TW202208037A - Golf club head capable of increasing the grinding efficiency and avoiding the situation of poor connection - Google Patents

Abstract

Disclosed is a golf club head including a club head body and a top cover made of carbon fiber reinforced thermoplastic composite (CFRTP). The club head body includes a main body part, an inner edge part connected with the main body part and surroundingly defining an opening, a bearing and connecting part connected with the inner edge part and downwards extended and an extension part connected with the bearing and connecting part and defining a fitting surface facing the opening, wherein the thickness of the extension part is gradually increased from thin to thick towards the bearing and connecting part. The top cover is fixed to the fitting surface and located in the opening, and the top cover is provided with a cover body part and a combination part connected with the cover body part, fixed to the fitting surface and ground to be gradually changed in thickness. By the design that the extension part is gradually changed in thickness and is formed with steps, the thickness, need to be ground, of the combination part is greatly reduced, so that the grinding efficiency is increased and the situation of poor connection is avoided.

Description

golf club head

The present invention relates to a golf equipment, especially a golf club head.

Referring to FIG. 1 and FIG. 2 , generally the golf club head body will form a gluing area that is joined to the top cover. The gluing area is usually divided into two structures, one is the stepped type as shown in FIG. 1 , and the other is as shown in FIG. 1 . The inclined surface and stepped design shown in FIG. 2 are formed by concavely folded at the outer edge of the ball head body 11 to form a stepped structure 111 , and generate a flat surface 112 for the top cover 12 to abut on. The outer surface can be flush and connected to the ball head body 11. Usually, the part of the top cover 12 corresponding to the gluing area needs to be partially thickened. In this way, when the top cover 12 is glued to the plane 112, the thickened outer surface will be thicker than that of the ball. The surface of the head body 11 is protruding, and at this time, the top cover 12 can be made flush with the ball head body 11 by grinding. The inclined surface design is to form an inclined surface 113 at the outer edge of the ball head body 11 for the top cover 12 to abut against. 12 is just flush with the outer surface of the ball head body 11 after being attached to the inclined surface 113 .

The above process is suitable for carbon fiber composite materials (Carbon Fiber Reinforced Polymer, referred to as CFRP) with a thickness that can be designed with gradual changes, but when using carbon fiber thermoplastic composite materials (Carbon Fiber Reinforced ThermoPlastic, referred to as CFRTP) with high strength and light weight as the top When the material of the cover 12 is used, since CFRTP has the characteristics of uniform thickness, the stepped design will cause the problem that the surface of the top cover 12 cannot be flush with the outer surface of the ball head body 11. When the inclined design is adopted, the uniform thickness of CFRTP The top cover 12 will protrude beyond the inclined surface 113 of the gluing area as shown by the imaginary line in FIG. 2 , so that the top cover 12 needs a lot of grinding to make the surface level and smooth. Grinding will also cause material waste and increase costs virtually.

Therefore, the purpose of the present invention is to provide a golf club head that enables the top cover of CFRTP material to be connected to the head body.

Therefore, the golf club head of the present invention includes a ball head body and a top cover disposed on the ball head body. The ball head body includes a main body portion defining an inner space, an inner edge portion connected to the main body portion and surrounding an opening that defines an opening connecting the inner space, and a portion connected to the inner edge portion and extending downward to be located in the interior A receiving portion in the space, and an extension portion connecting the receiving portion and defining a fitting surface facing the opening, the thickness of the extending portion gradually increases from thin to thick toward the receiving portion.

The top cover is fixed on the adhering surface and located in the opening, and is made of carbon fiber thermoplastic composite material. The top cover has a cover part, and a cover part connected to the cover part and fixed on the adhering surface and The thickness of the joint part is gradually reduced from thick to thin in the direction of the receiving part, and the outer surface of the joint part is flush with the outer surface of the main body part.

The effect of the present invention is: through the design of the thickness of the extension portion gradually changing and forming a step, the thickness required for grinding of the joint portion is greatly reduced, the grinding efficiency is improved, and the situation of poor connection is avoided.

Referring to FIGS. 3 and 4 , an embodiment of the golf club head of the present invention includes a head body 2 and a partially ground cap 3 fixed on the head body 2 . The ball head body 2 includes a main body 21 defining an inner space 211 , an inner edge 22 connecting the main body 21 and surrounding an opening 221 connecting the inner space 211 , and connecting the inner edge 22 The receiving portion 23 extending downward and located in the inner space 211 , and an extension portion 24 connecting the receiving portion 23 and defining a fitting surface 241 facing the opening 221 and located in the inner space 211 . The thickness of the extension portion 24 is gradually increased from thin to thick toward the direction of the receiving portion 23 , and the thickening range is within 0.35 mm. The receiving portion 23 and the extending portion 24 form a stepped structure with gradual thickness.

The top cover 3 is fixed on the adhering surface 241 by gluing or other means, and is located in the opening 221 and closes the opening 221 . The top cover 3 is made of carbon fiber thermoplastic composite material (Carbon Fiber Reinforced ThermoPlastic, CFRTP for short), the top cover 3 has a cover body 31 with a thickness of 0.55mm to 0.75mm, and a connection to the cover body 31 And it is fixed on the bonding surface 241 and is ground to the joint portion 32 whose thickness is gradually changed. The thickness of the joint portion 32 is gradually reduced from thick to thin toward the direction of the receiving portion 23 , and the preferred thickness is in the range of 0.4 mm to 0.2 mm. The grinding amount of the joint portion 32 is about 0.15 mm to 0.55 mm, so that the outer surface of the joint portion 32 is flush with the outer surface of the main body portion 21 .

To sum up, through the structural design of the present invention, the top cover 3 made of CFRTP and having a uniform thickness can be flush and connected with the surface of the ball head body 2 with a small amount of grinding, thereby improving grinding efficiency, so it can indeed achieve the purpose of the present invention.

However, the above are only examples of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the scope of the application for patent of the present invention and the contents of the patent specification are still within the scope of the present invention. within the scope of the invention patent.

2: Ball head body 21: Main body 211: Interior Space 22: inner edge 221: Opening 23: Undertaking Department 24: Extensions 241: Fitting surface 3: top cover 31: Cover body 32: Joint

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: 1 is an incomplete side sectional view illustrating a conventional golf club head of a stepped design; Figure 2 is an incomplete side sectional view illustrating a conventional golf club head of a bevel design; Figure 3 is a fragmentary side sectional view illustrating one embodiment of the golf club head of the present invention; and FIG. 4 is a partial enlarged view illustrating an enlarged aspect of the portion shown by the virtual circle in FIG. 3 .

2: Ball head body

21: Main body

211: Interior Space

22: inner edge

23: Undertaking Department

24: Extensions

241: Fitting surface

3: top cover

31: Cover body

32: Joint

Claims (2)

A golf club head comprising: A ball head body, comprising a main body portion defining an inner space, an inner edge portion connected to the main body portion and surrounding an opening defining an opening connecting the inner space, a connection of the inner edge portion and extending downward to be located in the a receiving portion in the inner space, and an extension portion connecting the receiving portion and defining a fitting surface facing the opening, the thickness of the extending portion gradually increases from thin to thick toward the receiving portion; and a top cover, fixed on the abutment surface and located in the opening, and made of carbon fiber thermoplastic composite material, the top cover has a cover body part, and a cover body part connected to the cover body part and fixed on the abutment surface The thickness of the joint part is gradually reduced from thick to thin in the direction of the receiving part, and the outer surface of the joint part is flush with the outer surface of the main body part. The golf club head according to claim 1, wherein the thickness of the extension portion of the head body is increased within 0.35mm, the thickness of the cover portion of the top cover is 0.55mm to 0.75mm, and the combination The thickness of the part is 0.4mm to 0.2mm.

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