KR100504129B1 - A titanium casting head for golf club and therefor method - Google Patents

Abstract

The present invention is a face and sole of the wood golf club head formed of a metal such as titanium (sole) and the two elastic support and the neck and the lower end is placed in parallel in the swing direction side between the rear and the top surface of the face The metal head cup is formed by integrating a hosel formed in a state extending through the elastic support on one side and extending into the interior between the two elastic supports, and vacuum molding with a lightweight, high-strength metal material such as titanium. The head cup body is put into the injection mold, and the polymer head resin body such as ABS, PP, FRP, acryl, or the like is filled into the metal head cup body, and the copolymer and ultra-high elastic material such as carbon fiber and porous ceramic are mixed. It is filled by insert injection method or blow molding method and molded integrally, but the hosel and lead are connected to the inside and both sides between the elastic support on both sides. Metallic wood golf club that can be provided at high cost by reducing the production cost by forming a spherical hollow part to prevent the head from twisting, improving the distance of hitting, and minimizing the hook and slice. It relates to a method for producing the same.

Description

Metal titanium golf club head and its manufacturing method {A titanium casting head for golf club and therefor method}

The present invention relates to a metal wood golf club head and a method for manufacturing the same, which are molded by vacuum casting from a metal such as titanium and have ultra-high elastic filler and spherical hollow parts such as polymer synthetic resin or carbon fiber and porous ceramic. Two elastic supports, a neck and a lower end of the golf golf club head, which are formed of metal such as silver titanium, are placed in parallel in the swing direction between the face and sole of the head and the rear face of the face and the top of the sole. The metal head cup body is formed by integrating the hosel formed through the elastic support and extending into the space between the two elastic supports, and forming the metal head cup body by vacuum precision casting from a lightweight, high-strength metal material such as titanium. Is injected into the injection mold, and a single polymer synthetic resin such as ABS, PP, FRP, acrylic Filler of a sieve or a mixture of copolymers thereof and ultra-high-elastic materials such as carbon fiber, porous ceramics, etc. may be filled by insert injection or blow molding to be integrally molded. Metallic wood that can be provided at low cost by reducing the production cost by forming a spherical hollow part in communication, preventing the head from twisting, improving the flying distance of the ball, and minimizing the hook and slice. It relates to a golf club and a method of manufacturing the same.

For drivers, brass, spoons, buffy and cleats (hereinafter referred to as wood golf clubs), commonly referred to as wood, the face of the wood golf club head, which plays a role of elastic repulsion when the golf ball is hit, The thinner the periphery of the face combined with other parts, the greater the repulsive force, the better the distance of the batting, and the lower the center of gravity of the wood golf club, the lower the center of gravity. Can be.

Due to these factors, in order to maintain the sufficient repulsion force, elasticity and strength of the wood golf club head, the face of the wood golf club head is currently introduced (titanium faced head) composed of new materials such as titanium or titanium alloy.

However, in constructing the golf club head as well as the face or insert of the currently appearing titanium or titanium alloy wood golf club, the titanium plate or titanium alloy plate is generally cut to the required size and thickness, and the sole and bag are individually. Each component of the golf club head, such as soul, heel, neck, hosel, and face, is formed by forging through several steps individually, and then welded and combined to form a golf club head or face or insert. A golf club head is formed by casting and molding a body of a wood golf club head except for the above, and welding and bonding a face made of titanium or titanium alloy to the front surface of the wood golf club head.

However, the conventional method of separately molding each component in the form of cutting and forging as described above and then welding them together is not only exposing the disadvantage of increasing the production cost due to the complicated manufacturing process and increasing the production cost. That is, it is difficult to precisely process the thickness of the face to the required thickness or curved surface, which requires a highly skilled technique or expensive equipment for their processing, which shows a problem that the manufacturing cost increases further. Since it is difficult to keep the thickness of the face of the face constant, the ball may be damaged due to the depression of the ball surface due to the repulsive impact when the golf ball is hit.The distance of the batter is shortened due to the unstable face repulsion and the hook or slice Indicates various problems, such as There.

Therefore, the present invention was created to improve the problems and disadvantages of the conventional wood golf club, the present invention is integrally formed with a precision vacuum casting metal head cup body made of a metal material such as titanium or titanium alloy and polymer synthetic resin therein Wood golf club head is made of double material joining structure to fill filler of mixture of high elastic material such as carbon fiber and porous ceramic, and it prevents warping of head, improves distance of hit and minimizes hook and slice. It is an object of the present invention to provide a metal wood golf club and a method for manufacturing the same, which can provide mass production at a low cost by providing a high-precision head manufacturing.

In addition, the present invention is precisely designed in the form of an ellipse and convex lens desired to form the thickness of the face of the face by forming an elastic support on the back of the face is formed of titanium and titanium alloy. Another object is to provide a metal wood golf club head that can be processed and configured to make the adjacent portion of the face thinner to maximize the repulsion of the face of the face.

In addition, the present invention forms a spherical hollow inside the wood golf club head to facilitate the design and manufacture of the low center of gravity head, and quickly disperses the internal impact at the time of hitting to prevent hooks and slices, Another object is to provide a metal wood golf club head that produces a clean and refreshing hitting sound effect.

In order to achieve the above object, the present invention provides a wood golf club head comprising two elastic supports, a neck and a lower end of which are placed in parallel between the face and the sole of the head and the rear side of the face in the swing direction. All head components, such as a hosel, which are formed to penetrate one side of the elastic support and extend into the interior between the two elastic supports, are integrated with a lightweight, high-strength metal material such as titanium, and molded by vacuum precision casting to form a metal head cup body. After molding, the metal head cup body, which is a single structure, is put into an injection mold, and then a single polymer composite resin such as ABS, PP, FRP, acrylic, copolymers thereof, carbon fiber, porous ceramics, etc. Filling of a mixture of ultra-light, high-elastic material, such as such as the injection molding method or blow molding method to be integrally molded In order to form a spherical hollow portion communicating with the hosel on the inner side or the head bottom portion between the two elastic supports, the accompanying drawings and the preferred embodiments will be described in detail.

1 is a manufacturing process of the wood golf club head of the invention, Figure 2 is a perspective view of the overall appearance of the present invention, Figure 3 is a perspective view of a metal head cup body of the wood golf club head according to an embodiment of the present invention, Figure 4 is a front view of the wood golf club head of the present invention, Figure 5 is a cross-sectional view taken along the line AA of Figure 4, Figure 6 is a cross-sectional view taken along the line BB of Figure 2, Figure 7 is a wood golf club according to a preferred embodiment of the present invention It is a cross-sectional view of the metal head cup body of a head.

As shown in Figs. 1 to 7, the present invention is to form the head (1) of a metal wood golf club, the face (2) and the sole (3) of the head (1) and the rear of the face (2) and Two elastic supports (4), (5) and the neck (6), the back soul (7) and the lower end (8a) are placed in parallel in the swing direction on the upper surface of the sole (3) one side elastic support (5) Titanium is a component of all the heads 1, such as a hosel 8, a toe 9 at the distal end, and a heel 10, which are formed to penetrate through the two elastic supports 4 and 5. After molding the metal head cup body 11 by integrating with a lightweight, high strength metal material such as vacuum precision casting, and then putting the metal head cup body 11 as an integrated unit into an injection mold, the metal head cup body (11) Inside the polymer composite resin such as ABS, PP, FRP, acrylic, mono- or copolymers thereof and ultra-light weight such as carbon fiber, porous ceramics, etc. Filling the filler (12a) of the mixture of the elastic material by the insert injection method or blow molding method to be molded into the crown (12) integrally, the inner or the head between the two inner elastic support (4), (5) of the crown (12) At least one spherical hollow part 13 communicating with the lower end part 8a of the hosel 8 is formed in the bottom part of 1).

The present invention for obtaining the metal wood golf club head 1 as described above is a manufacturing method and other processes as follows.

First process (metal head cup body forming process)

As in the manufacturing process diagram of FIG. 1, first, the face 2 of the head 1 of the metal wood golf club is made up of: a soul 3; And two elastic supports (4) and (5) mounted in parallel on the rear side of the face (2) and on the upper surface of the sole (3) in the swing direction; Neck 6, back soul 7; And a hosel 8 which is formed in a state in which the lower end portion 8a penetrates the one side elastic support 5 and extends inwardly between the two elastic supports 4 and 5; Tow 9; Light weight, high strength such as titanium, using ceramic molds (such as zirconia sand molds) and vacuum precision casting equipment (not shown) for integrally molding all the components of the head 1 such as the heel 10. Vacuum precision casting with a metal material yields a metal head cup body 11 of a single structure in which all of the above components are integrated.

The head 1 of the metal wood golf club obtained in this process can be molded precisely and precisely in a state of precision casting by a ceramic mold that is precisely processed, thereby exerting a repulsive force due to elasticity when the golf ball is hit (2). ) Adjoining boundary (a) of the sole (3), the neck (6), the tow (9) and the heel (10) adjacent to the face (2) to form a desired thickness, but to maximize the repulsion force to improve the flying distance. , b, c, and d can be formed to project a striking surface such as a concave lens shape 2a or an elliptical shape 2b thinner than the center portion e of the face 2, and also the face 2 Elastic support (4), (5) is formed on the rear surface of the sole and the upper surface of the sole (3) in parallel with the swing swing direction of the face (2) against the impact applied to the face (2) when hitting the golf ball Supports the hitting surface on both sides to prevent damage to the face (2) The more the repulsive force at the time of addition it is possible to exert the maximum force of significantly improve the flying distance of the ball.

Therefore, in the present invention in which the face 2 is formed by vacuum precision casting integrally with the effective element of the head 1 as described above, the face 2 has a complicated shape such as a concave lens shape 2a and an ellipse shape 2b. The design can be effectively executed, and the adjacent boundary portions (a, b, c, d) with other adjacent components can be precisely maintained so that the uniform and desired thickness variations with which the thickness variation with the center portion (e) are reliably ensured. It is possible to obtain a metal head cup body (11) with excellent performance can be designed and manufactured precisely.

In addition, the thickness of the elastic support (4), (5) formed on the rear surface of the face (2) and the upper surface of the sole (3) in parallel in the swing rubbing direction in this process to support the face (2) to increase the repulsive force at the time of hitting ( T) varies depending on the size of the head 1, but is preferably about 0.5 mmt to 4 mmt, and the distance D between the elastic supports 4 and 5 is the width W of the effective hitting surface of the face 2. Most preferably, it is formed by opening more than 80%.

If the thickness (T) of the elastic support (4), (5) is less than 0.5mmt, the support force for the face (2) at the time of hitting is weak, the adjacent boundary (a, b, c, formed thinner than the center (e) at the time of hitting) d) may cause breakage or collapse, so that at least the thickness T of the elastic supports 4 and 5 is preferably 0.5 mmt or more, and in the case where the thickness T exceeds 4 mmt, the face ( 2) The repulsive force of the ball tends to be shortened by reducing the repulsive force of the ball, so that the resilient force is exerted on the face 2 to maximize the distance, and the elastic support 4, ( 5) The thickness (T) is most preferably about 0.5mmt ~ 4mmt, the spacing (D) of the elastic support (4), (5) determines the actual effective hit surface of the face (2), in view of this It is most preferable that the gap D be secured at an interval D for securing a distance of at least 80% or more with respect to the distance W of the hitting surface of (2).

In addition, the hosel 8 also has its end penetrating through one elastic support (5) to be formed as close as possible to the upper side of the inner side of the soul (3) to the shaft 14 when completing the metal wood golf club soul (3) Insertion deeply coupled to the inner surface to provide a sense of stability of the coupled state of the shaft (14).

2nd process (Crown injection molding process)

In this step, the metal head cup body 11 obtained by integrating the components by the vacuum precision casting of the first step is introduced into an injection mold, and then the crown 12 is integrally formed and both sides of the elasticity inside the crown 12 are formed. It is an injection process for forming at least 1 or more spherical hollow part 13 which communicates with the lower end part 8a of the hosel 8 in the inner side between the support stand 4 and 5 or the bottom face of the head 1.

First, the metal head cup body 11 is injected into an injection mold (not shown), and a filler of a polymer composite resin such as ABS, PP, FRP, and acrylic, or a mixture of copolymers thereof and ultra-light and high elastic materials such as carbon fibers and porous ceramics is prepared. Filling the crown (12a) by the insert injection method or blow injection molding method to form the crown 12 integrally, the inner side of the inner or between the head (1) between the two elastic support (4), (5) inside the crown (12) At least one or more spherical hollow portions 13 communicating with the lower end portion 8a of the hosel 8 are formed in the bottom face portion.

In this process, the spherical hollow portion 12 can be formed by adopting both the blow injection molding method and the insert injection molding method for the shaping of the crown 12 and the shaping of the spherical hollow portion 13.

6 and 7 illustrate a state in which the spherical hollow part 13 is formed inside the crown 12 by the blow injection molding method.

As shown in FIGS. 6 and 7, in the case of blow injection molding, a single polymer composite resin such as ABS, PP, FRP, acryl, copolymers thereof, and carbon are injected into the metal head cup body 11 into the injection mold (not shown). The filler 12a is injected by injection at a high temperature of 300 to 500 ° C. so that the filler 12a, which is a mixture of ultra-light and high elastic materials such as carbon fiber and porous ceramic, is pressed onto the metal head cup body 11, thereby compressing the filler 12a. Air is injected into the mold at a pressure of 0.5 to 10 Kgf / cm 2 through the instantaneous hosel (8) through the end portion (8a) of the hosel (8) which penetrates the one support (5) between the two support (4) and (5). The filler 12a is formed above the metal head cup body 11 while the hollow hollow 13 is formed in communication with the hosel 8 between the elastic supports 4 and 5 by the air injected by injection. The crown 12 is to be molded in which the hollow portion 13 The pressure of the air injected by the filler 12a injected into the silver and the total balance of the wood golf club such as a driver is in the range of about 0.5 to 10 Kgf / cm 2 using an auto pneumatic machine (not shown) equipped with a flow meter. It can be adjusted to form a hollow portion 13 having a size of about 10 ~ 200cc inside the head 1, the size (R) of the hollow portion 13 is the interval between the elastic support (4), (5) It is to be formed in the range of (D), the thickness of the crown 12 is good to maintain 5 ~ 10mmt.

As described above, the hollow part 13 formed inside the head 1 disperses shock waves or forces generated on the hitting surface of the golf ball quickly and efficiently through the internal spaces of the hosel 8 and the shaft 14. Not only to disperse, but also to generate a crisp ball sound by the wave-wave principle by the wavelength flowing through the inside of the shaft 14, it is possible to obtain a pleasant effect, and also to adjust the volume of the hollow part 13 arbitrarily The low center of gravity design of the head 1 is possible, and the occurrence of hooks and slices can be suppressed, and the size of the hollow part can be arbitrarily adjusted, thereby limiting the size of the volume (cc) of the head 1 to a large capacity cup at a small capacity. Can be designed and manufactured in various ways.

Meanwhile, in forming the hollow part 13 using the insert injection molding method as shown in FIG. 9, a synthetic resin or metal ball 15 having a volume of 10 to 200 cc in which the hollow part 13 is formed in advance is prepared, and the metal head cup body ( 11) Inserted into the end portion 8a of the hosel 8 so as to penetrate the inside, and then into a single body or a mixture of polymer composite resins such as ABS, PP, FRP, and acrylic, and ultra-light high elastic materials such as carbon fiber and porous ceramics. The filler 12a is injected and injected into the synthetic resin or metal ball 15 having the hollow portion 13 formed therein, so that the filler 12a is filled and injected around the synthetic resin or metal ball 15 having the hollow portion 13 formed therein. The crown 12 is integrally formed with the built-in state. Even in this case, instead of injecting air for forming the hollow portion 13, the blow molding method described above is merely to insert the synthetic resin or metal ball 15 having a predetermined capacity cc to form the hollow portion 13. The same effect can be obtained.

Also in this case, the hollow portion 13 of the synthetic resin or the metal ball 15 is in communication with the hosel 80, and has the same function as the blow molding method described above.

On the other hand, in forming the head (1) of the metal wood golf club in the above, in the swing direction side ends on the face (2) and the sole (3) of the head (1) and the rear and the sole (3) of the face (2) Two elastic supports (4), (5) and the neck (6), the back sole (7) and the lower end portion (8a) that is placed in parallel through the one elastic support (5), two elastic supports (4), ( 5) The components of all the heads 1, such as the hosel 8, the toe 9 and the heel 10, which are molded in the state extending inwardly, are integrated with a lightweight, high-strength metal material such as titanium. The case of forming the metal head cup body 11 as a single body by vacuum precision casting has been described, but the present invention is not limited thereto.

That is, Figure 10 is another embodiment 1 for constituting the metal head cup body 11 in the present invention, while the metal head cup body 11 is molded in the above-described embodiment and process by vacuum precision casting, the face 1a Two elastic supports (4), (5) and a neck (6), which are vertically vertically terminated in the swing direction on the rear surface of the sole (3) and the face (2) of the head (1) and the upper surface of the sole (3), The hosel 8 and the toe of the tip that are formed in a state in which the back sole 7 and the lower end 8a penetrate one elastic support 5 and extend inwardly between the two elastic supports 4 and 5. 9), the heel 10 is formed integrally with titanium or titanium alloy, and the face 2 is made of titanium or titanium alloy, iron-boron, nickel-copper, nickel-zirconium, nickel-phosphorus metal such as nickel-phosphorus After selecting one of the forging or casting molding to form the face (2) in the form of concave lens (2a) or elliptical (2b) individually, the face (2) After forming by welding to the sole (3), the elastic support (4) (5) and other adjacent portions of the metal head cup body (11), the crown (12) may be integrally molded. In this case, unlike the above-described basic embodiment, the composition of the face 2 is variously formed of all materials including titanium or titanium alloy, and the formation of the whole hollow portion 13 to be different only in the welded portion, elasticity The configuration of the support (4), (5) is completely the same can exhibit the same function and effect.

In addition, in the basic embodiment, the case in which the hollow portion 13 is formed between the elastic supports 4 and 5 is described, but as another embodiment 2, the vent hole on one side of the elastic support 4 and 5 is provided. When (4a) and (5a) are drilled and injection-molded at a high temperature of 300 to 500 ° C. in the second process, when pneumatic pressure is injected, between the elastic supports 4 and 5 and both sides, that is, the lower half of the inside of the head 1 The hollow portion 13 may be formed more widely over the sole, and the plastic ball 15 is attached to the left and right sides of the upper elastic support 4 and 5 of the sole 3 and injection molded to the inside of the head 1. The hollow part 13 may be formed throughout the lower part.

As described above, the present invention is a wood as a double material joining structure in which a metal head cup body made of a metal such as titanium or titanium alloy is integrally formed by precision vacuum casting and filled therein with a filler such as a polymer synthetic resin or carbon fiber or porous ceramic. The golf club head is manufactured, and an elastic support is formed on the rear face of the face to precisely design an ellipse and a convex lens in which the face shape of the face is desired. By forming a thinner shape of the adjacent part of the face, it prevents the head from twisting and maximizes the repulsion force of the face of the face, improving the distance of the ball, and forming a spherical hollow inside to design the low center of gravity head. It can be easily carried out, and the internal shocks are quickly dissipated at the time of hitting, preventing hooks and slices, and the refreshing hitting sound generated at the time of hitting, generating the sound of refreshing hits, making the hitting feeling lighter, etc. It is possible to manufacture high-performance heads in high-volume precision, greatly reducing production costs and providing large quantities at low cost.

1 is a manufacturing process of the wood golf club head of the present invention

2 is a perspective view of the overall appearance of the present invention

3 is a view of the wood golf club head according to an embodiment of the present invention

       Perspective view of the metal head cup

Figure 4 is a front view of the wood golf club head of the present invention

5 is a cross-sectional view taken along the line A-A of FIG.

6 is a cross-sectional view taken along the line B-B of FIG.

7 is a view of the wood golf club head according to an embodiment of the present invention

       Cross section view of metal head cup

8 (a) and 8 (b) are structural examples of the face of the present invention.

9 is another embodiment of the hollow portion of the present invention

10 is another embodiment of the metal head cup body of the present invention

11 to 12 show the hollow portion on the bottom of the head body.

       As another embodiment,

11 is a perspective view of the same,

12 is a cross-sectional view of the same.

* Explanation of symbols for the main parts of the drawings

1: head 2: face 2a: concave 2b: oval 3: soul

4,5: elastic support 6: neck 7: back soul 8: hosel 8a: bottom 9: toe

DESCRIPTION OF SYMBOLS 10 Heel 11: Metal head cup body 12 Crown 12a Filling material 13 Hollow part

14: shaft 15: metal ball

Claims (12)

 A shaping head of a metal wood golf club, comprising: a face of a head; soul; And two elastic supports placed in parallel on the rear side of the face and the upper surface of the sole in a swing direction; Neck; A hosel formed in a state in which the back soul and the lower end extend inwardly between the two elastic supports through the elastic support on one side; Toe of the tip; A first step of forming a metal head cup body by integrating all head components, such as a heel, into a lightweight, high-strength metal material such as titanium to form a vacuum precision casting; After inserting the metal head cup body, which is a unitary unitary structure, into an injection mold, a method of insert injection or blow molding a filler made of a single polymer composite resin or a mixture of ultra-high elasticity such as carbon fiber, porous ceramic, etc. Method of manufacturing a metal wood golf club head, characterized in that the coupling of the second step of filling at least one spherical hollow portion communicating with the hosel to the inner bottom of the crown. The method of claim 1, The face of the head; soul; And two elastic supports placed in parallel on the rear side of the face and the upper surface of the sole in a swing direction; Neck; A hosel formed in a state in which the back soul and the lower end extend inwardly between the two elastic supports through the elastic support on one side; Toe of the tip; A method for manufacturing a metal wood golf club head, characterized in that the metal head cup body formed by vacuum precision casting is integrally formed by integrating all head elements such as heel into a lightweight, high-strength metal material such as titanium. The method of claim 1, Soul in the head; Two elastic supports vertically placed on the upper surface of the sole in a swing direction; Neck; A hosel formed in a state in which the back soul and the lower end extend inwardly between the two elastic supports through the elastic support on one side; Toe of the tip; A method for manufacturing a metal wood golf club head, characterized in that the metal head cup body is formed into a single body by integrating the above components of the head excluding the heel and the like into a lightweight, high-strength metal material such as titanium. The method according to claim 1 or 3, The face formed separately from the metal head cup body can be cut, forged or cast formed by selecting one of the metals of the metal such as titanium, titanium alloy, iron-boron, nickel-copper, nickel-zirconium and nickel-phosphorus. Metal wood golf club head manufacturing method. The method according to claim 1 or 2, The method of manufacturing a metal wood golf club head, characterized in that the elastic support is further formed by vacuum precision casting in a state that is integrally coupled to each other at the sole top and face rear. The method of claim 1, After inserting the unitary metal head cup body into the injection mold, injection molding the crown with a filler made of a single polymer composite resin or a mixture of ultra-high elasticity such as carbon fiber and porous ceramics inside the metal head cup body, And forming the at least one spherical hollow portion communicating with the hosel on the bottom of the inner head of the crown by blow molding. The method of claim 1, After inserting the metal head cup body, which is a unitary structure, into the injection mold, injection molding the crown with a filler made of a single polymer composite resin or a mixture of ultra light and high elasticity such as a copolymer and carbon fiber, porous ceramic, etc. And attaching the hollow ball to the end of the elastic support to insert the inside of the elastic support, and then injection molding the crown to inject the crown by forming at least one spherical hollow portion communicating with the hosel at the bottom of the inner head of the crown. Metal wood golf club head manufacturing method characterized in that. In shaping the head 1 of the metal wood golf club, the face 2 and the sole 3 of the head 1 and the rear face of the face 2 and the upper surface of the sole 3 are placed in parallel in the swing direction. Two elastic supports (4), (5) and the neck (6), the back sole (7) and the lower end (8a) is penetrated through the one elastic support (5) between the two elastic supports (4), (5) Vacuum precision casting by integrating components of all heads 1, such as hosel 8, tip toe 9, and heel 10, which are formed to extend into the inside of the body, with a lightweight, high-strength metal material such as titanium After molding the metal head cup body 11 by molding into a metal head cup body 11, which is an integrated unitary structure, into the injection mold, ABS, PP, FRP, acrylic, etc. Crown (12) by injecting a filler (12a) made of a single polymer or a copolymer thereof and a mixture of ultra-light and high elasticity such as carbon fiber, porous ceramics, etc. And a spherical hollow portion 13 communicating with the lower end portion 8a of the hosel 8 at the inner bottom surface between the two inner elastic support members 4 and 5 of the crown 12. Features a metal wood golf club head. The method according to claim 1 or 8, Face (2) is a metal wood golf club head, characterized in that the adjacent connecting portion (a, b, c, d) with the adjacent portion is formed in a thin, concave lens shape protruding the center hitting (e). The method according to claim 1 or 9, Face (2) is a metal wood golf club head further comprises a thinly formed adjacent connecting portion (a, b, c, d) with the adjacent portion, and is formed in an elliptical shape protruding the center hitting (e). The method of claim 9, The spherical hollow portion 13 formed inside the head 1 is configured to be in communication with the hosel 8, wood golf club head made of metal. The distance D between the elastic supports 4 and 5 supporting the face 2 of the head 1 has a distance of 80% or more of the width W of the other surface of the face 2. Wood Golf Club Head.