Golf Club Head

Abstract

A golf club head is provided. [Solution] A golf club head 10 comprises a head body and a face member 30. The head body has a striking surface 21. The striking surface has a first friction-increasing structure 23 on its outwardly facing surface. The face member is attached to the striking surface so as to cover the first friction-increasing structure, and has a second friction-increasing structure on its surface facing the striking surface. The second friction-increasing structure contacts the first friction-increasing structure. The above-mentioned structural features can increase the adhesive strength between the face member and the striking surface, while at the same time effectively improving the usability of the golf club head.

Description

[Technical field]

[0001] The present invention relates to golf clubs, and more particularly to golf club heads. [Background technology]

[0002] In known golf club heads, the head body has a striking surface. The face member is attached to the striking surface with an adhesive. The striking surface is a flat or arcuate surface that has relatively little friction. However, the adhesive strength between the face member and the striking surface decreases over time after they are bonded together, and it is inevitable that the face member will easily peel off from the striking surface.

[0003] In order to avoid such a situation, if a golf club head having a strong adhesive strength between the face member and the striking surface is provided, the usefulness of the golf club head can be increased. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE PRESENT DISCLOSURE In view of the above problems, the present invention has as its main object to provide a golf club head which effectively improves usability by increasing the adhesive strength between the face member and the striking surface. [Means for solving the problem]

[0005] In order to achieve the above object, a golf club head includes a head body and a face member. The head body has a striking surface. The striking surface has a first friction-increasing structure on a surface facing outward. The face member is attached to the striking surface so as to cover the first friction-increasing structure, and has a second friction-increasing structure on a surface facing the striking surface. The second friction-increasing structure contacts the first friction-increasing structure.

[0006] In detail, the golf club head according to the present invention increases the adhesive strength between the face member and the striking surface by the first friction-increasing structure and the second friction-increasing structure, thereby effectively improving the usability of the golf club head.

[0007] In a more preferred embodiment, the striking surface has a through hole.

[0008] In a more preferred embodiment, the first friction-increasing structure comprises a plurality of concave portions, and the second friction-increasing structure comprises a plurality of convex portions, the plurality of concave portions corresponding to the plurality of convex portions.

[0009] In a more preferred embodiment, the first friction-increasing structure has a plurality of convex portions, and the second friction-increasing structure has a plurality of concave portions, the plurality of convex portions corresponding to the plurality of concave portions.

[0010] In a relatively preferred case, the plurality of concave portions and the plurality of convex portions are arranged so as to be dispersed.

[0011] In a more preferred embodiment, the first friction-increasing structure has a plurality of first concave portions and a plurality of first convex portions. The second friction-increasing structure has a plurality of second convex portions and a plurality of second concave portions. The plurality of second convex portions correspond to the plurality of first concave portions. The plurality of second concave portions correspond to the plurality of first convex portions.

[0012] In a relatively preferred case, the plurality of first concave portions, the plurality of first convex portions, the plurality of second convex portions and the plurality of second concave portions are arranged so as to be dispersed.

[0013] In a more preferred embodiment, the striking surface has a groove, the first friction-increasing structure is formed within the groove, and the face member is fitted into the groove such that the peripheral edge of the face member abuts against the inner wall surface of the groove.

[0014] In more preferred cases, the materials for the head body are steel alloys and titanium alloys.

[0015] More preferably, the material of the face member is a low density metal.

[0016] In a more preferred embodiment, the head body further includes a crown, the thickness of the crown being 0.4 to 1.5 mm, and the thickness of the face member being 1 to 3 mm.

[0017] The detailed structure, features, assembly and usage of the golf club head according to the present invention will be made clear through the detailed description of the following embodiment. In addition, those with common sense in the field of the present invention should understand that the detailed description and the embodiment presented by the present invention are merely examples for explaining the present invention and cannot limit the scope of the claims of the present invention. [Brief description of the drawings]

[0018] [Figure 1] 1 is a perspective view of a golf club head according to a first embodiment of the present invention; [Diagram 2] 1 is an exploded perspective view of a golf club head according to a first embodiment of the present invention; [Diagram 3] FIG. 2 is an exploded perspective view of the golf club head according to the first embodiment of the present invention, viewed from another angle. [Figure 4] 4 is a cross-sectional view taken along line 4-4 in FIG. [Diagram 5] FIG. 4 is a side plan view of a golf club head according to a second embodiment of the present invention. [Figure 6] FIG. 11 is another side plan view of a golf club head according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A golf club head according to the present invention will now be described with reference to the accompanying drawings.

[0020] (First embodiment) As shown in FIG. 1, a golf club head 10 according to a first embodiment of the present invention includes a head body 20 and a face member 30. The material of the head body 20 is a steel alloy and a titanium alloy. The material of the face member 30 is a low-density metal, i.e., a metal with a density of 3 or less, but is not limited thereto. The head body 20 has a crown 22. The thickness of the crown 22 is 0.4 to 1.5 mm. The thickness of the face member 30 is 1 to 3 mm. The properties of the above-mentioned materials not only allow the weight to be properly arranged, but also improve the hitting feel compared to that of a general golf club head.

[0021] The head body 20 has a striking surface 21. The striking surface 21 has a first friction-increasing structure 23 on its outwardly facing surface.

[0022] The face member 30 is attached to the striking surface 21 so as to cover the first frictional force increasing structure 23, and has a second frictional force increasing structure 33 on the surface facing the striking surface 21. The second frictional force increasing structure 33 contacts the first frictional force increasing structure 23. In this embodiment, the face member 30 is attached to the striking surface 21 by an adhesive (not shown in the figure) that is commonly used in conventional technology. In detail, if the face member 30 is attached to the striking surface 21 to generate friction between the first frictional force increasing structure 23 and the second frictional force increasing structure 33, the adhesive strength between the face member 30 and the striking surface 21 is effectively increased, and at the same time, the contact area between the face member 30 and the striking surface 21 is increased, thereby improving the usability of the golf club head 10. In actual manufacturing, the method of attaching the face member 30 to the striking surface 21 may be a known means such as fitting or engagement depending on the shape of the first frictional force increasing structure 23 and the second frictional force increasing structure 33.

[0023] In this embodiment, the first friction-enhancing structure 23 is composed of a plurality of circular concave portions 25. The second friction-enhancing structure 33 is composed of a plurality of circular convex portions 35. The plurality of concave portions 25 correspond to the plurality of convex portions 35. The plurality of concave portions 25 and the plurality of convex portions 35 are arranged to be dispersed. When hitting a ball with the golf club head according to the present invention, the face member 30 collides with the ball, and at the same time, a gear effect is generated between the plurality of concave portions 25, the plurality of convex portions 35 and the ball (i.e., the plurality of convex portions 35 provide frictional force to the ball), thereby increasing the initial velocity and flight distance of the ball.

[0024] In actual manufacturing, the plurality of concave portions 25 and the plurality of convex portions 35 may be arranged in a geometric or irregular shape according to actual needs, and the plurality of concave portions 25 and the plurality of convex portions 35 are not limited to the above embodiment, since structural features expressing corresponding concave and convex shapes are included in the scope and embodiments of the present invention.

[0025] In actual manufacturing, the following manufacturing methods may be adopted. One is a method in which a plurality of convex portions 35 are arranged as the first frictional force-increasing structure 23, and a plurality of concave portions 25 are arranged as the second frictional force-increasing structure 33. The plurality of convex portions 35 correspond to the plurality of concave portions 25. One is a method in which a plurality of concave portions 25 and a plurality of convex portions 35 are arranged as the first frictional force-increasing structure 23, and a plurality of convex portions 35 and a plurality of concave portions 25 are arranged as the second frictional force-increasing structure 33. The plurality of concave portions 25 and the plurality of convex portions 35 of the hitting surface 21 correspond to the plurality of convex portions 35 and the plurality of concave portions 25 of the face member 30. The above-mentioned embodiment can increase the initial velocity and flight distance of the ball.

[0026] In this embodiment, the striking surface 21 has a concave groove 27. The first friction-enhancing structure 23 is located in the concave groove 27. The face member 30 is fitted into the concave groove 27, with its peripheral edge abutting the inner wall surface of the concave groove 27. The above-mentioned structural features effectively increase the adhesive strength between the face member 30 and the striking surface 21, and at the same time, increase the contact area between the face member 30 and the striking surface 21, thereby improving the usability of the golf club head 10. In addition, if the adhesive strength between the face member 30 and the striking surface 21 is sufficient, there is no need to arrange the concave groove 27 on the striking surface 21, and it is sufficient to attach the surface of the face member 30 to the striking surface 21. In other words, the technique of arranging the concave groove 27 on the striking surface 21 is not a requirement for achieving the object of the present invention.

[0027] To summarize the above, the golf club head 10 of the present invention has structural features, namely, the multiple concave portions 25 and the multiple convex portions 35, which effectively increase the adhesive strength between the face member 30 and the striking surface 21, and at the same time increase the contact area between the face member 30 and the striking surface 21, thereby improving the usability of the golf club head 10.

[0028] Furthermore, when hitting a ball with the golf club head 10 according to the present invention, a gear effect occurs between the plurality of concave portions 25, the plurality of convex portions 35, and the ball, thereby increasing the initial velocity and flight distance of the ball.

[0029] Second embodiment As shown in FIG. 5 and FIG. 6, the differences between the second embodiment and the first embodiment of the present invention are as follows:

[0030] As shown in Fig. 5 and Fig. 6, in the second embodiment, the striking surface 21' has a through hole 29'. The through hole 29' has a geometric shape such as a circle (see Fig. 5) or a diamond (see Fig. 6) or an irregular shape (not shown in the figures). The number of through holes 29' is not limited to one. Weight reduction can be achieved by increasing the number of through holes 29' according to actual needs. In other words, if the above-mentioned needs are not necessary, there is no need to arrange the through holes 29'. That is, the through holes are not a requirement for achieving the object of the present invention.

[0031] Other structures and effects achieved by the second embodiment are the same as those of the first embodiment, so detailed description will be omitted. [Explanation of symbols]

[0032] 10:Golf club head 20: Head body 21: Striking surface 22: Crown 23: First friction increasing structure 25: Concave part 27: Concave groove 30: Face member 32: Second friction increasing structure 35: Convex part 21': Striking surface 29':Through hole

Claims

1. The golf club has a head body and a face member, The head body has a striking surface, the striking surface having a first friction increasing structure on an outwardly facing surface; The face member is attached to the striking surface so as to cover the first frictional force increasing structure, and has a second frictional force increasing structure on a surface facing the striking surface, the second frictional force increasing structure being in contact with the first frictional force increasing structure.

2. 2. The golf club head of claim 1, wherein the striking face has an aperture therethrough.

3. the first friction-increasing structure comprises a plurality of recesses; the second friction-increasing structure is made of a plurality of convex portions; 2. The golf club head according to claim 1, wherein the plurality of concave portions correspond to the plurality of convex portions.

4. The first friction-increasing structure has a plurality of convex portions, the second friction-increasing structure has a plurality of recesses; 2. The golf club head according to claim 1, wherein a plurality of said convex portions correspond to a plurality of said concave portions.

5. 5. The golf club head according to claim 3, wherein the plurality of concave portions and the plurality of convex portions are disposed in a dispersed manner.

6. the first friction-increasing structure has a plurality of concave portions and a plurality of convex portions; the second friction-increasing structure has a plurality of convex portions and a plurality of concave portions; 2. The golf club head according to claim 1, wherein the plurality of concave portions of the striking surface correspond to the plurality of convex portions of the face member, and the plurality of convex portions of the striking surface correspond to the plurality of concave portions of the face member.

7. 2. The golf club head of claim 1, wherein the striking surface has a recessed groove, the first friction-increasing structure is formed within the recessed groove, and the face member is fitted into the recessed groove such that a peripheral edge of the face member abuts an inner wall surface of the recessed groove.

8. 2. The golf club head according to claim 1, wherein the material of the head body is a steel alloy and a titanium alloy.

9. 2. The golf club head of claim 1, wherein the material of the face member is a low density metal.

10. The head body further has a crown, the thickness of the crown being 0.4 to 1.5 mm; 2. The golf club head according to claim 1, wherein the face member has a thickness of 1 to 3 mm.

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