG. 3A), a hemispherical shape having a step portion (FIG. 3B), Hemispherical (Fig. 3c) with steps and projections (step 3d), stepped with projections (Fig. 3e), cone or pyramid (Fig. 3f), cone or pyramid with projections (Fig. 3c) 3g). In addition, the elastic part 30 may be manufactured in a form in which a plurality of concentric circles having different diameters are formed with the central portion of the hitting surface 22 as the concentric, even if not in the trench shape. Various shapes of the elastic portion 30 will be described later. On the other hand, the protruding portion 100 can be produced in any possible form, such as hemispherical, conical, pyramidal, cylindrical, prismatic, and has a diameter of the contact area when the golf ball is in contact with the batting surface (22).

3A to 3H are views for explaining the structure of the golf club head according to the embodiment of the present invention, and show a state in which the protrusion part 100 is formed at the center of the elastic part 30 of various structures.

Referring to FIG. 3A, the elastic part 30 of the present embodiment has a back surface 24 formed in a hemispherical trench shape, and the protrusion part 100 has a hemispherical shape, a cone shape, a pyramid shape, and a cylindrical shape in the center of the elastic part 30. It can be produced in all possible forms, such as a prismatic cylinder. In addition, the diameter of the protrusion 100 may be formed to the extent of the contact area between the golf ball and the hitting surface 22.

In the case of using a golf club having a head having such a structure, elasticity is stored in the protrusion 100 and the elastic part 30 when the golf ball is in contact with the hitting surface 22, and the protrusion 100 is instantaneously when the golf ball is blown. While recovering to the initial position, the elastic repulsion force is generated in the protrusions and the elastic portion 30 is transmitted to the golf ball to improve the flying distance. In addition, the elasticity generated in the relatively thin portion than the protrusion 100 around the protrusion 100 collects the golf ball to the center, thereby improving the flying distance as well as the direction of the hitting. That is, by forming the protruding portion 100 in the center of the rear surface 24, even if the golf ball does not exactly fit the center of the hitting surface 22, it is possible to obtain the effect of collecting the golf ball to the center. In addition, since the sweet spot portion of the hitting surface 22 that is frequently hit by the golf ball is formed thicker than the other portion, it is possible to prevent cracks or depressions from occurring in the center of the hitting surface 22.

FIG. 3B illustrates a case where the step portion 32 is formed on the inner circumferential surface of the elastic portion 30 of the head 20 shown in FIG. 3A. As such, the protrusion 100 may be formed at the center of the elastic part 30 having the step part 32 to improve the distance and directionality at the time of hitting and to prevent the crack of the hitting surface.

When hitting a golf ball using the elastic part 30 having the step part 32 and the head provided with the protrusion part 100, the protrusion part 100 which is the center of the step part 32 moves to the back surface 24 side. With bending, elastic force is stored in the step portion 32 from the periphery of the protrusion 100, and the elastic restoring force generated as the protrusion 100 and the step portion 32 recover to the initial position at the moment the golf ball flies by the impact force is the golf ball. Will be delivered. In addition, since the center of the elastic part 30 is formed by the protrusion 100 thickly, the force generated around the protrusion 100 is collected to the center to improve the directivity. Accordingly, the golf ball is improved by the impact force on the hitting surface 22 of the head 20, the elastic restoring force of the elastic portion 30 and the protrusion 100, the direction is excellent.

In addition, the protrusion 100 formed in the sweet spot portion of the batting surface 22 suppresses a phenomenon such as cracking of the batting surface 22 or depression of the center of the batting surface 22 even in repeated batting. It is possible to improve the durability of the club.

3C illustrates the golf club head 20 in which the step portion 32 is formed on the inner circumferential surface of the hemispherical elastic portion 30 formed on the rear surface 24 and the protrusion 34 is formed on the end of the step portion 32. It is for the drawing. In this embodiment as well, by forming the protrusion 100 in the center of the elastic portion 30 can improve the distance and directionality when hitting, as well as protect the hitting surface 22 of the head 20 from impact.

In the case of batting using the golf club to which the head shown in FIG. 3C is applied, vibration occurs in the hitting surface 22, and when the vibration spreads outward from the center of the elastic part 30, As the generated vibration is reflected from the neighboring protrusion 34 and scattered, the process of repeating the vibration is repeated. Accordingly, the vibration generated in the head 20 gradually disappears and is not transmitted to the grip, thereby improving the feeling of hitting.

3D is a view for explaining the case where the elastic portion 30 is formed in a step shape. When the rear surface 24 of the head 20 according to the present embodiment is observed from the cross-section, the head 20 is formed by forming a step portion 32 gradually lowered to a constant depth toward the center surface from the peripheral portion to the central portion, and the rear surface 24 is faced. Observed as, it appears in the form of a number of concentric circles (or polygons with the same center) whose diameter gradually increases from the center. The protruding portion 100 may be manufactured in all possible forms such as hemispherical, conical, pyramidal, cylindrical, and prismatic in the center of the elastic portion 30.

When hitting a golf ball using a golf club having a head 20 having such a structure, the elastic force is stored around the protrusion 100 formed in the center of the elastic portion 30, the moment the golf ball flies with an impact force The protrusion 100 transmits the elastic restoring force to the golf ball. Accordingly, the flying force is increased by the impact force at the hitting surface 22 of the head 20 and the elastic restoring force of the elastic portion 30, and thus the flying distance is improved.

In addition, the protrusion 100 formed in the sweet spot portion of the batting surface 22 suppresses a phenomenon such as cracking of the batting surface 22 or depression of the center of the batting surface 22 even with repeated batting. It is possible to improve the durability.

3E shows an example in which the elastic portion 30 is configured in a step shape having a protrusion 34. The head 20 of such a structure can be manufactured by forming the protrusion part 34 in the one end part of the step part 32 in the elastic part 30 of a structure as shown in FIG. 3D. In the head 20 of this structure, the rear surface 24 has a plurality of concentric circles (or polygons of the same center) that are gradually increased in diameter from the center, arranged stepwise, and the ends of each of the concentric circles (or polygons of the same center) are constant. It becomes the form which has the protrusion part 34 of height. Also in the present embodiment, as shown in FIG. 3D, the protrusion 100 is formed at the center of the elastic part 30.

In the case of batting using a golf club to which the head shown in FIG. 3e is applied, vibration occurs in the hitting surface 22, and when the vibration spreads outward from the center of the elastic part 30, it occurs in the step part 32. As the vibration is reflected and scattered from the neighboring protrusions 34, the process of reducing the vibration is repeated. Accordingly, the vibration generated in the head 20 gradually disappears and is not transmitted to the grip, thereby improving the feeling of hitting.

3F illustrates a case in which the protrusion part 100 is formed at the center of the elastic part 30 when the elastic part 30 is manufactured in the shape of a cone or a pyramid. In addition, in FIG. 3G, the protrusion 100 is formed at the center of the elastic part 30 having the protrusion 36 by forming the protrusions 36 at regular distances on the inclined surface of the elastic part 30. The example which formed the is shown. 3D and 3E, respectively, the distance and directionality at the time of hitting can be improved, and the hitting surface 22 can be protected from the impact by the protrusion 100. In addition, in the case of the head 20 illustrated in FIG. 3G, as the vibration generated at the time of hitting is extinguished by the protrusion 36, there is an advantage in that the hitting rate can be improved.

FIG. 3H illustrates a plurality of concentric circles having different diameters formed on the rear surface 24 of the batting surface 22 with the center of the batting surface 22 concentric, and the protrusion 100 being formed at the center of the batting surface 22. It is a figure for demonstrating a case. Reference numeral 38 denotes a projection observed by a plurality of concentric circles in the cross section of the head 20.

In the case of batting using the head 20 having such a structure, the elastic force generated when the golf ball is in contact with the hitting surface 22 is stored in the protrusion 100 while spreading around the protrusion 100 to the back surface 24. Stored in a plurality of concentric circles, the elastic repulsion force generated as the projecting portion 100 is restored to the initial position at the moment the golf ball is flying is transmitted to the golf ball, resulting in an increased distance.

In addition, since the elastic force and the elastic repulsion force stored and generated in the protrusion 100 are smaller than the elastic force and the elastic repulsive force generated around the protrusion 100, the elastic force is gathered toward the center of the hitting surface 22 so that the golf ball is oriented when flying. This will be improved. In addition, the vibration generated at the time of hitting is extinguished in the projections 38 can improve the feeling of hitting.

3A to 3H, the protrusion 100 is not formed separately from the hitting surface 22 at the center of the rear surface of the hitting surface 22, but preferably formed integrally with the hitting surface 22.

4 is a perspective view illustrating another structure of a golf club to which a golf club head according to the present invention is applied, and a hitting surface 22 having an elastic portion 30 and a protrusion 100 formed on a rear surface 24 of a head 20. ) And the case of separate production.

As shown, the hitting surface 22 of the golf club head 20 according to another embodiment of the present invention is manufactured separately from the body 28. An elastic portion 30 is formed on the back surface 24 of the batting surface 22, which has a hemispherical shape, a hemispherical shape with a stepped portion, a hemispherical shape with a stepped portion and a protrusion, a stepped portion, and a protrusion as described in FIG. It can be formed in the form of a plurality of concentric circles having different diameters with the center of one step, the center surface of the hitting surface (22). Protruding portion 100 is formed in the center of the elastic portion 30 can be manufactured in any possible form, such as hemispherical, conical, pyramidal, cylindrical, prismatic.

On the other hand, the main body 28 is formed with a concave inlet portion 40 for placing the hitting surface 22 and a coupling member 42 for moving the center of gravity of the head 20 to the toe side of the head 20 And the coupling hole 44 is formed at a position corresponding to the coupling member 42 of the rear surface 24 of the hitting surface 22 so that the hitting surface 22 may be coupled to the recessed portion 40 of the main body 28. Make sure Here, the coupling member 42 is preferably formed of a heavier material than the body 28.

In the present embodiment, by forming the hitting surface 22 in a separate form from the main body 28, the elastic portion 30 can be easily formed on the back surface 24 of the hitting surface 22, and the head 28 Coupling member 42 for moving the center of gravity of the 20 can be laid. The reason for moving the center of gravity of the head 20 is to reduce the mistake of the ball generated when the golf player does not face the falling point due to the tension of the body when hitting the golf ball, the head body 28 rotates to the left or right. .

That is, by laying the coupling member 42, the center of gravity of the head 20 is moved to the coupling member 42, the moment of inertia is increased by hitting the ball to increase the swing speed of the head as well as to extend the distance, golf Even when the ball is in contact with the hitting surface, the slice and side spins caused by the open swing caused by the head body being pushed backward or rotated toward the hitter's body can be reduced. Accordingly, even beginners can easily handle golf clubs, so that they can easily acquire a sense of hitting.

Furthermore, in the present invention, since the protrusion 100 is formed at the center of the elastic portion 30 formed on the rear surface 24, the phenomenon in which the batter surface is cracked or recessed even in the continuous use of the golf club can be prevented.

As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

As described above, according to the present invention, the elastic part is formed on the back surface of the golf club head, and the protrusion is formed at the center of the elastic part, so that the crack occurs or sinks in the neck of the hit surface even when the golf club is continuously used. Can be prevented to improve the durability of the golf club.

In addition, by the elastic portion formed on the back surface of the batter can extend the distance when hitting, attenuate the vibration generated when hitting can minimize the amount of vibration transmitted to the grip to improve the feel.

In addition, the shot surface having the elastic portion and the protrusion is made of the head body and the separate type, and by placing a coupling member for moving the center of gravity on the toe (toe) portion of the main body it is possible to elaborate shot.

Claims (21)

A golf club head coupled with a grip by a shaft, the golf club head having a main body and a hitting surface for hitting a golf ball, The rear surface of the hitting surface is an elastic portion formed in a trench shape in which the central portion is gradually lowered toward the hitting surface side; And Protruding portion formed in the center of the elastic portion; Golf club head having a. According to claim 1, The elastic portion is a golf club head of a hemispherical trench shape. According to claim 1, The elastic part is formed in a hemispherical trench shape, the golf club head having a plurality of steps formed on the inner peripheral surface of the hemispherical trench. According to claim 1, The elastic part is formed in a hemispherical trench shape, the golf club head having a plurality of steps formed on the inner circumferential surface of the hemispherical trench and protrusions formed at each end of the step. According to claim 1, The elastic portion is a golf club head having a stepped trench shape. According to claim 1, The elastic portion is a step portion gradually lowered to a constant depth toward the batter surface toward the center from the peripheral portion; And A protrusion formed at an inner end of the step portion; Golf club head having a. According to claim 1, The golf club head is formed in a conical or pyramidal shape. According to claim 1, The elastic portion is formed in a conical or pyramid shape, the golf club head further comprises a protrusion formed at a predetermined distance from the inclined surface of the cone or pyramid. According to claim 1, The resilient portion is a golf club head having a plurality of concentric circles of different diameters formed with the center of the back surface of the hitting surface. According to claim 1, The protrusion is a golf club head formed in any one of a hemispherical, conical, pyramidal, cylindrical, prismatic. A golf club head coupled to a grip by a shaft, the golf club head having a main body and a hitting surface for hitting a golf ball formed separately from the main body, A concave inlet portion for placing the batter surface; A coupling member formed on the tow of the main body; A coupling hole formed at a position corresponding to the coupling member of the batter surface to couple with the coupling member; An elastic part formed on a rear surface of the batter surface and having a central portion formed in a trench shape gradually lowering toward the batter surface; And Protruding portion formed in the center of the elastic portion; Golf club head having a. The method of claim 11, wherein The coupling member is a golf club head formed of a heavier material than the main body. The method of claim 11, wherein The elastic portion is a golf club head of a hemispherical trench shape. The method of claim 11, wherein The elastic part is formed in a hemispherical trench shape, the golf club head having a plurality of steps formed on the inner peripheral surface of the hemispherical trench. The method of claim 11, wherein The elastic part has a hemispherical trench shape, a golf club head having a plurality of steps formed on the inner circumferential surface of the hemispherical trench and protrusions formed at each end of the step. The method of claim 11, wherein The elastic portion is a golf club head having a stepped trench shape. The method of claim 11, wherein The elastic portion is a step portion gradually lowered to a constant depth toward the batter surface toward the center from the peripheral portion; And A protrusion formed at an inner end of the step portion; Golf club head having a. The method of claim 11, wherein The golf club head is formed in a conical or pyramidal shape. The method of claim 11, wherein The elastic portion is formed in a conical or pyramid shape, the golf club head further comprises a protrusion formed at a predetermined distance from the inclined surface of the cone or pyramid. The method of claim 11, wherein The elastic part is a golf club head having a plurality of concentric circles of different diameters formed concentrically with the center of the back surface of the hitting surface. The method of claim 11, wherein The protrusion is a golf club head formed in any one of a hemispherical, conical, pyramidal, cylindrical, prismatic.