TWI538715B - The club head of the golf club head - Google Patents

Description

Golf club head hitting panel

The present invention relates to a golf equipment, and more particularly to a striking panel of a golf club head.

In recent years, more and more people have invested in golf. In various golf clubs, the impact panel of the club head plays a very important role. At present, most of the new club heads are made of titanium or tungsten steel. Because these materials are very light and hard, they can greatly increase the spring-like effect when hitting the ball, allowing the golf ball to fly farther.

Even with these improvements in materials, everyone hopes that the ball they use will show better ball control when hitting the ball, which will allow their strength to be fully utilized in the competition.

In order to improve the ball control, the related art has developed a golf club head 1 as shown in Fig. 1, which has a striking panel 11 having a plurality of grooves 111 recessed on its surface.

The use of the grooves 111 increases the friction between the striking panel 11 and the golf ball, thereby increasing the time the golf ball stays on the striking panel 11 to cause the hit golf ball to spin back. In turn, the rolling distance of the golf ball after landing is reduced to improve the ball control and the hitting distance. Therefore, in recent years, more and more operators have used relevant structural designs to improve ball control and hitting distance.

Accordingly, it is an object of the present invention to provide a striking panel for a golf club head that improves ball control.

Therefore, the striking panel of the golf club head of the present invention comprises a ball striking face, a plurality of recesses recessed at equal intervals on the ball striking face, and a plurality of projections.

Each of the recesses includes two rounded corners spaced apart from the ball striking face, and two tangent points respectively formed on the rounded corner, and a tangent line passing through the tangent point is a 30° angle with the ball striking face The angle of the.

The protrusion is protruded from the ball striking surface between each two adjacent recesses, and at least N spaced apart protrusions protrude from the ball striking surface between each two adjacent recesses.

The straight line distance between the tangent points on the adjoining corners defining the two-phase spaced depressions is S, and 1.905 mm ≦S ≦ 3 mm, the height of the bulging portion relative to the ball striking face is H, and 0.004 mm ≦ H≦0.044mm, the width of the protruding portion on the ball striking surface is D ₁ , D ₂ ... D _N , respectively, and the maximum width of the protruding portion on the ball striking surface is D _max , and every two The spacing between adjacent projections is V ₁ , V ₂ ... V _N-1 , and the minimum spacing between each two adjacent projections is V _min , where D _max ≦V _min and every two adjacent depressions The center line average roughness of the ball striking face is Ra, and the tangent point on the rounded corner of one of the two adjacent recessed portions is closest to the hitting surface between the recessed portions The distance of the portion is T1, and the distance from the tangent point on the fillet of the other recessed portion of the two adjacent recessed portions to the closest projection on the hitting surface between the recessed portions is T2, wherein: ,among them, And A≦0.004572mm×S.

The effect of the present invention is to use the convex portion to match the calculated average area of the center line average roughness of the ball striking face between each two adjacent recessed portions and the average roughness of the center line (ie, A), and the interval between the two phases. The limitation of the linear distance between the tangent points on the adjacent round corners of the depressed portion can further increase the reverse rotation speed of the golf ball that is hit, and further improve the ball control and the hitting distance.

2‧‧‧Battery panels

21‧‧‧Ball surface

22‧‧‧Depression

221‧‧‧ fillet

222‧‧‧cut points

23‧‧‧ protruding parts

L‧‧‧ tangent

Θ‧‧‧ angle

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a side view illustrating a conventional golf club head; FIG. 2 is a top view illustrating the golf ball of the present invention The first embodiment of the striking face of the head; FIG. 3 is a partial cross-sectional view illustrating the positional relationship between the ball striking face, the recessed portion and the protruding portion in the embodiment; FIG. 4 is a partially enlarged cross-sectional view showing the present embodiment. FIG. 5 is another enlarged cross-sectional view showing the structural features between the ball striking face, the recessed portion and the protruding portion in the embodiment; FIG. 6 is a partial cross-sectional view illustrating the present invention Golf club head blow A second embodiment of the panel; FIG. 7 is a partial cross-sectional view showing a third embodiment of the striking panel of the golf club head of the present invention; and FIG. 8 is a partial cross-sectional view showing the fourth of the striking panel of the golf club head of the present invention. Example.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 2 and 3, a first embodiment of the striking panel 2 of the golf club head of the present invention comprises a ball striking face 21, a plurality of recessed portions 22 recessed in the ball striking face 21 at equal intervals, and a plurality of protrusions each of the two A projection 23 on the ball striking face 21 between adjacent recessed portions 22.

Referring to FIGS. 3 and 4, each of the recessed portions 22 includes two rounded corners 221 spaced apart from the ball striking surface 21, and two tangent points 222 respectively formed on the rounded corners 221, through which the tangent points 222 are formed. The tangent L is an angle θ of 30° with the ball striking face 21. On the ball striking surface 21 between each two adjacent recessed portions 22, four projecting portions 23 are formed which are spaced apart and have a rectangular cross section. In practical applications, the ball striking surface 21 between each two adjacent recessed portions 22 may also protrude by three or more protrusions 23, which is not limited by the disclosure of the embodiment.

Referring to Figures 4 and 5, the tangent point 222 on the rounded corner 221 on the left side of the recess 22 on the right side in Fig. 5 is the distance T1 from the rightmost projection 23 in Fig. 5, and the left recess 22 in the bitmap 5. The tangent point 222 on the right side of the rounded corner 221 is the distance T2 from the leftmost raised portion 23 in FIG. Yu Ben In the embodiment, T1=T2=0.4235mm, of course, T1≠T2 can also be used in practical applications, and the same effect can still be achieved, which is not limited by the disclosure of the embodiment.

The straight line distance between the tangent points 222 on the rounded corners 221 adjacent to the two adjacent recessed portions 22 is defined as S, and 1.905 mm ≦ S ≦ 3 mm. The line connecting the tangent points 222 in this embodiment is located on the hitting surface. Below the 21, and the straight line distance S is 2.522 mm. The height of the projection 23 with respect to the ball striking face 21 is defined as H, and 0.004 mm ≦ H ≦ 0.044 mm, and H is 0.024 mm in this embodiment.

Further, the width of the protruding portion 23 on the ball striking surface 21 is defined as D ₁ , D ₂ D ₃ , D ₄ , and the maximum width of the protruding portion 23 on the ball striking surface 21 is D _max . The spacing between each two adjacent projections 23 is V ₁ , V ₂ , V ₃ , and the minimum spacing between each two adjacent projections 23 is V _min , where D _max ≦V _min . In the present embodiment, D ₁ = D ₂ = D ₃ = D ₄ = D _max = 0.067 mm, V ₁ = V ₂ = V ₃ = V _min = 0.469 mm, but in practical applications, D ₁ , D ₂ , D ₃ , D ₄ and V ₁ , V ₂ , V ₃ may not be equal, as long as D ₁ + D ₂ + D ₃ + D ₄ + V ₁ + V ₂ + V ₃ + T 1 + T 2 = S . In the present embodiment, ( D ₁ + D ₂ + D ₃ + D ₄ ) × ( H - h ) = ( V ₁ + V ₂ + V ₃ + T 1 + T 2) × h = 0.005749 mm ² , wherein

Further, the average cross-sectional area of the projections 23 on the ball striking face 21 between each two adjacent recessed portions 22 is a, and the center line average roughness of the ball striking face 21 between each two adjacent recessed portions 22 For Ra, in this embodiment: And A ≦ 0.004572 mm × S (ie A ≦ 0.011530584 mm ² ).

In order to verify the efficacy of the present invention, the inventors compared the present embodiment and the comparative example in which the overall structure is substantially similar to that of the present embodiment. The difference between the comparative example and the present embodiment is that the projection 23 of the present embodiment is used. , changed to a groove with the same restriction conditions.

The results are shown in the following table. As can be seen from the table below, under the same constraints, the present embodiment can produce a higher reverse rotation speed than the comparative example to further improve the ball control and the hitting distance.

Referring to Figure 6, a second embodiment of the striking panel 2 of the golf club head of the present invention is substantially similar to the first embodiment, except that the cross-section of the projection 23 is generally triangular. Since the present embodiment is substantially similar to the first embodiment, in addition to the same effects as the first embodiment, another aspect is also available for selection.

Referring to Fig. 7, a third embodiment of the striking panel 2 of the golf club head of the present invention is substantially similar to the first embodiment, except that the projection 23 has a substantially trapezoidal cross section. Since the present embodiment is substantially similar to the first embodiment, in addition to the same effects as the first embodiment, another aspect is also available for selection.

Referring to Figure 8, a fourth embodiment of the striking panel 2 of the golf club head of the present invention is substantially similar to the first embodiment, with different places being The cross section of the protruding portion 23 is substantially semicircular. Since the present embodiment is substantially similar to the first embodiment, in addition to the same effects as the first embodiment, another aspect is also available for selection.

It should be particularly noted that since the area of the protruding portion 23 is extremely small, the calculation method of the average cross-sectional area of the protruding portion 23 and the center line average roughness, etc. is the same as that of the first embodiment. I will not repeat them here.

In summary, the striking panel 2 of the golf club head of the present invention utilizes the projection 23 protruding from the ball striking surface 21 between the adjacent recessed portions 22 to match the centerline average roughness and the centerline. The calculation of the average roughness (ie, A), the linear distance between the tangent points 222 on the rounded corners 221 adjacent to the two-phased recess 22, can further increase the reverse rotation speed of the golf ball being knocked out, further The ball control and the hitting distance are improved, so that the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

21‧‧‧Ball surface

22‧‧‧Depression

221‧‧‧ fillet

222‧‧‧cut points

23‧‧‧ protruding parts

L‧‧‧ tangent

Θ‧‧‧ angle

Claims (4)

A striking panel of a golf club head, comprising: a ball striking face; a plurality of recessed portions, equidistantly recessed on the ball striking face, each recessed portion comprising two rounded corners spaced apart from the ball striking face And two tangent points respectively formed on the rounded corner, the tangent line passing through the tangent point is an angle of 30° with the ball striking face; and a plurality of protruding portions protruding between each two adjacent recessed portions On the ball striking face, at least N spaced apart protrusions are protruded from the ball striking face between each two adjacent recessed portions, and 3≦N; defining two adjacent recessed portions on the rounded corners The straight line distance between the tangent points is S, and 1.905 mm ≦S ≦ 3 mm, the height of the convex portion with respect to the ball striking surface is H, and 0.004 mm ≦ H ≦ 0.044 mm, the bulging portion is at the hitting ball The widths on the faces are respectively D ₁ , D ₂ ... D _N , the maximum width of the protrusions on the ball striking face is D _max , and the spacing between each two adjacent protrusions is V ₁ , V ₂ ...V _N-1 , the minimum width between each two adjacent projections is V _min , where D _max ≦V _min , and the average roughness of the center line of the ball striking face between each two adjacent recesses is Ra, and the tangent point on the rounded corner of one of the concave portions of the two adjacent depressed portions, the distance from the closest protruding portion on the hitting surface between the depressed portions is T1, and two adjacent depressions The distance from the tangent point on the fillet of the other recessed portion to the closest projection on the hitting surface between the recesses is T2, wherein: among them, And A≦0.004572mm×S. The striking panel of the golf club head according to claim 1, wherein T1=T2. The striking panel of the golf club head according to claim 1, wherein T1≠T2. The striking panel of the golf club head according to claim 1, wherein the average cross-sectional area of the protrusion on the ball striking face between each two adjacent recesses is a, wherein .