JP2007267777A - Golf club head and golf club - Google Patents

Golf club head and golf club Download PDF

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Publication number
JP2007267777A
JP2007267777A JP2006093726A JP2006093726A JP2007267777A JP 2007267777 A JP2007267777 A JP 2007267777A JP 2006093726 A JP2006093726 A JP 2006093726A JP 2006093726 A JP2006093726 A JP 2006093726A JP 2007267777 A JP2007267777 A JP 2007267777A
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Japan
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part
portion
columnar
head
golf club
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JP2006093726A
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Japanese (ja)
Inventor
Shuichi Noguchi
Isamu Toshinari
勇 俊成
修一 野口
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Mizuno Corp
美津濃株式会社
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Priority to JP2006093726A priority Critical patent/JP2007267777A/en
Publication of JP2007267777A publication Critical patent/JP2007267777A/en
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Abstract

A golf club head capable of improving the rigidity of the head and extending the adjustable range of the mass distribution of the head and a golf club including the head are provided.
A golf club head includes a head body having an outer shell structure, a face part constituting a part of the head body, a crown part constituting a part of the head body, and a part of the head body. And a sole portion 7 that faces the crown portion 5, a side portion 6 that constitutes a part of the head body and connects the crown portion 5 and the sole portion 7, and the crown portion 5, the sole portion 7, and the side portion 6. And a columnar portion 11 provided inside the head main body so as to connect at least two portions separated from each other.
[Selection] Figure 2

Description

  The present invention relates to a golf club head and a golf club, and more particularly to a golf club head including a columnar portion inside a head body and a golf club including the head.

  The head body of the golf club can be manufactured by casting, for example. In order to adjust the mass distribution of the head main body so as to optimize the head main body, a technique such as fixing a weight member to the head main body has been conventionally proposed.

  For example, in Japanese Patent Application Laid-Open No. 2004-81241, a weight member is fixed to a recessed portion provided in a head body, and the weight member is fixed to the recessed portion and has a box-shaped portion having a hollow receiving space therein and accommodated in the receiving space. The golf club head is characterized by comprising a weight adjusting material having a specific gravity different from that of the head body.

Japanese Patent Application Laid-Open No. 2005-305169 describes a golf club head having a weight that is detachably attached to a recess provided in the head body. A set of wood golf clubs with different positions is described.
JP 2004-81241 A Japanese Patent Laying-Open No. 2005-305169 JP 2005-515046 gazette

  In the golf club head described in each of the above-mentioned documents, the weight member is attached to the outer shell of the head main body, so there is a limit to the range in which the weight member can be attached. Therefore, there is a limit to the adjustable range of the center of gravity position, that is, the adjustable range of the head mass distribution.

  Further, in a large golf club head having a head volume of 400 ml or more, the head main body is generally thin, so that it can be said that the rigidity of the head tends to decrease. If a weight is attached to the outer shell of such a thin-walled head body, deformation of the head is promoted at the time of hitting, and there is a concern that the hitting sound and hit feeling may be adversely affected.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a golf club head capable of improving the rigidity of the head and extending the adjustable range of the head mass distribution, and a golf club equipped with the head.

  A golf club head according to the present invention comprises a head body having an outer shell structure, a face part constituting a part of the head body, a crown part constituting a part of the head body, and a part of the head body, A sole portion that faces the crown portion, a part of the head body, a side portion that connects the crown portion and the sole portion, and at least two portions that are separated from each other in the crown portion, the sole portion, and the side portion are connected A columnar portion provided inside the head body.

  A weight member may be attached to the columnar part. The columnar part may be connected to at least one of the sole part and the side part. In this case, at least one of the sole part and the side part and the connecting part between the columnar part are provided with an opening part that opens on at least one surface of the sole part and the side part, and a weight member is attached to the opening part. You may do it. The columnar part may have a position adjusting mechanism that can adjust the position of the weight member.

  The columnar part may have a branch part. Further, the columnar part may have a hollow structure. In this case, a weight member may be mounted inside the columnar part. Furthermore, the columnar part may be integrally formed with the head body. The columnar portion may include a set of fixing portions provided in the head main body and a connecting member that connects the fixing portions and is made of a material having a specific gravity lower than that of the head main body.

  The head main body may include a head main body base having an opening in at least one of the face portion and the crown portion, and a member attached to the head main body base so as to close the opening of the head main body base. Good. Further, a space portion may be left between the outer peripheral surface of the columnar portion and the head body.

  The golf club according to the present invention includes the golf club head as described above.

  The golf club head of the present invention includes a columnar portion that connects at least two portions separated from each other in the crown portion, the sole portion, and the side portion, so that the head body can be reinforced and the rigidity of the head body can be improved. Can do. Further, by providing the columnar part as described above, a necessary amount of mass can be easily arranged at a position away from the outer shell of the head body. Thereby, the adjustable range of the mass distribution of the head can be extended. As a result, the rigidity of the head can be improved, and the adjustable range of the head mass distribution can be expanded.

  Hereinafter, a golf club head and a golf club provided with the golf club head according to embodiments of the present invention will be described.

  The golf club in the present embodiment includes a golf club head, a shaft, and a grip described later. In addition, a well-known thing is employable as a shaft and a grip. The present invention is useful for wood golf clubs, but can also be applied to iron golf clubs.

  The golf club head according to the present embodiment includes a head body having an outer shell structure, a face part constituting a part of the head body, a crown part constituting a part of the head body, and a part of the head body. , A sole part facing the crown part, a part of the head body, a side part connecting the crown part and the sole part, and at least two parts separated from each other in the crown part, the sole part and the side part are connected And a columnar portion provided inside the head main body. The volume of the head is, for example, 350 ml or more (preferably 400 ml or more).

  The head main body is typically made of metal, but it is also possible to produce a head main body by combining a metal member and a non-metal member. The head main body typically forms a base portion that can be said to be a skeleton of the head main body, and includes a head main body base having an opening and various parts (members) attached to the head main body base. The head main body base is made of metal and can be formed by casting, for example. A head body can be produced by combining the head body base with one or more metal parts or one or more non-metal parts.

  Examples of the form of the head main body base include, for example, an opening at the center of the face portion, and a peripheral portion of the face portion, a crown portion, a side portion, and a sole portion that are integrally molded, Has an opening at the center of the head, and a peripheral portion of the crown, a face, a side, and a sole are integrally formed, or has an opening at the center of the face and the crown. The peripheral part of the face part and the crown part, the side part, and the sole part may be integrally formed. It is also conceivable to provide one or a plurality of openings in the side part or the sole part.

  Examples of the material of the head main body base include a titanium alloy (for example, αβ titanium alloy: Ti-6Al-4V) which is a material that can be cast. On the other hand, examples of the metal part mounted so as to close the opening of the head main body base include a titanium alloy or a magnesium alloy plate. Examples of the non-metallic part that is mounted so as to close the opening of the head main body base include a plate material of FRP (Fiber Reinforced Plastics).

  When an opening is provided at the center of the face portion, a face member made of αβ titanium alloy or β-based titanium alloy (Ti-22V-4Al, Ti-15Mo-5Zr-4V-4Al, etc.) It is conceivable to join the face part) to the head main body base by welding or the like. This face member is preferably produced by forging. The coefficient of restitution can be controlled by changing the forging method or using different types of members. When providing an opening in the crown, it is conceivable that a crown member (crown part) made of a material having a specific gravity lower than that of the head main body base is attached to the head main body base. In this case, the center of gravity of the head can be lowered. A plate material made of the same material as the head main body base may be used as the crown member.

  The columnar portion may be any columnar portion that can improve the rigidity of the head body, and the shape of the columnar portion can be arbitrarily selected. Typically, the shape of the columnar portion may be tubular or cylindrical (the cross-sectional shape is annular or circular), but it may be a polygonal column shape (cross-sectional shape is polygonal) such as a triangular prism or a quadrangular prism. Good. It is also possible to change the width (diameter) of the columnar part in the length direction (axial direction) of the columnar part. For example, when the columnar part is provided from the crown part toward the sole part, it is conceivable to make the width on the crown part side narrower than the width on the sole part side. Thereby, more mass can be arranged on the sole portion side than on the crown portion side, and the center of gravity of the head can be lowered. Furthermore, you may change the width | variety of a columnar part in several steps in the length direction of a columnar part.

  The columnar part may have a hollow structure or a solid structure. When the columnar part has a hollow structure, the thickness of the columnar part can be arbitrarily set, but it is conceivable that the thickness is, for example, about 0.8 mm to 1 mm. You may change the thickness of this columnar part. For example, it is conceivable to change the thickness in at least one of the length direction of the columnar part and the outer peripheral direction.

  Further, the internal space of the columnar part may be communicated with the space around the columnar part by notching a part of the columnar part. Specifically, it is conceivable that the columnar portion has a shape obtained by bending or curving a plate-like member (for example, a cross-sectional shape is V-shaped, U-shaped, C-shaped, or the like).

  Further, the columnar portion may be linear, curved, or bent as long as it connects at least two portions separated from each other in the crown portion, the sole portion, and the side portion. Good.

  Further, adjacent portions in the head main body may be connected by the columnar portion, and portions in the head main body facing each other may be connected by the columnar portion. For example, a columnar part may be provided so as to connect the crown part and the sole part, and a columnar part may be provided so as to connect the crown part and the side part. Further, a columnar part may be provided so as to connect the side part and the sole part. Furthermore, a columnar part may be provided so as to connect the crown part, the sole part, and the side part. However, the columnar part is preferably provided separately from the face part so as not to hinder the deformation of the face part upon hitting.

  The outer peripheral surface of the columnar part may be in contact with the outer shell of the head body other than the face part, but is separated from the outer shell of the head body other than the face part, and the outer shell of the head body and the columnar part It is preferable to leave a space between the outer peripheral surface.

  Although any direction can be selected as the extending direction of the columnar part, for example, it can be considered to extend in a direction away from the face part or in a direction along the face part. Here, “the columnar portion extends in a direction away from the face portion” means that the extending direction of the columnar portion (the length direction of the columnar portion: the axial direction) is a direction perpendicular to the face surface. The term “extends in the direction along the face portion” means that the extending direction of the columnar portion (the length direction of the columnar portion: the axial direction) is parallel to the face surface. This means that it has a component in various directions.

  The columnar part may be formed of the same material as the head main body base, but may include a material different from the head main body base. Further, it may be formed of a single material or part, or may be formed of a plurality of materials or parts.

  When the columnar part is formed of the same material as the head main body base, it can be considered that the columnar part is integrally formed with the head main body base by casting, for example. In order to integrally form the columnar part with the head main body base, for example, a core configured by combining a plurality of parts is disposed in a molding die for the head main body base, What is necessary is just to shape | mold a columnar part inside a head main body base with the said core while shape | molding an external shape. Then, after forming the head main body base and the columnar section, the core is taken out from the inside of the head main body base through an opening provided in the head main body base such as a face opening. Thereby, the head main body base and the columnar part can be integrally formed.

  Even when the plurality of columnar parts are integrally formed with the head main body base, the head main body base and the columnar part can be integrally formed by appropriately selecting the structure of the core. In addition, it is preferable to appropriately adjust the size of the opening provided in the head body base so that the core can be easily taken out from the inside of the head body base.

  On the other hand, a columnar portion may be formed by providing a pair of fixed portions inside the head body and fixing a connecting member such as a tubular member, a columnar member, or a plate-shaped member so as to connect the fixed portions. . In this case, the columnar portion can be formed using a material different from the head main body base.

  The fixing part may be integrally formed with the head body base by casting or the like, but the fixing part may be provided by attaching another part to the head body base. The fixing portion can be constituted by a cylindrical portion that rises from the inner surface of the head main body base to the inside of the head main body base, for example, but a fixing portion having an arbitrary structure is adopted as long as the connection member can be fixed. be able to. It is preferable that a through hole is provided in the outer shell of the head main body base located in the fixed portion, and the internal space of the head main body base and the space around the head main body base communicate with each other through the through hole. Accordingly, the connection member can be easily inserted into the inside of the head main body through the through hole, and the connection member can be easily fixed to the fixing portion.

  The connection member can be made of a material having a specific gravity lower than that of the head main body base. For example, it is conceivable to use a metal member such as an aluminum alloy or a non-metal member such as FRP. Examples of the non-metallic member include resin materials such as CFRP (Carbon Fiber Reinforced Plastic), GFRP (Glass Fiber Reinforced Plastic), polyamide resin containing glass fiber, polyamide resin containing carbon fiber, and polycarbonate resin. In addition, when using CFRP as a connection member, in order to ensure the intensity | strength more than predetermined, it is preferable that the thickness of a connection member shall be 1 mm or more.

  By using a low specific gravity connecting member as described above, the rigidity of the head can be improved while suppressing an increase in the mass of the head. When a non-metallic member such as FRP is used as the connecting member, the connecting member may be fixed to the fixing portion using an adhesive or the like. Note that a plurality of columnar portions may be provided by providing a plurality of sets of fixing portions and attaching a connecting member to each set of fixing portions.

  By providing the columnar part as described above inside the head body, the head body can be reinforced and the rigidity of the head body can be improved. Thereby, not only the hitting sound but also the improvement in hit feeling can be expected.

  Further, by providing the columnar portion as described above, it is possible to easily dispose a necessary amount of mass at a position away from the outer shell of the head body, which is difficult to dispose the mass with the conventional head. it can. Thereby, the adjustable range of the mass distribution of the head can be expanded. Here, the head mass distribution can be finely adjusted by changing the width (diameter) and thickness of the columnar portion.

  As described above, according to the golf club head of the present embodiment, the rigidity of the head can be improved to improve not only the hitting sound but also the hit feeling, and further the adjustable range of the head mass distribution can be expanded. It is also possible.

  The number of the columnar portions may be singular or plural, but when providing a plurality of columnar portions, it is preferable to provide the columnar portions at intervals so that the respective columnar portions do not interfere with each other. Moreover, when providing a some columnar part, although each columnar part may be provided so that it may extend in the same direction, you may provide so that it may extend in a different direction.

  The columnar part may have a branch part. For example, it is conceivable to form a T-shaped columnar portion. The number of branch portions may be singular or plural, and the shape of the branch portions can be arbitrarily selected. When providing a some branch part, the extension direction of each branch part may be the same direction, and a different direction may be sufficient as it.

Further, a weight member may be attached to the columnar part. As a material of the weight member, typically, a material having a higher specific gravity than the head body (or a material having a weight of about 10 g / cm 3 or more) may be employed. For example, when the head body is a titanium alloy, it is conceivable to employ a tungsten alloy as the weight member.

  Any shape can be adopted as the shape of the weight member. The weight member may be mounted on the outer surface of the columnar part, but may be mounted inside the columnar part. Although any method can be adopted as a method of attaching the weight member to the columnar portion, for example, a method in which screws are respectively provided on the surfaces of the columnar portion and the weight member and the weight member is screwed to the columnar portion, or a weight is attached to the columnar portion. Examples thereof include a method of adhering members, a method of fixing a weight member to the columnar portion via a fixture, and the like.

  The number of weight members may be singular or plural, and can be arbitrarily selected. When a plurality of weight members are attached to the columnar part, weight members having the same mass may be attached to the columnar part, or weight members having different masses may be attached to the columnar part. The mounting position of the weight member can also be set arbitrarily. When a plurality of columnar portions are provided, a single or a plurality of weight members may be attached to all the columnar portions, or a single or a plurality of weight members may be selectively attached to only some of the columnar portions. .

  When the columnar part is connected to at least one of the sole part and the side part, at least one surface of the sole part and the side part is connected to at least one of the sole part and the side part and the connection part of the columnar part. An opening that opens may be provided. Although the number of the openings may be single or plural, the openings are typically provided in a concave shape in the sole portion and / or the side portion.

  A weight member may be attached to the opening. Accordingly, the opening can be closed with the weight member, and the appearance can be improved without controlling the position of the center of gravity of the golf club head. As a mounting method of the weight member in the opening, for example, a method of forming a screw on the outer peripheral surface of the weight member and the inner peripheral surface of the opening and screwing the weight member into the opening, or a weight member And the like, and a technique of adhering a weight member to the opening. When the weight member is screwed into the opening, a screw may be used as the weight member.

  The columnar part may have a position adjusting mechanism that can adjust the position of the weight member. Thereby, the adjustable range of the mass distribution of the head can be further expanded. As an example of the position adjusting mechanism, for example, a concave portion or a hole provided in a columnar portion can be cited. In this case, an engaging portion that can be moved back and forth is provided in the weight member, and the engaging member is inserted into the concave portion or hole provided in the columnar portion and engaged with the columnar portion, whereby the weight member is fixed to the predetermined portion of the columnar portion. It is conceivable to hold it in position. In addition, you may provide a recessed part and a hole in the weight member side, and may provide the engaging part which can advance / retreat to the columnar part side.

  When the columnar part has a hollow structure, a weight member may be mounted inside the columnar part. In this case, screws may be formed on the inner peripheral surface of the columnar portion and the outer peripheral surface of the weight member, and the weight member may be screwed into the columnar portion. It is also conceivable to bond the weight member to the inside of the columnar part using an adhesive.

  When the columnar portion is provided using a non-metallic connecting member, the connecting member and the weight member may be integrally formed. For example, when a resin material such as CFRP or GFRP is used as the connection member, the connection member and the weight member can be integrally formed using insert molding or the like. On the other hand, it is also possible to provide the position adjusting mechanism as described above to the non-metallic connecting member so that the position of the weight member can be adjusted.

  When a low specific gravity material such as FRP is used as the connection member, the mass difference between the connection member and the weight member becomes large, so that the mass distribution of the head can be greatly changed. Here, by adjusting the position of the weight member by providing a position adjustment mechanism for the weight member in the columnar part, the adjustable range of the mass distribution of the head can be further expanded. Even when the attachment position of the weight member to the connection member is fixed, the position of the weight member in the head body can be easily changed by changing the insertion direction of the connection member into the head body base. it can. Also in this case, the mass distribution of the head can be changed greatly.

Embodiments of the present invention will be described below with reference to FIGS.
Example 1
1 to 4 show a golf club 1 and a golf club head 2 in Embodiment 1 of the present invention. As shown in FIG. 1, the golf club 1 according to the first embodiment includes a golf club head 2, a shaft 3, and a grip 4. Known shafts 3 and grips 4 are used.

  The golf club head 2 is manufactured by bonding a face member to the head main body base shown in FIG. The head main body base portion has a metal outer shell structure, and as shown in FIG. 2, a crown portion 5, a side portion 6, a sole portion 7, a face opening portion 9, a sole opening portion 10, and a columnar portion. 11.

  In the first embodiment, the head main body base is made of αβ titanium alloy (Ti-6Al-4V) and is formed by casting. At this time, the columnar portion 11 is also integrally formed with the head main body base. Therefore, in the first embodiment, the columnar portion 11 is also composed of an αβ titanium alloy.

  In order to integrally form the columnar part 11 as described above inside the head main body base, a core configured by combining a plurality of parts is placed in the molding die for the head main body base, and the molding metal mold is formed. The outer shape of the head main body base is formed with a mold, and the columnar portion 11 is formed inside the head main body base with the core. Then, after forming the head main body base and the columnar portion 11, the core is taken out from the inside of the head main body base through the face opening 9. Thereby, the head main body base and the columnar part 11 can be integrally formed. Even when the plurality of columnar portions 11 are integrally formed with the head main body base, the head main body base and the columnar portion 11 can be integrally formed by appropriately selecting the structure of the core.

  The face member (face part) is also made of αβ titanium alloy and is formed by forging. This face member is joined to the head body base so as to close the face opening 9 shown in FIG. In the first embodiment, the face member is joined to the head main body base by welding. Thereby, the face portion 8 can be formed as shown in FIG.

  FIG. 4 shows a cross-sectional view of the golf club head 2 taken along the plane 15 shown in FIG. As shown in FIGS. 4 and 3, the weight member 12 is attached to the sole opening 10. In the first embodiment, a screw is formed on the inner peripheral surface of the sole opening 10 and a screw made of a tungsten alloy and having a screw formed on the outer peripheral surface is adopted as the weight member 12, and the weight member 12 is used as the sole opening. Screw onto the part 10.

  As shown in FIG. 4, the columnar portion 11 has a hollow pipe shape and is formed so as to connect the crown portion 5 and the sole portion 7. In the present Example 1, the columnar part 11 has an enlarged diameter part at one end in the length direction. The thickness of the columnar part 11 is about 1 mm. The enlarged diameter portion of the columnar portion 11 defines the sole opening 10. As shown in FIG. 2, the sole opening 10 is located immediately below the connecting portion between the columnar portion 11 and the sole portion 7, and communicates the space inside the columnar portion 11 with the space around the golf club head 2. .

  The inventor of the present application described a golf club head 2 having the columnar portion 11 as described above and a golf club head 2 in which a weight having the same mass as the columnar portion 11 is fixed to the sole portion 7 without providing the columnar portion 11. The golf club head 2 having the columnar portion 11 is calculated by using a finite element method (FEM) to calculate the natural frequency generated in the face portion 8 and its periphery when the ball is hit at 48.8 m / s. The natural frequency of the golf club head 2 that does not have the columnar portion 11 was 4100 Hz. From this result, it is understood that the rigidity of the golf club head 2 can be improved by providing the columnar portion 11.

(Example 2)
Next, Embodiment 2 of the present invention will be described with reference to FIGS.

  As shown in FIG. 5, in the second embodiment, the columnar portion 11 is mainly configured by a set of fixing portions 19 a and 19 b and a connecting member that connects the fixing portions 19 a and 19 b. The fixing portions 19a and 19b are provided so as to protrude from the outer shell of the head body into the head body. In the example of FIG. 5, the fixing portion 19 a is integrally provided with the same material as the sole portion 7 and has a cylindrical shape. The fixing portion 19b is integrally provided with the same material as the crown portion 5, and has a cylindrical shape.

  In the second embodiment, the connecting member is constituted by a CFRP pipe. The connecting member can be fixed to the fixing portions 19a and 19b using an adhesive or the like, and has a weight member 14. In the example of FIG. 5, the weight member 14 is fixed inside a pipe-shaped connection member. In the second embodiment, the connection member and the weight member 14 are integrally formed, and the weight member 14 is fixed to the connection member when the connection member is formed.

  As shown in FIG. 5, the fixing portion 19a has a hollow structure, and the weight member 12 is screwed into the internal space of the fixing portion 19a. The weight member 12 is made of a screw made of a tungsten alloy (for example, a specific gravity of about 14). Since the internal space of the fixing portion 19a is open to the outer surface (bottom surface) of the sole portion 7, the head main body passes through the opening and the internal space of the fixing portion 19a when the connecting member is attached to the head main body. A connecting member can be inserted therein.

  Further, as shown in FIG. 5, on the inner surface of the sole portion 7, it extends from the fixing portion 19 a to the back portion (portion facing the face portion 8 in the side portion 6), that is, in a direction away from the face portion 8. Ribs 13 are provided. This can also contribute to improving the rigidity of the golf club head 2. The configuration other than the above is basically the same as that of the first embodiment.

  Next, the case where the position of the weight member 14 attached to the connection member is changed will be described with reference to FIGS.

  6 shows a case where the weight member 14 is installed at a high position (crown portion side) in the connection member, and FIG. 7 shows a case where the weight member 14 is installed at the center position in the height direction of the connection member. 8 shows a case where the weight member 14 is installed at a low position (sole portion side) in the connection member. Sweet spot height, center of gravity depth (distance between the center of gravity of the golf club head and the sweet spot), center of gravity distance when the weight member 14 made of tungsten alloy is mounted at the position shown in these drawings The distance between the center axis of the shaft and the center of gravity of the golf club head and the height of the center of gravity are shown in Table 1 below. The mass of the connecting member is 3 g, the mass of the weight member 14 is 8 g, and the mass of the golf club head 2 is 190 g.

  As shown in Table 1, the mass distribution of the golf club head 2 can be changed by changing the position of the weight member 14 attached to the connection member, and the sweet spot height, the center of gravity depth, the center of gravity distance, and the center of gravity height can be changed. It can be seen that the thickness can be adjusted.

  For example, for a golfer with a small amount of spin, as shown in FIG. 6, by installing the weight member 14 at a high position, the height of the center of gravity can be increased and the golf ball is likely to be spun after hitting. can do. On the other hand, as shown in FIG. 8, for a golfer with a large amount of spin, by installing the weight member 14 at a low position, the height of the center of gravity can be lowered, and it is difficult to spin the golf ball after hitting. can do.

(Example 3)
Next, Embodiment 3 of the present invention will be described with reference to FIGS. In the third embodiment, a position adjusting mechanism capable of adjusting the position of the weight member is provided.

  As shown in FIG. 9, in the third embodiment, a plurality of weight position adjustment holes 21 are provided in the columnar portion 11. The weight position adjustment hole 21 functions as a position adjustment mechanism. Further, as in the case of the second embodiment, ribs 13 are provided on the sole portion 7. Other configurations are basically the same as those in the first embodiment.

  FIG. 10 shows an example of a cross-sectional structure of the columnar part 11. In the example of FIG. 10, one set of weight position adjusting holes 21 is provided at a position facing each other, that is, a position shifted by 180 degrees in the outer peripheral direction of the columnar portion 11. The diameter of the weight position adjusting hole 21 is, for example, about 2 mm. Three sets of such weight position adjusting holes 21 are provided in the height direction of the columnar portion 11.

  As shown in FIG. 11, the weight member 14 is movably mounted inside the columnar portion 11, and an engagement portion described later is provided on the weight member 14 so as to be able to advance and retreat. The engaging portion is inserted into the weight position adjusting hole 21 and engaged with the columnar portion 11 to hold the weight member 14 at a predetermined position.

  Here, an example of the shape of the weight member 14 will be described with reference to FIGS. As shown in FIGS. 12 to 14, the weight member 14 includes a main body portion, a pair of balls 22, an operation concave portion 23, and a coil spring 25 installed in a through hole 24 provided in the main body portion. Have.

  The main body portion of the weight member 14 has a substantially cylindrical overall shape, and has a screw portion on the outer peripheral surface. In the third embodiment, a screw portion that can be screwed with a screw portion on the outer peripheral surface of the weight member 14 main body is formed on the inner peripheral surface of the columnar portion 11. The screw portion on the inner peripheral surface of the columnar portion 11 is provided at least in the vicinity of the weight position adjusting hole 21. For example, it is conceivable to form a screw portion having a length half the axial length of the weight member 14 in the vicinity of each weight position adjusting hole 21.

  As described above, by providing the screw portions on the outer peripheral surface of the weight member 14 and the inner peripheral surface of the columnar portion 11, the weight member 14 can be rotated and moved in the columnar portion 11, and the ball 22 can be moved to the weight. The position adjustment hole 21 can be fitted. In addition, although the thread part of the inner peripheral surface of the columnar part 11 may be selectively provided on the inner peripheral surface of the columnar part 11, it may be provided over the entire inner peripheral surface of the columnar part 11.

  As shown in FIG. 14, a through hole 24 is provided in the central portion of the weight member 14 in the longitudinal direction, and a coil spring 25 is installed in the through hole 24. The pair of balls 22 are respectively disposed on the openings of the through holes 24 and are urged by the coil springs 25 in the radial direction of the weight member 14. The diameter of the set of balls 22 is, for example, about 2.5 mm to 3 mm, and is larger than the diameter of the weight position adjusting hole 21. The size of the ball 22 may be set such that a part of the ball 22 can be fitted into the weight position adjusting hole 21 provided in the columnar portion 11.

  The operation recess 23 of the weight member 14 is provided on one axial end face of the weight member 14. In the third embodiment, a linear recess is formed as the operation recess 23. Thereby, the weight member 14 can be rotated by a jig such as a flat-blade screwdriver.

  In the golf club head 2 according to the third embodiment, in order to attach the weight member 14 to the columnar portion 11, the weight member 14 is inserted into the columnar portion 11 from one opening end of the columnar portion 11, and a minus driver or the like. The weight member 14 is moved along the columnar portion 11 by rotating the weight member 14 with a jig or the like. When the weight member 14 moves in the columnar portion 11 and the set of balls 22 of the weight member 14 reaches the weight position adjusting hole 21, the set of balls 22 is moved in the radial direction of the weight member 14 by the biasing force of the coil spring 25. The ball 22 can be moved outward and fitted into the weight position adjusting hole 21. Thereby, the ball 22 can be engaged with the columnar portion 11, and the weight member 14 can be held on the columnar portion 11 via the ball 22. In order to further move the weight member 14 from this state, the weight member 14 may be rotated and / or pressed in the length direction of the columnar portion 11. Accordingly, the weight member 14 can be moved within the columnar portion 11 while the ball 22 is retracted toward the weight member 14 against the urging force of the coil spring 25, and the engagement state between the ball 22 and the columnar portion 11 can be changed. It can be canceled.

Example 4
Next, Embodiment 4 of the present invention will be described with reference to FIGS.

  In the fourth embodiment, a plurality of columnar portions are provided. In the example of FIG. 15, two columnar portions 11a and 11b extending in different directions are provided. The columnar portions 11a and 11b connect the crown portion 5 and the side portion 6, extend in a direction from the face portion 8 toward the back portion, and are integrally formed with the head main body base portion. More specifically, one end (upper end) of the columnar portions 11a and 11b is connected to a face side portion located on the face portion side in the crown portion 5, and the other end (lower end) of the columnar portions 11a and 11b is connected to the side portion 6. It is connected to the back side portion located on the back side. Both the head main body base and the columnar portions 11a and 11b are made of an αβ titanium alloy.

  As shown in FIG. 16, side openings 17 and 18 are provided at the connection between the columnar parts 11 a and 11 b and the side part 6. On the other hand, no opening is provided in the connecting portion between the columnar portions 11a, 11b and the crown portion 5. As shown in FIG. 18, weight members 12a and 12b made of tungsten alloy screws are screwed into the side openings 17 and 18, respectively, and the side openings 17 and 18 are formed by the weight members 12a and 12b. To close. 18 is a cross-sectional view of the golf club head 2 taken along the plane 16 shown in FIG. The configuration other than the above is basically the same as that of the first embodiment.

  The inventor of the present application fixed a weight having the same mass as the columnar portions 11a and 11b on the sole portion 7 without providing the columnar portions 11a and 11b and the golf club head 2 having the columnar portions 11a and 11b as described above. With respect to the golf club head 2, when the natural frequency generated in the face portion 8 and its periphery when the ball was hit at 48.8 m / s was calculated using the finite element method, the golf having the columnar portions 11 a and 11 b The natural frequency of the club head 2 was 4299 Hz, whereas the natural frequency of the golf club head 2 without the portions 11a and 11b was 4100 Hz. From this result, it is understood that the rigidity of the golf club head 2 can be improved by providing the columnar portions 11a and 11b.

(Example 5)
Next, Embodiment 5 of the present invention will be described with reference to FIGS.

  Also in the fifth embodiment, a plurality of columnar portions are provided. As shown in FIGS. 20 and 21, also in the fifth embodiment, two columnar portions 11a and 11b extending in different directions are provided. These columnar portions 11a and 11b connect the crown portion 5 and the side portion 6 and extend in the direction from the face portion 8 toward the back portion, as in the fourth embodiment.

  In the fifth embodiment, two sets of fixing portions 19a, 19b, 20a, and 20b are formed integrally with the head main body base, and the fixing portions 19a and 19b are connected to each other and the fixing portions 20a and 20b are connected. Attach the connecting member. The connecting member is composed of a CFRP pipe. This connecting member can be installed between the fixing portions 19a and 19b and between the fixing portions 20a and 20b using an adhesive or the like. The head main body base and the fixing portions 19a, 19b, 20a, 20b are both made of an αβ titanium alloy.

  As shown in FIGS. 19 and 21, also in the fifth embodiment, side openings 17 and 18 are provided at the connection portions between the columnar portions and the side portions 6, respectively. No opening is provided in the connecting portion. As shown in FIG. 22, weight members 12a and 12b made of tungsten alloy screws are screwed into the side openings 17 and 18, respectively, and the side openings 17 and 18 are formed by the weight members 12a and 12b. To close. FIG. 22 is a cross-sectional view of the golf club head 2 taken along the plane 28 shown in FIG. The configuration other than the above is basically the same as that of the second embodiment.

  Next, the case where the positions of the weight members 14a and 14b attached to the connection member are changed will be described with reference to FIGS.

  FIG. 23 shows a case where both weight members 14a, 14b are installed at a high position (crown portion side) in the connection member. FIG. 24 shows both weight members 14a, 14b at the center position in the height direction of the connection member. 25 shows a case where both weight members 14a and 14b are installed at a low position in the connection member, and FIG. 26 shows a case where the weight member 14a is installed at a high position in the connection member. FIG. 27 shows a case where the weight member 14b is installed at a high position in the connecting member and the weight member 14a is installed at a low position in the connecting member. Show.

  Sweet spot height, center of gravity depth, center of gravity distance, center of gravity height, toe-heel direction moment of inertia, vertical direction (when the weight member 14 made of tungsten alloy is mounted at the position shown in these figures) Table 2 below shows the moment of inertia in the direction of crown and sole. The mass of the toe side connection member 11a is 2 g, the mass of the heel side connection member 11b is 1.8 g, and the mass of the toe side weight member 14a and the mass of the heel side weight member 14b are both 4 g. The mass of the golf club head 2 is 194 g.

  As shown in Table 2, the sweet spot height, depth of center of gravity, center of gravity distance, center of gravity height, inertia in the toe-heel direction of the golf club head 2 by changing the positions of the weight members 14a and 14b attached to the connecting members. It can be seen that the moment and the vertical moment of inertia can be adjusted.

  For example, for a golfer with a low trajectory, as shown in FIG. 25, by installing both weight members 14a and 14b at low positions, the depth of the center of gravity can be increased, and the golf club head 2 can The loft can be in a so-called sleeping state (a state where the face portion faces upward). On the other hand, for a golfer with a high trajectory, as shown in FIG. 23, the weight members 14a and 14b are both installed at a high position so that the depth of the center of gravity can be reduced. The loft can be prevented from becoming a so-called sleeping state.

  Also, for golfers with a low spin rate, as shown in FIG. 23, the weight members 14a and 14b are both placed at a high position, so that the height of the center of gravity can be increased and the golf ball spins after hitting. Can be easily applied. On the other hand, for golfers with a large amount of spin, as shown in FIG. 25, the weight members 14a and 14b are both placed at low positions, so that the height of the center of gravity can be lowered, and the golf ball is spun after hitting. Can be difficult to take.

(Example 6)
Next, Embodiment 6 of the present invention will be described with reference to FIGS.

  In the sixth embodiment, as shown in FIGS. 28 and 29, a crown opening 26 is provided in the crown portion 5, and a crown member (crown part) 29 is mounted so as to close the crown opening 26. As the crown member 29, a forged material made of a titanium alloy (for example, Ti-15V-3Al-3Cr-3Sn or KS120) and having a thickness of 0.9 mm can be used. As the crown member 29, a cast part made of a titanium alloy (for example, Ti-6Al-4V) or a magnesium alloy can be used. The crown member 29 can be fixed to the head main body base by welding, brazing, adhesive, or the like. Other configurations are the same as those in the fourth embodiment.

  In the sixth embodiment, since both the face opening 9 and the crown opening 26 are provided in the head main body base, when the columnar portions 11a and 11b are integrally formed with the head main body by casting, the columnar portions 11a and 11a, It becomes easy to take out the molding core 11b from the head main body base.

(Example 7)
Next, Embodiment 7 of the present invention will be described with reference to FIG.

  In the seventh embodiment, the extending direction of the columnar portions 11a and 11b is different from that of the fourth embodiment. More specifically, as shown in FIG. 30, one end of each of the columnar portions 11a and 11b is connected to a back side portion located on the back portion side in the sole portion 7, and the other end of the columnar portions 11a and 11b is connected to the crown portion 5. And connected to a face side portion located on the face portion 8 side. Other configurations are basically the same as those in the fourth embodiment. A face member (face part) 30 shown in FIG. 30 is joined to the head body base so as to close the face opening 9 provided in the head body base.

  As in the seventh embodiment, the mass distribution of the golf club head 2 can be changed by changing the extending direction of the columnar portions 11a and 11b, and various parameters such as the position of the center of gravity of the head can be adjusted. it can. Also, various parameters such as the center of gravity of the head can be variously changed by appropriately adjusting the number and shape of the columnar portions, the mass of the weight member mounted on the columnar portions, the mounting position, and the like.

(Example 8)
Next, Embodiment 8 of the present invention will be described with reference to FIGS. 31 and 32. FIG.

  In the eighth embodiment, a branch portion is provided in the columnar portion. In the example of FIG. 31, the columnar part 11b is provided so as to branch from the columnar part 11a. The columnar part 11a connects the crown part 5 and the sole part 7, and branches the columnar part 11b from the central part in the height direction of the columnar part 11a. The columnar part 11 b extends from the columnar part 11 a toward the back part of the side part 6, and one end of the columnar part 11 b is connected to the back part of the side part 6. A connecting portion between the columnar portion 11a and the sole portion 7 is provided with a sole opening, and a weight member 12a is attached to the sole opening. As shown in FIG. 32, a side opening 18 is provided at a connection portion between the columnar portion 11 b and the back portion of the side portion 6, and a weight member 12 b is attached to the side opening 18. The configuration other than the above is basically the same as that of the fourth embodiment.

  By providing the branch portion in the columnar portion as in the eighth embodiment, the mass distribution of the golf club head 2 can be changed, and various parameters such as the center of gravity position of the head can be adjusted. In addition, various parameters such as the center of gravity of the head can be changed in various ways by appropriately adjusting the number and extending direction of the branching parts, the mass of the weight member attached to the columnar part and the branching part, the mounting position, etc. Is possible.

Example 9
Next, Embodiment 9 of the present invention will be described with reference to FIG. 33 and FIG.

  In the ninth embodiment, a modification of the shape of the columnar portion will be described. In each of the above-described embodiments, the columnar portion has a hollow pipe shape, but a member having a substantially U-shaped cross section as shown in FIG. 33 or a substantially V-shaped cross section as shown in FIG. It is also conceivable to form the columnar portion 11 with these members. That is, the concave space 27 inside the columnar part 11 may communicate with the space around the columnar part 11. Other configurations are the same as those in the above-described embodiments.

  Although the embodiments and examples of the present invention have been described above, it is also planned from the beginning to appropriately combine the configurations of the above-described embodiments and examples. Further, the configurations in the above-described embodiments and examples are not necessarily essential. Furthermore, it should be thought that embodiment and an Example which were disclosed this time are the illustrations in all points, and are not restrictive. The scope of the present invention is defined by the terms of the claims, and includes meanings equivalent to the terms of the claims and all modifications within the scope.

1 is a perspective view of a golf club in Example 1 of the present invention. It is a perspective view which shows the head main body base part of the golf club head in Example 1 of this invention. 1 is a perspective view of a golf club head in Example 1 of the present invention. It is a partial section perspective view of a golf club head in Example 1 of the present invention. It is a partial section perspective view of the golf club head in Example 2 of the present invention. It is sectional drawing which shows an example of the mounting position of a weight member. It is sectional drawing which shows the other example of the mounting position of a weight member. It is sectional drawing which shows the further another example of the mounting position of the weight member. It is a fragmentary sectional perspective view which shows the head main body base part of the golf club head in Example 3 of this invention. It is sectional drawing which shows the example of a shape of a columnar part. It is a fragmentary sectional view showing a head main part base of a golf club head in Example 3 of the present invention. It is a side view which shows the example of a shape of a weight member. It is a top view which shows the example of a shape of a weight member. It is sectional drawing which follows the XIV-XIV line | wire of FIG. It is a front view which shows the head main body base part of the golf club head in Example 4 of this invention. It is a rear view which shows the head main body base part of the golf club head in Example 4 of this invention. It is a side view of the golf club head in Example 4 of this invention. It is sectional drawing of the golf club head in Example 4 of this invention. It is a perspective view which shows the head main body base part of the golf club head in Example 5 of this invention, and is a figure which shows the state which abbreviate | omitted the connection member. It is a front view which shows the head main body base part of the golf club head in Example 5 of this invention, and is a figure which shows the state which mounted | wore the connection member. It is a side view of the head main body base part of the golf club head in Example 5 of this invention. It is sectional drawing of the golf club head in Example 5 of this invention. It is sectional drawing which shows an example of the attachment position of the weight member at the time of providing multiple columnar parts. It is sectional drawing which shows the other example of the mounting position of the weight member at the time of providing multiple columnar parts. It is sectional drawing which shows the further another example of the mounting position of the weight member at the time of providing multiple columnar parts. It is sectional drawing which shows the further another example of the mounting position of the weight member at the time of providing multiple columnar parts. It is sectional drawing which shows the further another example of the mounting position of the weight member at the time of providing multiple columnar parts. It is a perspective view which shows the head main body base part and crown member of a golf club head in Example 6 of this invention. It is a perspective view which shows the head main body base part and crown member of a golf club head in Example 6 of this invention. It is a perspective view which shows the head main body base part and face member of a golf club head in Example 7 of this invention. It is the perspective view which looked at the head main body base part and face member of the golf club head in Example 8 of this invention from the face part side. It is the perspective view which looked at the head main body base part and face member of the golf club head in Example 8 of this invention from the back part side. It is a perspective view which shows the other example of a shape of a columnar part. It is a perspective view which shows the other example of a shape of a columnar part.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Golf club, 2 Golf club head, 3 Shaft, 4 Grip, 5 Crown part, 6 Side part, 7 Sole part, 8 Face part, 9 Face opening part, 10 Sole opening part, 11, 11a, 11b Columnar part, 12 , 12a, 12b, 14, 14a, 14b Weight member, 13 rib, 15, 16, 28 plane, 17, 18 side opening, 19a, 19b, 20a, 20b fixing portion, 21 weight position adjusting hole, 22 balls, 23 Operation recess, 24 through-hole, 25 coil spring, 26 crown opening, 27 concave space, 29 crown member, 30 face member.

Claims (11)

  1. An outer shell head body;
    A face portion (8) constituting a part of the head body;
    A crown portion (5) constituting a part of the head body;
    Constituting a part of the head body, and a sole portion (7) facing the crown portion (5);
    A side part (6) constituting a part of the head body and connecting the crown part (5) and the sole part (7);
    A columnar part (11) provided inside the head body so as to connect at least two parts separated from each other in the crown part (5), the sole part (7) and the side part (6);
    Golf club head with
  2.   The golf club head according to claim 1, wherein weight members (12, 14) are mounted on the columnar part (11).
  3. The columnar part (11) is connected to at least one of the sole part (7) and the side part (6),
    At least one surface of the sole part (7) and the side part (6) is connected to at least one of the sole part (7) and the side part (6) and the columnar part (11). Provided with openings (10, 17, 18) that open to
    The golf club head according to claim 2, wherein the weight member (12) is attached to the opening (10, 17, 18).
  4.   The golf club head according to claim 2 or 3, wherein the columnar part (11) has a position adjusting mechanism capable of adjusting a position of the weight member (14).
  5.   The golf club head according to any one of claims 1 to 4, wherein the columnar portion (11) has a branch portion.
  6. The columnar part (11) has a hollow structure,
    The golf club head according to any one of claims 2 to 5, wherein the weight member (12, 14) is mounted inside the columnar portion (11).
  7.   The golf club head according to any one of claims 1 to 6, wherein the columnar portion (11) is integrally formed with the head main body.
  8.   The columnar part (11) is composed of a material having a lower specific gravity than the head body, connecting the pair of fixed parts (19a, 19b) provided on the head body and the fixed parts (19a, 19b). The golf club head according to claim 1, further comprising a connecting member to be operated.
  9.   The head main body is mounted on the head main body base so as to close the head main body base having an opening in at least one of the face portion (8) and the crown portion (5), and the opening of the head main body base. The golf club head according to claim 1, comprising a member (29, 30).
  10.   10. The golf club head according to claim 1, wherein a space is left between the outer peripheral surface of the columnar part (11) and the head main body. 11.
  11.   A golf club comprising the golf club head according to claim 1.
JP2006093726A 2006-03-30 2006-03-30 Golf club head and golf club Withdrawn JP2007267777A (en)

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WO2009102693A1 (en) * 2008-02-14 2009-08-20 Nike, Inc. Extreme weighted hybrid and other wood-type golf clubs and golf club heads
JP2011005011A (en) * 2009-06-26 2011-01-13 Bridgestone Sports Co Ltd Golf club head
US7914393B2 (en) 2008-05-30 2011-03-29 Cobra Golf, Inc. Golf club head with sound tuning
US8007369B2 (en) 2008-12-15 2011-08-30 Cobra Golf, Inc. Golf club head with stiffening and sound tuning composite member
US20120165115A1 (en) * 2010-12-24 2012-06-28 Kiyofumi Matsunaga Golf club head
JP2013502985A (en) * 2009-08-26 2013-01-31 ナイキ インターナショナル リミテッド Wood-type golf club and golf club head having internal movable weights
JP2013521861A (en) * 2010-03-11 2013-06-13 ナイキ インターナショナル リミテッド Golf club and golf club head including structure for selectively controlling sound of club head
JP2014526940A (en) * 2011-08-23 2014-10-09 ナイキ イノベイト セー. フェー. Golf club head having air gap
US20150094166A1 (en) * 2009-01-20 2015-04-02 Nike, Inc. Golf Club and Golf Club Head Structures
US20160129323A1 (en) * 2012-11-16 2016-05-12 Callaway Golf Company Golf club head with adjustable center of gravity
US20160199706A1 (en) * 2009-01-20 2016-07-14 Nike, Inc. Golf Club and Golf Club Head Structures
US20160367871A1 (en) * 2004-02-23 2016-12-22 Taylor Made Golf Company, Inc. Golf club head with vertical center of gravity adjustment
US9687702B1 (en) 2012-06-27 2017-06-27 Callaway Golf Company Golf club head with structural columns
US9687701B1 (en) 2012-06-27 2017-06-27 Callaway Golf Company Weighted golf club head having stress-relieving tubes
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US9757630B2 (en) 2015-05-20 2017-09-12 Taylor Made Golf Company, Inc. Golf club heads
US9776058B2 (en) 2012-06-27 2017-10-03 Callaway Golf Company Golf club head having optimized ball speed to CT relationship
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US9968834B1 (en) 2012-11-16 2018-05-15 Callaway Golf Company Golf club head with adjustable center of gravity
US10065085B2 (en) 2015-06-30 2018-09-04 Callaway Golf Company Golf club head having face stress-reduction features
US10092797B2 (en) 2011-12-29 2018-10-09 Taylor Made Golf Company, Inc. Golf club head
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US20160367871A1 (en) * 2004-02-23 2016-12-22 Taylor Made Golf Company, Inc. Golf club head with vertical center of gravity adjustment
US8747252B2 (en) 2008-02-14 2014-06-10 Nike, Inc. Extreme weighted hybrid and other wood-type golf clubs and golf club heads
US7785212B2 (en) 2008-02-14 2010-08-31 Nike, Inc. Extreme weighted hybrid and other wood-type golf clubs and golf club heads
JP2011512198A (en) * 2008-02-14 2011-04-21 ナイキ インコーポレーティッド Extremely weighted hybrid and other wood type golf clubs and golf club heads
WO2009102693A1 (en) * 2008-02-14 2009-08-20 Nike, Inc. Extreme weighted hybrid and other wood-type golf clubs and golf club heads
US8167739B2 (en) 2008-02-14 2012-05-01 Nike, Inc. Extreme weighted hybrid and other wood-type golf clubs and golf club heads
EP2275178A3 (en) * 2008-02-14 2013-01-09 Nike International Ltd. Extreme weighted hybrid and other wood-type golf clubs and golf club heads
US8337326B2 (en) 2008-02-14 2012-12-25 Nike, Inc. Extreme weighted hybrid and other wood-type golf clubs and golf club heads
US7914393B2 (en) 2008-05-30 2011-03-29 Cobra Golf, Inc. Golf club head with sound tuning
US8758164B2 (en) * 2008-05-30 2014-06-24 Cobra Golf Incorporated Golf club head with sound tuning
US8540587B2 (en) 2008-05-30 2013-09-24 Cobra Golf Incorporated Golf club head with sound tuning
US8007369B2 (en) 2008-12-15 2011-08-30 Cobra Golf, Inc. Golf club head with stiffening and sound tuning composite member
US8353783B2 (en) 2008-12-15 2013-01-15 Cobra Golf Incorporated Golf club head with stiffening and sound tuning composite member
US10130854B2 (en) * 2009-01-20 2018-11-20 Karsten Manufacturing Corporation Golf club and golf club head structures
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US20180256948A1 (en) * 2009-01-20 2018-09-13 Karsten Manufacturing Corporation Golf club and golf club head structures
US20150094166A1 (en) * 2009-01-20 2015-04-02 Nike, Inc. Golf Club and Golf Club Head Structures
US10363465B2 (en) 2009-01-20 2019-07-30 Karsten Manufacturing Corporation Golf club and golf club head structures
US20160199706A1 (en) * 2009-01-20 2016-07-14 Nike, Inc. Golf Club and Golf Club Head Structures
US9795845B2 (en) * 2009-01-20 2017-10-24 Karsten Manufacturing Corporation Golf club and golf club head structures
US20180021642A1 (en) * 2009-01-20 2018-01-25 Karsten Manufacturing Corporation Golf club and golf club head structures
JP2011005011A (en) * 2009-06-26 2011-01-13 Bridgestone Sports Co Ltd Golf club head
JP2013502985A (en) * 2009-08-26 2013-01-31 ナイキ インターナショナル リミテッド Wood-type golf club and golf club head having internal movable weights
JP2013521861A (en) * 2010-03-11 2013-06-13 ナイキ インターナショナル リミテッド Golf club and golf club head including structure for selectively controlling sound of club head
US8992339B2 (en) * 2010-12-24 2015-03-31 Sri Sports Limited Golf club head
US20120165115A1 (en) * 2010-12-24 2012-06-28 Kiyofumi Matsunaga Golf club head
JP2014526940A (en) * 2011-08-23 2014-10-09 ナイキ イノベイト セー. フェー. Golf club head having air gap
US10463925B2 (en) 2011-12-29 2019-11-05 Taylor Made Golf Company, Inc. Golf club head
US10092797B2 (en) 2011-12-29 2018-10-09 Taylor Made Golf Company, Inc. Golf club head
US9782646B2 (en) 2012-06-08 2017-10-10 Callaway Golf Company Golf club head with center of gravity adjustability
US9814947B1 (en) 2012-06-27 2017-11-14 Callaway Golf Company Golf club head having composite tubes
US9889349B1 (en) 2012-06-27 2018-02-13 Callway Golf Company Golf club head having stress-reducing structures
US9776058B2 (en) 2012-06-27 2017-10-03 Callaway Golf Company Golf club head having optimized ball speed to CT relationship
US9687701B1 (en) 2012-06-27 2017-06-27 Callaway Golf Company Weighted golf club head having stress-relieving tubes
US9694257B1 (en) 2012-06-27 2017-07-04 Callaway Golf Company Golf club head with structural columns
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US9694256B2 (en) * 2012-11-16 2017-07-04 Callaway Golf Company Golf club head with adjustable center of gravity
US9968834B1 (en) 2012-11-16 2018-05-15 Callaway Golf Company Golf club head with adjustable center of gravity
US20160129323A1 (en) * 2012-11-16 2016-05-12 Callaway Golf Company Golf club head with adjustable center of gravity
US9757630B2 (en) 2015-05-20 2017-09-12 Taylor Made Golf Company, Inc. Golf club heads
US10065085B2 (en) 2015-06-30 2018-09-04 Callaway Golf Company Golf club head having face stress-reduction features
JP2017153954A (en) * 2016-02-23 2017-09-07 キャラウェイ・ゴルフ・カンパニ Golf club head with structural column
KR101965567B1 (en) * 2018-03-06 2019-04-04 주식회사 알피온 Golf club

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