TWI887181B - Golf Club Head - Google Patents

Abstract

A golf club head includes a club body defining an opening, and a striking panel fixed to the club body and closing the opening. The striking panel includes a plate portion covering the outer side of the opening, and an undercut portion connected to the outer periphery of the plate portion and fixed to the club body. The undercut portion defines an annular groove between the club body and the plate portion. The return value can be adjusted by adjusting the size and position of the annular groove, and different return values can be generated by matching different club bodies with different striking panels during manufacturing, thereby achieving a highly customized effect.

Description

Golf Club Head

The present invention relates to a golf club, and more particularly to a golf club head whose rebound value is easily controlled through structural design.

The kickback value is also called the CT value (Characteristic Time). It is measured by using a detection machine to measure the elasticity of the golf club head by the contact time between the iron ball and the striking surface through an iron ball. 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 choosing a club. At the same time, the kickback value of golf club heads is also regulated (usually 257 milliseconds) in golf competitions for restriction. Under the tension between consumer demand and regulatory restrictions, how to adjust and limit the kickback value has become an important issue for golf club manufacturers. The most common designs at present are to set ribs between the striking surface and the body of the ball head, adjust the thickness of the body close to the striking surface, or achieve this through special striking surface appearance design. However, the aforementioned designs have low adjustability due to structural limitations, and it is difficult to finely adjust the rebound value by simply adjusting parameters during the manufacturing process.

Therefore, an object of the present invention is to provide a golf club head that can adjust the kickback value more finely.

Therefore, the golf club head of the present invention comprises a club head body and a striking panel fixed to the club head body. The club 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 portion shielding the outer side of the opening along the striking direction, and an undercut portion connected to the outer periphery of the plate portion and fixed to the club head body. The undercut portion circumferentially defines an annular groove along the striking direction and located between the club head body and the plate portion.

The effect of the present invention is that the rebound value can be adjusted by adjusting the size and position of the annular groove, and different rebound values can be produced by matching different ball head bodies with different striking panels during manufacturing, thereby achieving a highly customized effect.

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

Referring to FIG. 1 , FIG. 2 , and FIG. 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 FIG. 2 and FIG. 3 .

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 portion 21 that blocks the outer side of the opening 121 along the striking direction A, and an undercut portion 22 that is connected to the outer periphery of the plate portion 21, is accommodated in the positioning groove 122, and is fixed to the seat portion 12. The plate portion 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 portion 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 portion 21, an attachment wall section 222 connected to the outer wall section 221 by bending relative to the outer wall section 221, and an annular wall section 223 connected to the attachment wall section 222 by bending relative to the attachment wall section 222. The annular wall sections 223 are 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 attachment 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 portion 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 are located in the annular groove 224 .

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 lower side of 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 may be singular, and they may be fixed to the undercut portion 22 by gluing, tight fitting or designing a tenon. The shape, volume and location of the elastic body 3 may be adjusted as required and are not limited to the embodiment shown in this example. It should be noted that when no elastic body 3 is provided in the annular groove 224, the striking panel 2 has the highest CT value, and accordingly, the required number of elastic bodies 3 may be further added as required (the number may also be 0 if necessary).

In summary, the elastic bodies 3 are arranged in the annular groove 224, which can provide support when the striking panel 2 strikes the ball, and adjust the concave deformation amount of the plate body 21, so as to control the rebound value when striking the ball. By adjusting the size and position of the annular groove 224, the number, shape, 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 ball head bodies 1 can be matched with different striking panels 2 to produce different rebound values, thereby achieving a highly customized effect, so the purpose of the present invention can be achieved.

However, the above is only an example of the implementation of the present invention, and it should not be used to limit the scope of the 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 of the patent of the present invention.

1: Ball head body 11: Shell wall 111: Internal space 12: Seat body 121: Opening 122: Positioning groove 2: Striking panel 21: Plate body 22: Undercut 221: Outer wall section 222: Anchor wall section 223: Annular wall section 224: Annular groove 3: Elastic body A: Striking direction

Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: FIG. 1 is a side sectional view illustrating an embodiment of the golf club head of the present invention; FIG. 2 is a side sectional view illustrating a state after a striking panel in FIG. 1 is separated; FIG. 3 is a side sectional view illustrating another design state of a club head body in the embodiment; FIG. 4 is a front view illustrating the front view of FIG. 1; and FIG. 5 and FIG. 6 are both side sectional views illustrating other design states of the striking panel.

1: Ball head body

11: Shell wall part

111:Inner space

12: Seat body

121: Open mouth

122: Positioning slot

2: Hit the panel

21: Board body

22: Undercut

221: Outer wall section

222: Connecting wall section

223: Ring wall segment

224: Annular groove

3: Elastic body

A: Direction of attack

Claims (7)

A golf club head comprises: a club head body defining an inner space, and an opening connected to the inner space and opened along a striking direction; and a striking panel fixed to the club head body and closing the opening, the striking panel comprising a plate portion shielding the outer side of the opening along the striking direction, and an undercut portion connected to the outer periphery of the plate portion and fixed to the club head body, the undercut portion surrounding and defining an annular groove along the striking direction and located between the club head body and the plate portion. A golf club head as described in claim 1, wherein the club head body includes a shell wall portion surrounding the internal space, and a seat portion connected to the shell wall portion and surrounding the opening. A golf club head as described in claim 2, wherein the seat portion of the club head body is provided for the undercut portion of the striking panel, the seat portion is recessed inward to form a positioning groove surrounding the opening and accommodating the undercut portion, and the positioning groove is located on the outer side of the internal space. A golf club head as described in claim 1, wherein the undercut portion of the striking panel has an outer wall section connected to the outer periphery of the plate body, an anchoring wall section connected to the outer wall section by bending relative to the outer wall section, and an annular wall section connected to the anchoring wall section by bending relative to the anchoring wall section, the outer wall section, the anchoring wall section, and the annular wall section cooperate to define the annular groove. The golf club head as described in claim 1 or 4 further includes at least one elastic body fixed to the striking face plate and located in the annular groove. A golf club head as described in claim 1, wherein the body portion and the undercut portion of the striking panel are integrally formed and are made of metal or composite material. A golf club head as described in claim 1, wherein the striking panel is fixed to the club head body by gluing or welding.

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