KR20230067511A - Wood type golf club head - Google Patents

Abstract

The present invention is to increase strength of a connection portion between a metal and a resin member where stress is likely to concentrate during hitting. A wood type golf club head (10) according to one aspect of the present invention comprises a hollow head body (1) having: a face portion (2) having a face surface (2a); a crown portion (3) extending rearward from an upper edge of the face portion (2); and a sole portion (4) extending rearward from a lower edge of the face portion (2), wherein at least one of the crown portion (3) and the sole portion (4) has a first portion (11) made of metal with one side connected with the face portion (2) and a second portion (12) made of fiber-reinforced resin, a connection region (R) where the first portion (11) and the second portion (12) are partially polymerized and disposed is formed, and a high-rigidity portion (13) including a concavo-convex shape is formed in the connection region (R).

Description

Wood type golf club head {WOOD TYPE GOLF CLUB HEAD}

The present invention relates to a wood-type golf club head.

In order to reduce the weight of a wood-type golf club head having a hollow head body, the combined use of metal and a fiber-reinforced resin that is lighter than metal has been studied (see Japanese Patent Laid-Open No. 2013-94342).

Japanese Unexamined Patent Publication No. 2013-94342

Patent Literature 1 describes a wood-type golf club head composed of two members: a front side member including a face portion, and a rear side member disposed behind the front side member. Patent Literature 1 describes that the front member is made of metal and the rear member is made of a resin member made of fiber-reinforced resin. Patent Literature 1 describes embedding a reinforcing member in a resin member.

In the wood type golf club head described in Patent Literature 1, durability of the resin member can be enhanced while suppressing separation between the reinforcing member and the resin member by embedding the reinforcing member in the resin member.

On the other hand, when a wood-type golf club head is formed using a metal member and a fiber-reinforced resin member, stress is generated at the connection portion between the metal and the fiber-reinforced resin when the ball is hit due to the difference in strength between the metal and the fiber-reinforced resin. This makes it easier to focus. However, with the conventional configuration as described in Patent Literature 1, the strength of the connection portion between the metal and the fiber-reinforced resin cannot be increased.

The present invention has been made based on such a situation, and an object of the present invention is to increase the strength of a connection portion between a metal and a resin member where stress tends to concentrate at the time of impact.

A wood-type golf club head according to one aspect of the present invention is hollow, having a face portion having a face surface, a crown portion extending rearwardly from an upper edge of the face portion, and a sole portion extending rearwardly from a lower edge of the face portion. A head body is provided, wherein at least one of the crown portion and the sole portion has a metal first portion continuous to the face portion and a fiber-reinforced resin second portion, the first portion and the second portion A connection region partially overlapped and arranged is formed, and a high-rigidity portion including a concavo-convex shape is formed in the connection region.

The high-rigidity portion may be disposed along the periphery of the face portion.

The distance between the high rigidity portion and the peripheral portion of the face surface facing the high rigidity portion in the forward and backward direction is preferably 5 mm or more and 15 mm or less.

It is good if the said high rigidity part is formed in the said crown part.

It is preferable that the connection region is elongated, and that the high-rigidity portion has a plurality of recesses or projections arranged at intervals along the longitudinal direction of the connection region as the concave-convex shape.

The high-rigidity portion may be integrally formed with the first portion.

An opening may be formed in the first portion, and the second portion may be arranged in the opening.

It is good if the said fiber reinforced resin is a carbon fiber reinforced resin.

Further, in the present invention, "front" means the side that hits the golf ball, and "rear" means the opposite side. The "front-rear direction" means the front-back direction (direction perpendicular to the vertical plane including the central axis of the shaft) in a state in which the head body is arranged on a horizontal plane so as to have predetermined lie angles and loft angles set in advance. The "circumferential portion facing the high rigidity portion of the face surface in the front-back direction" means a portion facing the high-stiffness portion in the front-back direction in the peripheral portion of the face surface located on the same side as the high rigidity portion. Therefore, the "circumferential edge facing the high rigidity part of the face surface in the front-back direction" is located at the upper edge of the face surface, for example, when the high rigidity part is formed in the crown part, and the high rigidity part is formed in the sole part. If present, it is located at the lower edge of the face surface.

(Effects of the Invention)

A wood-type golf club head according to one aspect of the present invention is a high strength including concavo-convex shape in a long connection region in which the first part made of metal and the second part made of fiber-reinforced resin are partially overlapped and arranged. Since the forearm is formed, the strength of the connection portion between the first portion and the second portion, where stress is easily concentrated during hitting, can be increased.

1 is a schematic front view of a wood-type golf club head according to an embodiment of the present invention.
Fig. 2 is a schematic plan view of the wood-shaped golf club head of Fig. 1;
FIG. 3 is a schematic perspective view showing a state in which the opening of the wood-type golf club head of FIG. 1 is opened.
Fig. 4 is a schematic plan view of the wood-type golf club head of Fig. 3;
FIG. 5 is a schematic diagram of a connection area in the wood-type golf club head of FIG. 1 viewed from inside the head body.
FIG. 6 is a cross-sectional view of the connection area of FIG. 5 taken along line VI-VI.
Fig. 7 is a schematic cross-sectional view corresponding to Fig. 6 showing a modified example of the connection region in Fig. 5;
Fig. 8 is a schematic diagram corresponding to Fig. 5 showing a modified example of the connection area of Figs. 5 and 7;
Fig. 9 is a schematic plan view showing a wood-type golf club head according to an embodiment different from the wood-type golf club head of Fig. 1;
Fig. 10 is a schematic bottom view showing a wood-type golf club head according to an embodiment different from the wood-type golf club head of Figs. 1 and 9;

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail, referring drawings suitably. In addition, about the numerical value described in this specification, it is possible to adopt only one of the upper limit value and the lower limit value described, or to combine the upper limit value and the lower limit value arbitrarily.

[First Embodiment]

<Wood type golf club head>

The wood-type golf club head 10 of FIGS. 1 to 4 has a hollow head body 1, and more specifically, is made of the head body 1. The head body 1 includes a face portion 2 having a face surface 2a, a crown portion 3 extending rearwardly from the upper edge of the face portion 2, and a rearward portion extending from the lower edge of the face portion 2. It has a sole part 4 extending to. In addition, the head body 1 has a side portion 5 extending rearward from the side edge of the toe side and the side edge of the heel side of the face portion 2 and disposed between the crown portion 3 and the sole portion 4, It has a shaft attachment portion 6 to which a shaft is attached. The face surface 2a constitutes the front surface of the face portion 2 . The face surface 2a constitutes the striking surface of the wood-shaped golf club head 10. The wood-type golf club head 10 is used as, for example, a driver, utility, or fairway wood. Among them, the wood-type golf club head 10 is preferably used as a driver.

(Crown part)

The crown portion 3 has a first portion 11 made of metal continuing to the face portion 2 and a second portion 12 made of fiber-reinforced resin. A connection region R is formed in the crown portion 3 in which the first portion 11 and the second portion 12 are partially overlapped and disposed. That is, the crown portion 3 has a single-layer region composed of the first portion 11 and a single-layer region composed of the second portion 12, and a connection region R is formed at the boundary between the two regions. there is. The connection region R is elongated, for example. In the connection area R, the first part 11 and the second part 12 are fixed to each other. The connection region R extends along the side edges of the first portion 11 and the second portion 12 in a strip shape. The connection region R may be formed in an endless shape (annular shape) as a whole. The width of the connection region R may be constant along the longitudinal direction or may vary. In the connection region R, a high-rigidity portion 13 having a concavo-convex shape is formed.

[Part 1]

As described above, the first portion 11 is made of metal. The first portion 11 may be formed integrally with the face portion 2 with the same material as the face portion 2, or may be formed separately from the face portion 2. Also, the first portion 11 may be integrally formed with the side portion 5, the sole portion 4, and the like with the same material as the side portion 5 or the sole portion 4. Examples of the metal constituting the first portion 11 include titanium, stainless steel, maraging steel, aluminum, and magnesium. In addition, in this invention, "metal" is a concept containing an alloy.

As shown in FIGS. 3 and 4 , an opening 11a for arranging the second portion 12 is formed in the first portion 11 . At the circumferential edge of the opening 11a, a connecting portion 11b is formed so as to support the second portion 12 and is arranged with a step difference with respect to adjacent portions. The connecting portion 11b is recessed inward with respect to adjacent portions. The connection part 11b is an annular shape, for example. The thickness of the connecting portion 11b may be smaller than the thickness of adjacent portions. The connecting portion 11b functions as a passage to be bonded to the second portion 12 . In the wood-shaped golf club head 10, a connecting portion 11b and a portion disposed overlapping with the connecting portion 11b in the second part 12 constitute a connecting region R. In the present invention, "an opening is formed in the first portion" includes a configuration in which the entire opening is included in the first portion, as well as a configuration in which a part of the opening is disposed in the first portion. In the wood-shaped golf club head 10, the opening 11a may be formed in a region extending beyond the crown portion 3 to the side portion 5 or the sole portion 4. In this case, a part of the opening 11a is disposed in the crown part 3.

[Part 2]

The second portion 12 contributes to weight reduction of the head body 1 by constituting a part of the head body 1 . The second part 12 is plate-shaped, for example, and is curved according to the outline of the head main body 1 . The second part 12 is disposed in the opening 11a. The periphery of the second portion 12 overlaps with the outer surface of the connecting portion 11b of the first portion 11 and is disposed. The periphery of the second portion 12 and the connecting portion 11b of the first portion 11 are directly fixed with, for example, an adhesive. The second portion 12 is a cover body that closes the opening 11a. The wood-type golf club head 10 has an opening 11a formed in the first part 11, and the second part 12 is disposed in the opening 11a, thereby reducing the weight of the head body 1 can be easily accomplished.

As described above, the second portion 12 is made of fiber-reinforced resin. The fiber-reinforced resin has a resin matrix and fibers dispersed in the resin matrix. As said fiber, carbon fiber, glass fiber, etc. are mentioned, for example. When the fiber is a carbon fiber, the fiber-reinforced resin is configured as a carbon fiber-reinforced resin (CFRP). When the fiber is a glass fiber, the fiber reinforced resin is configured as a glass fiber reinforced resin (GFRP). As the fiber-reinforced resin, CFRP is preferable. Since the fiber-reinforced resin is CFRP, it is easy to achieve weight reduction while suppressing a decrease in strength. Examples of the main component of the resin matrix include thermosetting resins such as epoxy resins and unsaturated polyesters, and thermoplastic resins such as polyolefins and polyamides. In addition, in this specification, a "main component" means the component with the largest content in terms of mass, and means the component whose content is 50 mass % or more, for example.

[connection area]

The connection region R extends along the circumferential edge of the face portion 2 . More specifically, the connection region R extends parallel to the circumferential edge of the face portion 2 at the rear of the face portion 2 . In general, when the connection area R extends along the circumferential edge of the face portion 2 in this way, the bending generated from the face portion 2 when the ball is hit is transmitted to the connection area R, thereby reducing the connection area ( R) and the second portion 12 formed continuously to the connection region R are easily deformed. This makes it impossible to intensively bend the face portion 2 at the time of hitting the ball, making it difficult to increase the initial velocity of the batted ball, and as a result, it is difficult to sufficiently increase the flight distance of the batted ball. This problem becomes more remarkable as the second portion 12 is disposed closer to the face portion 2 in order to reduce the weight of the head body 1. In addition, if the second portion 12 is disposed close to the face portion 2, stress tends to be concentrated in the connection region R when the ball is hit. In the wood-type golf club head 10, a high rigidity part 13 is formed along the circumferential edge of the face part 2 so as to simultaneously solve these two problems.

In the wood-type golf club head 10, the connection area R extends along the circumferential edge of the face portion 2, and the high rigidity portion 13 is disposed in the connection area R, so that the connection area ( The strength of R) can be easily increased, and the flight distance of the batted ball can be increased by intensively bending the face portion 2 when the ball is hit. In other words, in the wood-type golf club head 10, the high-rigidity portion 13 contributes to both reducing the weight of the head body 1 and increasing the flight distance of the batted ball. In the wood-type golf club head 10, the first part 11, the second part 12, and the high rigidity part 13 overlap and extend along the circumferential edge of the face part 2, so that the ball is hit. It is easy to properly bend the face part 2 at the time of application. Hereinafter, the high-rigidity portion 13 will be described in detail.

[High Rigidity Part]

The high rigidity part 13 increases the rigidity of the connection region R. The high rigidity part 13 should just be arrange|positioned at least partially in the connection region R, and a part of the high rigidity part 13 may be formed outside the connection region R. However, it is preferable that the entirety of the high-rigidity portion 13 is included in the connection region R.

The high rigidity part 13 is formed on the crown part 3. The wood-type golf club head 10 has a second part 12, which is lighter than the first part 11, disposed on the crown part 3, in addition to reducing the weight of the head body 1, the head body 1 ), it is possible to achieve low center of gravity. At this time, since the high-rigidity portion 13 is formed in the connection region R, the deflection of the upper edge side of the head body 1 at the time of hitting the ball can be concentrated on the face portion 2, and the head body 1 ) can be reduced. As a result, it is easy to improve the flight distance of the batted ball.

The high rigidity portion 13 extends along the upper edge of the face portion 2 . The lower limit of the ratio (L2/L1) of the length L2 of the high rigidity portion 13 in the toe heel direction to the length L1 of the face surface 2a in the toe heel direction is preferably 0.5 and more preferably 0.7. If the ratio (L2/L1) does not satisfy the lower limit, it may become difficult to intensively deflect the face portion 2 when the ball is hit.

As shown in FIGS. 3 and 4 , the high rigidity portion 13 is formed in the first portion 11 . The high-rigidity portion 13 is formed on the surface of the first portion 11 opposite to the side connected to the second portion 12 . Specifically, the high-rigidity portion 13 is formed on the inner surface of the connecting portion 11b. The surface (outer surface) of the side connected to the second portion 12 of the connecting portion 11b can be made flat.

It is preferable that the high-rigidity portion 13 is integrally formed with the first portion 11 . That is, it is preferable that the high-rigidity portion 13 is formed integrally with the first portion 11 with the same material as the first portion 11 . According to this configuration, peeling of the high-rigidity portion 13 from the first portion 11 can be easily and reliably suppressed. Further, by configuring the high-rigidity portion 13 with the same metal as the first portion 11, the strength of the connection region R can be easily and reliably increased. The high rigidity portion 13 can be formed simultaneously with the first portion 11 using, for example, a mold having an inverted shape of the high rigidity portion 13 .

As described above, the high rigidity portion 13 includes a concavo-convex shape. The "concave-convex shape" refers to a shape in which a height difference is formed on the surface by regularly or irregularly arranging one or both of the protrusion and the concave portion. The high-rigidity portion 13 has a plurality of unit structures arranged at intervals from each other in the concavo-convex shape. As shown in FIGS. 3 to 6 , for example, the high-rigidity portion 13 includes a plurality of concave portions 21 disposed at intervals along the longitudinal direction of the connection region R as the concavo-convex shape (unit structure). I have it. In FIGS. 3 to 6 , all of the concave-convex shapes constituting the high-rigidity portion 13 are constituted by the concave portion 21 . The plurality of concave portions 21 are arranged in a row along the longitudinal direction of the connection region R and at intervals in the toe heel direction. In addition, the "toe heel direction" means a horizontal direction orthogonal to the front-back direction in a state in which the head body is arranged on a horizontal surface so as to have predetermined lie angles and loft angles set in advance.

As shown in FIGS. 5 and 6 , the concave portion 21 extends in the front-back direction and has a pair of side surfaces 21a facing each other. A pair of side surfaces 21a are each flat. In general, since the impact at the time of hitting the ball is transmitted from the front to the rear, the connection region R tends to be curved in the front-back direction. In this regard, in the wood-type golf club head 10, since the concave portion 21 has a pair of side surfaces 21a, the curvature of the connection region R in the front-rear direction can be easily suppressed. In addition, the side surface "extended in the front-rear direction" means that the inclination angle of the side surface in the toe heel direction with respect to the front-back direction is 5 ° or less, preferably 3 ° or less, more preferably 1 ° or less.

The concave portion 21 has a front surface 21b connecting the front ends (front edges) of the pair of side surfaces 21a and a rear surface connecting the rear ends (rear edges) of the pair of side surfaces 21a ( 21c). Further, the concave portion 21 has a front surface 21b, a rear surface 21c, and a bottom surface 21d connecting the bottom edges of the pair of side surfaces 21a to each other. Since the concave portion 21 has a bottom surface 21d, deformation of the connection region R in the front-rear direction and the toe-heel direction is easily suppressed together.

The front face 21b, the rear face 21c, and the bottom face 21d are all flat. The bottom face 21d has a rectangular shape, and preferably has a rectangular shape with the front-back direction as the longitudinal direction and the toe-heel direction as the width direction. The number of concave parts 21 in the high-rigidity part 13 while being able to easily suppress the curvature of the connection area|region R in the front-back direction because the bottom face 21d has a rectangular shape with the front-back direction being the longitudinal direction. can do a lot of In addition, the "rectangular shape" is not limited to a perfect rectangle, and includes, for example, a shape in which a rectangular corner is chamfered.

As a lower limit of the longitudinal direction length L3 of the recessed part 21, 3 mm is preferable and 4 mm is more preferable. On the other hand, as an upper limit of length L3 of the front-back direction of the recessed part 21, 10 mm is preferable and 8 mm is more preferable. If the longitudinal length L3 does not satisfy the lower limit, there is a possibility that the strength of the connection region R cannot be sufficiently increased. Conversely, if the length L3 in the longitudinal direction exceeds the upper limit, there is a concern that the front-back curvature suppression function of the connection area R will not be improved so much, and the concave portion 21 cannot be disposed within the connection area R. There is a possibility that the strength of the connection region R cannot be accurately improved.

The plurality of concave portions 21 constituting the high rigidity portion 13 may all have the same shape. Moreover, it is preferable that the pitch of adjacent recessed part 21 comrades is the same. According to this configuration, it is possible to suppress the formation of a partially deformable region in the connection region R. As a result, it is easy to increase the flight distance of the batted ball while appropriately increasing the strength of the connection region R.

[Modified example of high rigidity part]

Modifications of the high rigidity portion 13 of FIGS. 3 to 6 will be described with reference to FIGS. 7 and 8 .

[Modification 1]

The high-rigidity portion 23 of FIG. 7 has a plurality of unit structures arranged at intervals from each other in the concavo-convex shape. The high-rigidity portion 23 has a plurality of protrusions 31 arranged at intervals along the longitudinal direction of the connection region R as the concavo-convex shape (unit structure). That is, protrusions 31 are disposed on the high-rigidity portion 23 instead of the concave portion 21 shown in FIGS. 3 to 6 as the concavo-convex shape. The plurality of protrusions 31 are arranged in a row along the longitudinal direction of the connection region R and at intervals in the toe heel direction.

The protrusion 31 can be made into an inverted shape of the concave part 21 of FIGS. 3-6, for example. In this case, the protrusion 31 extends in the front-back direction and includes a pair of side surfaces 31a facing each other, a front surface connecting the front ends (front edges) of the pair of side surfaces 31a, and a pair of side surfaces 31a. It has a rear surface that connects the rear ends (rear edges) of the side surfaces 31a, a front surface, a rear surface, and a top surface 31d that connects the front edges of the pair of side surfaces 31a. The protrusion 31 can easily suppress the curvature of the connection region R in the front-rear direction by having a pair of side surfaces 31a. The ceiling surface 31d has a rectangular shape, and preferably has a rectangular shape with the front-back direction as the longitudinal direction and the toe-heel direction as the width direction. The longitudinal length of the protrusion 31 may be equal to the longitudinal length L3 of the concave portion 21 . All of the plurality of protrusions 31 constituting the high rigidity portion 23 may have the same shape. In addition, it is preferable that the pitch of adjacent protrusions 31 is the same.

[Modification 2]

The high-rigidity portion 33 of FIG. 8 has a plurality of concave portions 41a, 41b, and 41c arranged at intervals in the longitudinal direction of the connection region R as the concavo-convex shape. The concave portions 41a, 41b, and 41c have side surfaces 42a, 42b, and 42c extending obliquely in the toe heel direction with respect to the fore-and-aft direction. According to this configuration, it is easy to give one side surface 42a, 42b, 42c a function to suppress curvature in both the front-back direction and the toe-heel direction. As a result, it is easy to suppress the deformation of the connection region R when the ball is not hit or the like.

In the wood-type golf club head 10, the high-rigidity parts 13, 23, and 33 have a plurality of concave portions or protrusions disposed at intervals along the longitudinal direction of the connection area R as the concavo-convex shape, so that the connection area The strength of (R) can be easily increased. In addition, since the high-rigidity parts 13, 23, and 33 are disposed along the circumferential edge of the face part 2, the forward-backward curvature of the connection region R can be easily suppressed and the flight distance of the batted ball can be increased.

As described above, the wood-type golf club head 10 increases the area of the second part 12 by arranging the high-rigidity parts 13, 23, and 33 close to the face part 2, thereby promoting weight reduction and hitting the ball. can increase the distance of As the lower limit of the distance D in the front-back direction of the high-rigidity parts 13, 23, 33 and the circumference facing the high-rigidity parts 13, 23, 33 of the face surface 2a in the front-back direction (see Fig. 4), 5 mm is preferable and 8 mm is more preferable. On the other hand, as an upper limit of the said space|interval D, 15 mm is preferable and 12 mm is more preferable. If the distance D does not satisfy the lower limit, there is a possibility that the formation of the head body 1 becomes difficult. Conversely, if the interval D exceeds the upper limit, the effect of intensively bending the face portion 2 at the time of hitting the ball may not be sufficiently exhibited.

<Advantages>

The wood-type golf club head 10 has a concavo-convex shape in a long connection region R in which a first part 11 made of metal and a second part 12 made of fiber-reinforced resin are partially overlapped and arranged. Since the high-stiffness portion 13 including the is formed, the strength of the connection portion between the first portion 11 and the second portion 12, where stress is easily concentrated during impact, can be increased.

[Other embodiments]

The above embodiment does not limit the configuration of the present invention. Therefore, omission, substitution, or addition of components of each part of the embodiment is possible based on the description and common sense of the present specification, and they should all be construed as belonging to the scope of the present invention.

The high rigidity portion may not be arranged along the circumferential edge of the face portion. The high-stiffness portion can be formed in an arbitrary region in which the first portion and the second portion are partially overlapped, thereby increasing the strength of the region.

As shown in FIG. 9 , the wood type golf club head 50 may have a high rigidity portion 53 formed in the second portion 52 . In this case, the high rigidity portion 53 is preferably formed integrally with the second portion 52 with the same material as the second portion 52 . In addition, the wood-type golf club head may adopt a structure in which the second part overlaps with the inside of the first part.

As shown in FIG. 10, in the wood-type golf club head 60, a metal first portion 63 continuing to the face portion 62 and a fiber-reinforced resin second portion 64 are formed on the sole portion 65. may be formed in In the wood-type golf club head 60, a connection area in which a first part 63 and a second part 64 are partially overlapped and disposed is formed in the sole part 65, and the connection area has a concave-convex shape. A high-rigidity portion 66 may be formed. In the wood-type golf club head, even when the high rigidity part 66 is disposed on the sole part 65, the strength of the connection portion between the first part 63 and the second part 64 can be increased.

In the above embodiment, the configuration in which the second portion is a cover chain has been described. However, the said 2nd part does not have to be comprised as a cover body. The wood-shaped golf club head may be formed such that the first portion constitutes a front side portion of the head body and the second portion constitutes a rear portion of the head body. Further, the wood-shaped golf club head may have parts other than the first part and the second part.

The concavo-convex shape constituting the high-rigidity portion is not limited to the shape described in the above embodiment. For example, the concavo-convex shape may include both concave portions and projections. Further, the high rigidity portion may be formed in both the first portion and the second portion.

As described above, the wood-type golf club head according to one aspect of the present invention can increase the strength of the connection area between the first part and the second part where stress is easily concentrated during hitting, so it is suitable for increasing the strength of the head body. .

1: head body 2, 62: face part
2a: face surface 3: crown portion
4, 65: sole part 5: side part
6: shaft attachment
10, 50, 60: Wood type golf club head 11, 63: First part
11a: opening 11b: connection part
12, 52, 64: second part 13, 23, 33, 53, 66: high rigidity part
21, 41a, 41b, 41c: concave portion 21a, 31a, 42a, 42b, 42c: side
21b: front face 21c: rear face
21d: bottom surface 31: protrusion
31d: ceiling surface R: connection area
D: Spacing in the front-back direction between the high rigidity part and the part close to the high rigidity part of the face surface
L1: Length of the toe heel direction on the face side
L2: Length of the high rigidity part in the toe heel direction L3: Length of the concave part in the front and rear direction

Claims (8)

A hollow head body having a face portion having a face surface, a crown portion extending rearwardly from an upper edge of the face portion, and a sole portion extending rearwardly from a lower edge of the face portion;
At least one of the crown portion and the sole portion has a first portion made of metal continuing to the face portion and a second portion made of fiber-reinforced resin,
A connection region in which the first part and the second part are partially overlapped and disposed is formed;
A wood-type golf club head in which a high-rigidity portion having a concave-convex shape is formed in the connection region. According to claim 1,
A wood-type golf club head in which the high rigidity portion is disposed along the circumferential edge of the face portion. According to claim 2,
The wood-type golf club head of claim 1 , wherein a distance between the high-stiffness portion and the circumference of the face surface facing the high-stiffness portion in the front-back direction is 5 mm or more and 15 mm or less. According to any one of claims 1 to 3,
A wood-type golf club head in which the high-rigidity portion is formed in the crown portion. According to any one of claims 1 to 3,
The connection area is elongated,
The wood-type golf club head of claim 1 , wherein the high-rigidity portion has a plurality of concave portions or protrusions arranged at intervals along the longitudinal direction of the connection region as the concavo-convex shape. According to any one of claims 1 to 3,
A wood-type golf club head wherein the high-rigidity portion is integrally formed with the first portion. According to any one of claims 1 to 3,
A wood-type golf club head wherein an opening is formed in the first portion and the second portion is disposed in the opening. According to any one of claims 1 to 3,
A wood-type golf club head wherein the fiber-reinforced resin is a carbon fiber-reinforced resin.

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