Golf club head

Abstract

A golf club head includes a club body defining an opening, and a striking face fixed to the club body and closing the opening. The striking face includes a blade portion that covers the outside of the opening, and an undercut portion connected to the outer periphery of the blade portion and fixed to the club body. The undercut portion defines an annular groove between the club body and the blade portion. The recoil value can be adjusted by changing the size and position of the annular groove, and different recoil values ​​can be produced by combining different club bodies with different striking faces during manufacturing, achieving a high degree of customization.

Description

Technical Field

[0001] The invention relates to a golf club, in particular to a golf club head which can easily control the back-spin value through structural design. Prior Art

[0002] The kickback value is also called the CT value (Characteristic Time). The measurement method is to use a detection machine to hit the striking surface of the golf club head through an iron ball, and measure the elasticity of the golf club head by the contact time between the iron ball and the striking surface (in milliseconds). A higher kickback value can increase the initial velocity of the ball after hitting the ball, thereby increasing the flight distance of the ball. Therefore, it is one of the key points for consumers when purchasing clubs. At the same time, the kickback value of golf club heads is also standardized (generally 257 milliseconds) for restriction in golf competitions. Under the tug-of-war between consumer demand and regulatory restrictions, how to adjust and limit the kickback value has become an important issue for golf club manufacturers. At present, the common design is mostly to provide ribs between the striking surface and the ball head body, adjust the thickness of the body close to the striking surface, or achieve it through a special striking surface appearance design. However, the aforementioned design will have a lower adjustability due to the influence of structural limitations, and it is more difficult to finely adjust the kickback value by simply adjusting parameters during the manufacturing process. Summary of the invention

[0003] Therefore, an object of the present invention is to provide a golf club head capable of adjusting the back launch value more finely.

[0004] Therefore, the golf club head of the present invention comprises a ball head body and a striking panel fixed on the ball head body. The ball head body defines an internal space and an opening connected to the internal space and opened along a striking direction. The striking panel closes the opening and comprises a plate body portion shielding the outside of the opening along the striking direction, and an undercut portion connected to the outer periphery of the plate body portion and fixed on the ball head body. The undercut portion defines an annular groove along the striking direction and located between the ball head body and the plate body portion.

[0005] The effect of the present invention is that the return value can be adjusted by adjusting the size and position of the ring groove, and different return values ​​can be produced by matching different ball head bodies with different striking panels during manufacturing, thereby achieving a highly customized effect. Simple diagram description

[0006] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the accompanying drawings, wherein: Figure 1 is a side sectional view illustrating an embodiment of a golf club head of the present invention; Figure 2 is a side sectional view illustrating the state of one of the striking panels in Figure 1 after separation; Figure 3 is a side sectional view illustrating another design aspect of one of the ball head bodies in the embodiment; Figure 4 is a front view illustrating the front view of Figure 1; and FIG. 5 and FIG. 6 are both side cross-sectional views, illustrating other design aspects of the striking panel. Implementation

[0007] Referring to FIG. 1 and FIG. 2 , an embodiment of a golf club head of the present invention comprises a head body 1, a striking panel 2 disposed on the head body 1, and a plurality of elastic bodies 3 fixed on the striking panel 2. The head body 1 comprises a shell wall portion 11 surrounding an internal space 111, and a seat body portion 12 connected to the shell wall portion 11 and surrounding an opening 121. The opening 121 is opened along a striking direction A and communicates with the internal space 111. The seat body portion 12 is recessed inwardly to form a positioning groove 122 surrounding the opening 121 and located outside the internal space 111 along the striking direction A.

[0008] 1 , 2 , and 3 , it should be particularly noted that the ball head body 1 can be designed in different shapes, such as but not limited to those shown in FIGS. 2 and 3 .

[0009] Referring to FIG. 1 , FIG. 2 , and FIG. 4 , the striking panel 2 is fixed to the ball head body 1 by gluing or welding and closes the opening 121. The striking panel 2 includes a plate body 21 shielding the outside of the opening 121 along the striking direction A, and an undercut portion 22 connected to the outer periphery of the plate body 21 and accommodated in the positioning groove 122 and fixed on the seat body 12. The plate body 21 and the undercut portion 22 are integrally formed, and the material is metal (including amorphous alloy) or composite material (including carbon fiber reinforced polymer). When the material is metal, it can be manufactured by casting, metal injection molding, or 3D metal printing. The normal direction of the plate body 21 is substantially parallel to the striking direction A. The undercut portion 22 has an outer wall section 221 connected to the outer periphery of the plate body 21, a connecting wall section 222 connected to the outer wall section 221 in a bending manner relative to the outer wall section 221, and an annular wall section 223 connected to the connecting wall section 222 in a bending manner relative to the connecting wall section 222. The annular wall section 223 is substantially parallel to the outer wall section 221 and spaced apart from each other along the striking direction A. The outer wall section 221, the connecting wall section 222, and the annular wall section 223 cooperate to define an annular groove 224 along the striking direction A and located between the ball head body 1 and the plate body 21. The annular groove 224 surrounds the opening 121 when viewed along the striking direction A. The elastic bodies 3 are fixed on the undercut portion 22 and located in the annular groove 224.

[0010] Referring to FIG. 1 , FIG. 5 , and FIG. 6 , it should be particularly noted that the undercut portion 22 can be adjusted to match the shape of the ball head body 1 . For example, the upper side of the undercut portion 22 can be bent inwardly along the striking direction A as a whole, so that the striking panel 2 forms an upper L-shaped panel as shown in FIG. 1 . However, the undercut portion 22 can also be bent inwardly along the striking direction A as a whole, so that the striking panel 2 forms a lower L-shaped panel as shown in FIG. 5 . Alternatively, the undercut portion 22 can be bent inwardly along the striking direction A as a whole, so that the striking panel 2 forms a CUP-shaped panel as shown in FIG. 6 . The number of the elastic bodies 3 can also be singular, and they can be fixed to the undercut portion 22 by gluing, tight fitting, or designing a tenon. The shape, volume, and installation position of the elastic body 3 can be adjusted according to needs, and are not limited to the state shown in this case. It should be noted that when no elastomer 3 is provided in the annular groove 224, the striking panel 2 has the highest CT value, and accordingly, the required number of elastomers 3 can be further added according to demand (the number can also be 0 if necessary).

[0011] In summary, the elastic bodies 3 are arranged in the annular groove 224, which can provide support force when the striking panel 2 hits the ball, and adjust the concave deformation amount of the plate body 21, so as to control the rebound value when hitting the ball. By adjusting the size and position of the annular groove 224, the number, appearance, distribution, setting position and material of the elastic bodies 3, the rebound value (Characteristic Time, i.e., CT value) can be further finely adjusted. The adjustable degree is high and not complicated, thereby overcoming the problems of traditional golf club heads. During manufacturing, different rebound values ​​can be generated by matching different ball head bodies 1 with different striking panels 2, thereby achieving a highly customized effect, so the purpose of the present invention can be achieved.

[0012] However, what is described above is only an embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope covered by the patent of the present invention.

[0013] 1: Ball head body 11: Shell wall 111:Interior Space 12: Seat body part 121: Opening 122: Positioning slot 2: Strike Panel 21: Board body 22: Undercut 221: Outer wall section 222: Connecting wall section 223: Ring wall segment 224: Ring groove 3: Elastomer A: Direction of attack

Claims

1. A golf club head, comprising: a ball head body, defining an internal space, and an opening connected to the internal space and opened along a striking direction; and a striking panel, fixed to the ball head body and closing the opening, the striking panel comprising a plate portion shielding the outside of the opening along the striking direction, and an undercut portion connected to the outer periphery of the plate portion and fixed to the ball head body, the undercut portion surrounding and defining an annular groove along the striking direction and located between the ball head body and the plate portion.

2. The golf club head of claim 1, wherein: The ball head body comprises a shell wall portion surrounding the inner space, and a seat body portion connected to the shell wall portion and surrounding the opening.

3. The golf club head of claim 2, wherein: The seat body of the ball head body is used for setting the bottom cut portion of the striking panel. The seat body is recessed inward to form a positioning groove surrounding the opening and accommodating the bottom cut portion. The positioning groove is located outside the internal space.

4. The golf club head of claim 1, wherein: The bottom cut portion of the striking panel has an outer wall section connected to the outer periphery of the plate body, a connecting wall section connected to the outer wall section by bending relative to the outer wall section, and an annular wall section connected to the connecting wall section by bending relative to the connecting wall section. The outer wall section, the connecting wall section, and the annular wall section cooperate to define the annular groove.

5. The golf club head according to claim 1 or 4, further comprising at least one elastic body fixed to the striking face plate and located in the annular groove.

6. The golf club head of claim 1, wherein: The plate body and the bottom cut portion of the striking panel are integrally formed, and the material is metal or composite material.

7. The golf club head of claim 1, wherein: The striking panel is fixed on the ball head body by gluing or welding.

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