Golf club head and method for manufacturing the same

Abstract

We offer highly versatile golf club heads with a flexible design. [Solution] The device includes a head body 21 defining at least one input chamber 211 having an opening 212 communicating with the outside, and at least one weight 23 fitted into the at least one input chamber 211 and having a maximum cross-sectional area greater than the cross-sectional area of ​​the opening 212 of the at least one input chamber 211 and being restricted to being located within the at least one input chamber 211, wherein the at least one weight 23 is a cured mixture of a plurality of metal particles and a binder.

Description

[Technical Field]

[0001] The present invention relates to a golf club head and a method of manufacturing the same, and in particular to a golf club head having a weight and a method of manufacturing the same. [Background Art]

[0002] In order to improve the efficiency and feel at impact when hitting a ball with a golf club, many golf clubs are provided with a weight in the club head for finely adjusting the center of gravity position of the club head. In common golf clubs, a block-shaped or annular weight is often fixed to the club head by welding or screwing.

[0003] However, with respect to the welding method, since the weight and the club head are often made of different metals, satisfactory welding bonding cannot be achieved unless high-cost brazing is used.

[0004] In addition, with respect to the screwing method, as disclosed in Patent Document 1 (Japanese National Publication of International Patent Application No. 2014-516647), it is necessary to provide a screwing hole and an assembly space in the club head.

[0005] Furthermore, for both welding and screwing, a pre-designed and manufactured weight can only be used for the corresponding club head, resulting in low versatility. That is, when a manufacturer develops different designs, in addition to having to consider the drawbacks of the above bonding methods, it is necessary to redesign the shape of the new weight, which requires the production of a new mold and may also increase the inventory of parts, leading to increased costs.

[0006] [Prior Art Literature] [Patent Literature]

[0007] [Patent Document 1] Japanese National Publication of International Patent Application No. 2014-516647 [Summary of the Invention] [Problems that the invention aims to solve]

[0008] The objective of this invention is to provide a golf club head with a flexible design and high versatility, as well as a method for manufacturing the golf club head. [Means for solving the problem]

[0009] The present invention comprises a head body defining at least one input chamber having an opening that communicates with the outside, The system includes at least one weight fitted into the at least one input chamber, having a maximum cross-sectional area greater than the cross-sectional area of ​​the opening of the at least one input chamber and being confined to a position within the at least one input chamber, The golf club head provides a golf club head in which the at least one weight is a cured mixture of multiple metal particles and a binder.

[0010] Furthermore, the present invention includes a preliminary step of forming at least one input chamber having an opening that communicates with the outside inside the head body, A feeding step of feeding multiple metal particles and a binder into the feeding chamber in any order or simultaneously, The present invention provides a method for manufacturing a golf club head, comprising a curing step of curing the plurality of metal particles and the binder in the at least one input chamber to form at least one weight whose maximum cross-sectional area is greater than the cross-sectional area of ​​the opening of the at least one input chamber. [Effects of the Invention]

[0011] Since the weight is fixed by fitting rather than welding or screwing, there is no need to use costly brazing, and there is no need to provide screw holes and space for assembly in the head body.

[0012] Furthermore, when designing a new shape and structure for the head body, weights can be manufactured using the same input materials (i.e., multiple metal particles and binders) simply by adjusting the shape and position of the input chamber, thus avoiding the costs of creating new molds and maintaining inventory. In addition, metals with different densities can be used as metal particles as needed, and the overall balance and center of gravity can be adjusted by adjusting the ratio of metal particles and binders. [Brief explanation of the drawing]

[0013] [Figure 1] This is a flowchart illustrating an embodiment of the manufacturing method for a golf club head according to the present invention. [Figure 2] This is a cross-sectional view showing the head body in the preliminary step. [Figure 3] This is a top view of Figure 2. [Figure 4] This is a cross-sectional view showing the input step. [Figure 5] This is a cross-sectional view showing the curing step. [Figure 6] This is a bottom view showing a manufactured golf club head. [Modes for carrying out the invention]

[0014] To more clearly explain the object, technical means, and advantages of the embodiments of the present invention, the technical means in the embodiments of the present invention will be described below with reference to the accompanying drawings of the embodiments of the present invention. The embodiments described are illustrative of some embodiments of the present invention, and the constituent elements of the embodiments of the present invention depicted and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of the present invention below is not intended to limit the scope of the claims of the present invention in any way, but merely to show a selected embodiment of the present invention.

[0015] As shown in Figures 1 to 3, an embodiment of the method for manufacturing a golf club head according to the present invention includes a preliminary step 11, a dipping step 12, and a curing step 13.

[0016] In preliminary step 11, an injection chamber 211 having an opening 212 communicating with the outside is formed in the head body 21 by casting, forging, additive manufacturing or precision machining. That is, the injection chamber 211 communicates with the outside through the opening 212.

[0017] The contour of the injection chamber 211 can be adapted to the outer shape and center of gravity arrangement of the head body 21 by adjusting parameters in real time in computer-aided design (so-called CAD) and automated manufacturing.

[0018] Furthermore, it is sufficient that at least one injection chamber 211 is formed, and there may be a plurality of injection chambers 211. The direction and depth of the opening 212 can be determined according to the structure of the head body 21 and the actual position of the injection chamber 211.

[0019] As shown in Figures 1 and 4, in injection step 12, a plurality of metal particles and a binder are mixed to obtain an injection material 22 having fluidity, which is injected into the injection chamber 211.

[0020] For the plurality of metal particles, metals with different densities can be used as required, and all of the plurality of metal particles may be the same type of metal, or may be a mixture of different metals.

[0021] The binder may be, but is not limited to, a resin.

[0022] The ratio of the plurality of metal particles to the binder can be adjusted according to actual needs.

[0023] During injection, the injection material 22 is injected into the injection chamber 211 through the opening 212, so that the injection chamber 211 is filled with the injection material 22.

[0024] Multiple metal particles and a binder are mixed and stirred to form the input material 22. After mixing and stirring, both are added together, i.e., simultaneously. Alternatively, they may be added before or after the other, i.e., in any order as needed. For example, the multiple metal particles may be added first, followed by the binder, or the binder may be added first, followed by the multiple metal particles.

[0025] If there are multiple input chambers 211, the same input material 22 can be introduced into each input chamber 211 sequentially, or different input materials 22 can be introduced into each chamber, which can be adjusted according to the required overall weight and center of gravity placement.

[0026] As shown in Figures 1, 5, and 6, in the curing step 13, the input chamber 211 is heated to cure the input material 22 inside the input chamber 211, forming the weight 23 fitted into the input chamber 211.

[0027] The maximum cross-sectional area of ​​the weight 23 is greater than the cross-sectional area of ​​the opening 212 of the input chamber 211, so the formed weight 23 is confined to the input chamber 211, and a golf club head 2 having the weight 23 is ultimately manufactured.

[0028] Since the weight 23 is not fixed to the golf club head 2 by welding or screwing, problems such as reduced welding quality, increased costs due to brazing, the need to secure space for assembly, and the installation of mounting parts are avoided.

[0029] Furthermore, when changing the contour of the input chamber 211 or the type and structure of the club head, the corresponding input chamber 211 can be defined in the preliminary step 11 simply by adjusting the design parameters of the input chamber 211 with the assistance of a computer. And, regardless of the shape of the input chamber 211, the weight 23 can be manufactured inside the input chamber 211 using the input material 22. This eliminates the problem of having to create a new mold after a new club head has been designed and the old weight becomes unusable, thus greatly preventing the occurrence of unnecessary costs.

[0030] Furthermore, by adjusting the ratio of the materials used and the input material 22 of multiple metal particles, the precise weight and center position of the weight 23 can be further adjusted. Such adjustment functions can be further refined by using multiple input chambers 211 and multiple weights 23, thus providing greater versatility and customizability.

[0031] According to the above, the golf club head of the present invention eliminates the need to use welding or screwing for weight installation, thus avoiding the problems associated with these two methods. At the same time, the input material 22 can be used in accordance with different head body 21 designs, preventing problems such as the need to manufacture new molds or increase inventory after the head body 21 design is changed, as the old weights become unusable. Therefore, the objectives of the present invention can be reliably achieved.

[0032] The above embodiments are illustrative in illustrating the principles and effects of the present invention and do not limit it. A person skilled in the art can make some modifications and alterations to the above embodiments, provided that they do not deviate from the spirit and scope of the invention. Therefore, all modifications and alterations made by a person skilled in the art, provided that they do not deviate from the spirit of the invention, should also be considered to fall within the scope of protection of the present invention. [Industrial applicability]

[0033] The golf club head of the present invention is suitable for use in the golf game. [Explanation of Symbols]

[0034] 11 Preliminary Steps 12 Input Step 13. Curing Step 2 Golf club heads 21 Head body 211 Input Chamber 212 Aperture 22 Input materials 23 weights

Claims

1. A head body comprising at least one input chamber having an opening that communicates with the outside, The system includes at least one weight fitted into the at least one input chamber, having a maximum cross-sectional area greater than the cross-sectional area of ​​the opening of the at least one input chamber and being confined to a position within the at least one input chamber, The golf club head wherein at least one of the weights is a cured mixture of multiple metal particles and a binder.

2. The golf club head according to claim 1, wherein the binder in the at least one weight is a resin.

3. A preliminary step involves forming at least one input chamber having an opening that communicates with the outside inside the head body, A feeding step of feeding multiple metal particles and a binder into the feeding chamber in any order or simultaneously, A method for manufacturing a golf club head, comprising: a curing step of curing the plurality of metal particles and the binder in the at least one input chamber to form at least one weight whose maximum cross-sectional area is greater than the cross-sectional area of ​​the opening of the at least one input chamber.

4. The method for manufacturing a golf club head according to claim 3, wherein, in the input step, the plurality of metal particles and the binder are mixed and stirred, and then both are put into the at least one input chamber.

5. The method for manufacturing a golf club head according to claim 3, wherein in the above-mentioned step, the binder is a resin.

6. The method for manufacturing a golf club head according to claim 3, wherein in the preliminary step, the at least one input chamber is formed by casting, forging, additive manufacturing or precision machining.

7. A method for manufacturing a golf club head according to claim 3, wherein in the curing step, the at least one input chamber is heated to cure the plurality of metal particles and the binder in the at least one input chamber to form the at least one weight.

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