Golf Club Head

Abstract

To provide a golf club head of a wood type which can increase both a carry and a directional property of a shot ball.SOLUTION: A golf club head 10 according to one embodiment of the invention includes a hollow head body 1 and a neck part 2. A distance between a center G of gravity of the entire golf club head and a projection point P obtained by projecting the center G of gravity on a front surface of a face part 11 is 25 mm or less. A ratio of a height of the projection point P to a height of the entire face part is 0.4 or more and 0.5 or less. When the golf club head 10 is placed on a horizontal plane to be at a prescribed lie angle and a prescribed loft angle, a ratio of weight of a portion positioned 15 mm or more below a face center C and 30 mm or more toward a toe side relative to the weight of the entire golf club head is 0.2 or more, and a ratio of weight of a portion positioned 30 mm or more above the face center C and 30 mm or more toward a heel side relative to the weight of the entire golf club head is 0.2 or more.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a golf club head. [Background technology]

[0002] It is desirable for a wooden golf club head having a hollow head body to be lightweight and capable of hitting a ball a long distance, and at the same time, it is desirable for this golf club head to have high ball directional control.

[0003] In order to increase the flight distance of a ball, it is effective to achieve a low spin rate on the ball. From this perspective, it is required for a wood-type golf club head to lower the position of the projection point of the center of gravity of the entire head projected onto the front surface of the face. In order to lower the position of this projection point, it is effective to shift the center of gravity of the golf club head forward (hereinafter, shifting the center of gravity of the golf club head forward is also referred to as "making the center of gravity shallow").

[0004] Conventionally, a technique for shallowing the center of gravity of a golf club head involves providing a thick portion at the front of the inner surface of a sole portion (see JP 2016-93335 A). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2016-93335 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, when the technology described in Patent Document 1 is used to shallow the center of gravity of a golf club head, the weight of the golf club head is concentrated in the front of the sole portion, which reduces the lateral moment of inertia of the golf club head and reduces the directionality of the hit ball.

[0007] Thus, in today's wood-type golf club heads, there is a trade-off between a shallow center of gravity and the lateral moment of inertia.

[0008] The present invention has been made in light of the above circumstances, and an object of the present invention is to provide a wood-type golf club head that can increase both the flight distance and directionality of a hit ball. [Means for solving the problem]

[0009] A golf club head according to one embodiment of the present invention is a wood-type golf club head comprising a hollow head body having a face portion and a sole portion, and a neck portion into which a shaft is inserted, wherein the distance between the center of gravity of the entire golf club head and a projection point of this center of gravity projected onto the front surface of the face portion is 25 mm or less, the ratio of the height of the projection point to the height of the entire face portion is 0.4 to 0.5, and when the golf club head is placed on a horizontal plane to have a predetermined lie angle and loft angle, the ratio of the weight of a portion 15 mm or more below the face center and 30 mm or more on the toe side to the weight of the entire golf club head is 0.2 or more, and the ratio of the weight of a portion 30 mm or more above the face center and 30 mm or more on the heel side to the weight of the entire golf club head is 0.2 or more.

[0010] The golf club head has a lateral moment of inertia of 2500 g cm 2 It would be good if that were the case.

[0011] It is preferable that the weight of the entire golf club head is 210 g or less.

[0012] The head body may include a first weight portion protruding from the sole portion toward a toe side.

[0013] The first weight portion may have a lower surface extending parallel to the horizontal plane.

[0014] The neck portion may include a neck body connected to the head body, and a second weight portion extending upward from the neck body.

[0015] In the present invention, "front" means the side to be hit, and "rear" means the opposite side. "Face center" means the vertical center position of the face surface (front surface of the face part) at the center position of the face surface in the toe-heel direction. "Toe-heel direction" means the horizontal direction perpendicular to the front-rear direction in a state where the golf club head is placed on a horizontal surface so as to have a preset lie angle and loft angle (the lie angle and loft angle specific to the golf club head). "Horizontal moment of inertia" means the moment of inertia about the vertical axis passing through the center of gravity of the golf club head in a state where the golf club head is placed on a horizontal surface so as to have a preset lie angle and loft angle. "Parallel to the horizontal plane" means that the angle with the horizontal plane is 10° or less. This angle is preferably 5° or less, more preferably 3° or less. Effect of the Invention

[0016] In the golf club head according to one embodiment of the present invention, the distance between the center of gravity of the entire golf club head and the projection point of the center of gravity projected onto the front surface of the face portion is 25 mm or less, and the center of gravity is thoroughly shallowed. By making the center of gravity shallow, the golf club head controls the ratio of the height of the projection point to the height of the entire face portion to 0.4 or more and 0.5 or less. As a result, the golf club head can increase the flight distance of the ball. Furthermore, after making the center of gravity shallow, the golf club head controls the ratio of the weight of the toe side 15 mm or more below the face center and 30 mm or more below the face center to 0.2 or more, and the ratio of the weight of the heel side 30 mm or more above the face center to 0.2 or more, to the weight of the entire golf club head. As a result, the golf club head can increase the directional ability of the ball by increasing the lateral moment of inertia. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a schematic front view showing a golf club head according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic side view of the golf club head of FIG. 1 as viewed from the toe side. [Diagram 3] FIG. 3 is a schematic plan view of the golf club head of FIG. [Figure 4] FIG. 4 is a schematic cross-sectional view of the golf club head of FIG. 1 cut along a plane perpendicular to the front-rear direction. [Diagram 5] FIG. 5 is a schematic side view corresponding to FIG. 2 of a golf club head according to an embodiment different from the golf club head of FIG. [Figure 6] FIG. 6 is a schematic perspective view showing a golf club head according to an embodiment different from the golf club heads in FIGS. 1 and 5. In FIG. [Figure 7] FIG. 7 is a partial cross-sectional perspective view, seen from the rear side, of a golf club head according to an embodiment different from the golf club heads in FIGS. 1, 5 and 6. FIG. [Figure 8] FIG. 8 is a cross-sectional perspective view of a conventional golf club head as viewed from the rear side. [Figure 9] FIG. 9 is a cross-sectional perspective view of a golf club head according to an embodiment different from that shown in FIGS. 1 and 5 to 7, as viewed from the rear side. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] The inventor has been studying how to achieve both a shallow center of gravity and a high moment of inertia for a wood-type golf club head having a hollow head body. In the process, the inventor has attempted to thoroughly shallow the center of gravity for a driver golf club head having a loft angle of 15° or less by lowering the position of the projection point of the center of gravity of the entire head onto the front surface of the face.

[0019] The inventor first arranged weight 130 in front of the inner surface of sole portion 120 to achieve a shallow center of gravity, as shown in FIG. 8. The distance between the center of gravity of the entire golf club head and the projection point of this center of gravity onto the front surface of face portion 110 is 25 mm or less. In addition, the weight of the entire golf club head 100 is set to 210 g or less (more specifically, 199.7 g) in order to reduce the weight. However, with this golf club head 100, the weight is concentrated in the front of sole portion 120 due to the thorough shallow weighting, and as a result, the lateral moment of inertia is 2309 g cm 2 It was nothing more than that.

[0020] From the results of this study, the inventors have come to the knowledge that in order to achieve both a shallower center of gravity and a high moment of inertia in a golf club head, the weight distribution when attempting to shallow the center of gravity should be reconsidered.

[0021] Based on this finding, the inventor has completed the present invention by intentionally distributing the weight between a portion 240 on the toe side of the sole portion 220 and a neck portion 250 into which the shaft is inserted, as shown in FIG. 9. In the golf club head 200 of FIG. 9, the distance between the center of gravity of the entire golf club head and the projection point of the center of gravity projected onto the front surface of the face portion 210 is 25 mm or less (more specifically, 20 mm). In addition, in the golf club head 200, the ratio of the height of the projection point to the height of the entire face portion is 0.445, and in a state in which the golf club head is placed on a horizontal plane to achieve a predetermined lie angle and loft angle, the ratio of the weight of the part 15 mm or more below the face center and 30 mm or more on the toe side to the weight of the entire golf club head is 0.32, and the ratio of the weight of the part 30 mm or more above the face center and 30 mm or more on the heel side to the weight of the entire golf club head is 0.23. In the golf club head 200, the lateral moment of inertia is 3634 g·cm 2 and the total weight is 200.7g.

[0022] Hereinafter, the embodiment of the present invention will be described in detail. It should be noted that the numerical values ​​described in this specification can be arbitrarily combined with the upper limit value and the lower limit value. In this specification, all numerical ranges from the upper limit value to the lower limit value that can be combined are described as suitable ranges.

[0023] [First embodiment] <Golf club head> The golf club head 10 in Fig. 1 is a wood-type golf club head. The golf club head 10 includes a hollow head body 1 having a face portion 11 and a sole portion 12, and a neck portion 2 into which a shaft (not shown) is inserted. The sole portion 12 extends rearward from the lower edge of the face portion 11. The head body 1 also includes a crown portion 13 extending rearward from the upper edge of the face portion 11, and a first weight portion 14 protruding from the sole portion 12 toward the toe side. The front surface of the face portion 11 forms the striking surface of the golf club head 10 (hereinafter, the front surface of the face portion will also be referred to as the "face surface 11a").

[0024] As shown in FIG. 2, the golf club head 10 has a distance of 25 mm or less between the center of gravity G of the entire golf club head and a projection point P (a projection point of the center of gravity G projected in the normal direction of the face surface 11a) where the center of gravity G is projected onto the face surface 11a. The golf club head 10 has a shallow center of gravity by setting the distance between the center of gravity G and the projection point P to 25 mm or less. The upper limit of the distance between the center of gravity G and the projection point P may be 23 mm. The lower limit of the distance between the center of gravity G and the projection point P is not particularly limited, but may be, for example, 15 mm from the viewpoint of facilitating the weight distribution of the entire golf club head.

[0025] In the golf club head 10, the ratio (H1 / H) of the height H1 of the projection point P to the height H of the entire face portion 11 is 0.4 or more and 0.5 or less. The upper limit of the ratio (H1 / H) is preferably 0.45. In the golf club head 10, the projection point P is controlled to be at a low position by making the center of gravity shallow as described above. If the ratio (H1 / H) is outside the range, it may be difficult to achieve a low spin on the hit ball, and it may be difficult to sufficiently increase the flight distance of the hit ball. Note that the "ratio (H1 / H) of the height H1 of the projection point P to the height H of the entire face portion 11" refers to the ratio (H1 / H) measured in a projected image of the face portion 11 projected on a plane perpendicular to a virtual line passing through the center of gravity G and the projection point P. Also, the "height of the entire face portion" refers to the height of the entire face portion at a position corresponding to the projection point in the projected image.

[0026] When the golf club head 10 is placed on a horizontal plane to have a predetermined lie angle and loft angle, the ratio of the weight of the part 15 mm or more below the face center C and 30 mm or more to the toe side (first region R1 in FIG. 1) to the weight of the entire golf club head is 0.2 or more. The lower limit of the weight ratio is preferably 0.25. On the other hand, the upper limit of the weight ratio is preferably 0.4 from the viewpoint of appropriately controlling the weight distribution of the entire golf club head. Furthermore, when the golf club head 10 is placed on a horizontal plane to have a predetermined lie angle and loft angle, the ratio of the weight of the part 30 mm or more above the face center C and 30 mm or more to the heel side (second region R2 in FIG. 1) to the weight of the entire golf club head is 0.2 or more. The lower limit of the weight ratio is preferably 0.23. On the other hand, the upper limit of the weight ratio is preferably 0.3 from the viewpoint of appropriately controlling the weight distribution of the entire golf club head. The golf club head 10 achieves the aforementioned shallow center of gravity, and by distributing the weight of the entire golf club head primarily to the portion closer to the toe than the sole portion 12 and to the neck portion 2, it is possible to achieve both low spin on the ball and improved lateral moment of inertia.

[0027] The loft angle of the golf club head 10 is not particularly limited, but the upper limit can be, for example, 15°. The golf club head 10 is suitable for improving the low spin rate and directionality of a hit ball for a driver golf club head having a loft angle of 15° or less.

[0028] The lower limit of the lateral moment of inertia of the golf club head 10 is 2500 g cm 2 is preferred, 2700 g cm 2 is more preferable, 3000 g cm 2 is more preferable, 3200 g cm 2 If the lateral moment of inertia is less than the lower limit, the directionality of the hit ball may not be improved sufficiently. The upper limit of the lateral moment of inertia is not particularly limited, but is set to 6000 g cm due to restrictions imposed by rules, etc. 2 It can be said that:

[0029] The upper limit of the weight of the entire golf club head 10 is preferably 210g, more preferably 205g, and even more preferably 200g. The golf club head 10 can achieve a shallow center of gravity and a high lateral moment of inertia while keeping the entire weight low. If the weight of the entire golf club head 10 exceeds the upper limit, it may be difficult to swing a golf club equipped with the golf club head 10 on a desired trajectory. On the other hand, the lower limit of the weight is not particularly limited and may be, for example, 170g.

[0030] (Head body) [1st weight part] As described above, the head body 1 has the first weight portion 14 protruding from the sole portion 12 toward the toe side. The first weight portion 14 is provided at a position that is at least partially included in the first region R1. The first weight portion 14 may be provided integrally with the sole portion 12, or may be provided separately from the sole portion 12. The golf club head 10 has the first weight portion 14, which makes it easier to increase the lateral moment of inertia.

[0031] As shown in Fig. 3, the first weight portion 14 is preferably provided at a position that does not affect the maximum width of the head body 1 in the toe-heel direction. To explain in more detail, the head body 1 has a side portion 15 connected to the toe-side edge of the crown portion 13. The first weight portion 14 is preferably provided below the side portion 15 and on the toe side of the sole portion 12 so as not to protrude further toward the toe side in the toe-heel direction than the side portion 15. The maximum width of the head body 1 in the toe-heel direction is restricted by rules. Therefore, the first weight portion 14 is preferably effectively disposed in a space that does not restrict the shape of the head body 1.

[0032] 1, it is preferable that the first weight portion 14 has a lower surface 14a that extends parallel to the horizontal plane in the toe-heel direction when the golf club head 10 is placed on the horizontal plane to have a predetermined lie angle and loft angle. With this configuration, it is easy to simultaneously lower the center of gravity of the golf club head 10 and improve the lateral moment of inertia.

[0033] The sole portion 12 and the lower surface 14a of the first weight portion 14 may extend linearly in the toe-heel direction. In other words, there may be no step at the connection between the sole portion 12 and the lower surface 14a of the first weight portion 14. With this configuration, the center of gravity of the golf club head 10 can be easily lowered.

[0034] The first weight portion 14 has an outer surface 14b that extends downward continuously from the lower end edge of the side portion 15. With this configuration, the lateral moment of inertia of the golf club head 10 can be easily increased at a position that does not affect the maximum width of the head body 1 in the toe-heel direction.

[0035] [Sole] 4, a weight 16 may be disposed on the inner surface of the sole portion 12 in order to lower the center of gravity of the golf club head 10. This weight 16 is preferably provided forward of the center of gravity G of the golf club head 10. It is also preferable that this weight 16 is disposed on the inner surface of the first weight portion 14. By disposing the weight 16 on the first weight portion 14, the golf club head 10 can promote both a lower center of gravity and an increase in the moment of inertia.

[0036] (Neck) The neck portion 2 has a neck body 21 connected to the head body 1 and a second weight portion 22 extending upward from the neck body 21. More specifically, the neck portion 2 has the neck body 21, a socket 23 connected to the upper end of the neck body 21, and a second weight portion 22 extending upward from the socket 23. The second weight portion 22 is at least partially provided at a position included in the second region R2. The golf club head 10 has the second weight portion 22, which makes it easy to increase the lateral moment of inertia. To explain in more detail, as described above, in the golf club head 10, the maximum width of the head body 1 in the toe-heel direction is regulated by rules and cannot be made larger than a certain amount. On the other hand, the neck portion 2 is not restricted by the maximum width of the head body 1 in the toe-heel direction. Therefore, by increasing the length of the neck portion 2 and increasing the weight of the neck portion 2, the lateral moment of inertia can be effectively increased.

[0037] The second weight portion 22 has a long cylindrical first portion 22a connected to the socket 23, and a second portion 22b connected to an upper end of the first portion 22a and having a larger diameter than the first portion 22a. By disposing the second portion 22b at the upper end of the first portion 22a, the second weight portion 22 can easily increase the weight at a position away from the center of gravity G of the golf club head 10. As a result, the lateral moment of inertia can be easily and reliably increased.

[0038] <Advantages> In the golf club head 10, the distance between the center of gravity G of the entire golf club head and the projection point P of this center of gravity G projected onto the face surface 11a is 25 mm or less, and the golf club head 10 has a thoroughly shallow center of gravity. By making the center of gravity shallow, the ratio of the height of the projection point P to the height of the entire face portion 11 is controlled to be 0.4 or more and 0.5 or less. As a result, the golf club head 10 can increase the flight distance of the ball.

[0039] In the golf club head 10, since the maximum width of the head body 1 in the toe-heel direction is regulated by the rules, it is preferable to increase the length of the neck portion 2 and increase the weight at a position away from the center of gravity G to increase the lateral moment of inertia. In this case, it is desirable to increase the weight of the toe side located on the opposite side of the neck portion 2 with respect to the face center C, in order to meet the demand for a lower center of gravity. From this viewpoint, the golf club head 10 controls the ratio of the weight of the toe side 15 mm or more below the face center C and 30 mm or more below the face center C to 0.2 or more, and the ratio of the weight of the heel side 30 mm or more above the face center C to 0.2 or more, relative to the weight of the entire golf club head. As a result, the golf club head 10 can increase the directional ability of the hit ball by increasing the lateral moment of inertia.

[0040] [Second embodiment] <Golf club head> The golf club head 30 in Fig. 5 is a wood-type golf club head. The golf club head 30 includes a hollow head body 31 having a face portion 41 and a sole portion 42, and a neck portion 32 into which a shaft is inserted. The golf club head 30 has a flat surface portion 31b on the rear surface of the head body 31. The flat surface portion 31b is disposed facing the face surface 41a in the front-rear direction. The golf club head 30 can have the same configuration as the golf club head 10 in Fig. 1, except that the flat surface portion 31b is on the rear surface of the head body 31. Note that the term "flat surface" includes a shape that is partially uneven.

[0041] <Advantages> The golf club head 30 has the flat portion 31b, which allows the weight at the rear of the head body 31 to be reduced. As a result, the weight can be easily distributed to increase the lateral moment of inertia while achieving a lighter weight and a shallower center of gravity.

[0042] [Third embodiment] <Golf club head> The golf club head 50 of FIG. 6 is a wood-type golf club head. The golf club head 50 includes a hollow head body 51 having a face portion 61 and a sole portion 62, and a neck portion 52 into which a shaft is inserted. The head body 51 has a first weight portion 64 protruding from the sole portion 62 toward the toe side. The neck portion 52 has a neck body 65 connected to the head body 51, and a second weight portion 66 extending upward from the neck body 65. More specifically, the neck portion 52 has the neck body 65, a socket 67 connected to the upper end of the neck body 65, and the second weight portion 66 extending upward from the socket 67. The golf club head 50 can have the same configuration as the golf club head 10 of FIG. 1, except for the shapes of the first weight portion 64 and the second weight portion 66. Therefore, only the first weight portion 64 and the second weight portion 66 will be described below.

[0043] (1st weight part) The first weight portion 64 is selectively provided at a position forward of the center of gravity of the golf club head 50. With this configuration, the golf club head 50 can easily have a shallow center of gravity.

[0044] The first weight portion 64 has a lower surface 64a extending parallel to the horizontal plane in the toe-heel direction when the golf club head 50 is placed on the horizontal plane to have a predetermined lie angle and loft angle. The first weight portion 64 is preferably provided at a position that does not affect the maximum width of the head body 51 in the toe-heel direction.

[0045] (Second weight part) The second weight portion 66 is composed of a long cylindrical first portion 66a connected to the socket 67. In other words, the second weight portion 66 does not have a second portion having a larger diameter than the first portion 66a at the upper end of the first portion 66a.

[0046] <Advantages> The golf club head 50 can increase both the flight distance and direction of a hit ball.

[0047] [Fourth embodiment] <Golf club head> The golf club head 70 in FIG. 7 is a wood-type golf club head. The golf club head 70 includes a hollow head body 71 having a face portion 81 and a sole portion 82, and a neck portion 72 into which a shaft is inserted. The head body 71 has a first weight portion 84 protruding from the sole portion 82 toward the toe side. The golf club head 70 can have the same configuration as the golf club head 10 in FIG. 1 except for the shape of the first weight portion 84. Therefore, only the first weight portion 84 will be described below. Note that FIG. 7 illustrates a configuration in which no weight is disposed on the inner surface of the sole portion 82 and the first weight portion 84. However, the golf club head 70 may have a weight disposed on the inner surface of both or either one of the sole portion 82 and the first weight portion 84.

[0048] (1st weight part) The first weight portion 84 has a columnar portion 84a whose central axis extends in the front-rear direction. The columnar portion 84a extends rearward from a position forward of the center of gravity of the golf club head 70. The columnar portion 84a protrudes rearward from the center of gravity of the golf club head 70. With this configuration, the golf club head 70 can easily increase the lateral moment of inertia. The specific shape of the columnar portion 84a is not particularly limited, but can be, for example, a substantially triangular pyramid shape.

[0049] The first weight portion 84 has a lower surface that extends parallel to the horizontal plane in the toe-heel direction when the golf club head 70 is placed on the horizontal plane to have a predetermined lie angle and loft angle. The first weight portion 84 is preferably provided at a position that does not affect the maximum width of the head body 71 in the toe-heel direction.

[0050] <Advantages> The golf club head 70 can increase both the flight distance and direction of a hit ball.

[0051] [Other embodiments] The above-described embodiments do not limit the configuration of the present invention. Therefore, the above-described embodiments may include omissions, substitutions, or additions of components of each part of the embodiments based on the description in this specification and common general technical knowledge, and all of these should be interpreted as falling within the scope of the present invention.

[0052] The golf club head may have a configuration that does not have either one or both of the first and second weight portions as long as the distance between the center of gravity of the entire golf club head and the projection point of this center of gravity projected onto the front surface of the face portion, the ratio of the height of the projection point to the height of the entire face portion, the ratio of the weight of the toe side that is 15 mm or more below the face center and 30 mm or more above the face center to the weight of the entire golf club head, and the ratio of the weight of the heel side that is 30 mm or more above the face center and 30 mm or more above the face center to the weight of the entire golf club head can be controlled within the aforementioned ranges.

[0053] Even if the golf club head has at least one of the first weight portion and the second weight portion, the specific shapes of these weight portions are not limited to the shapes described in the above embodiment. For example, if the golf club head has the first weight portion, the first weight portion does not need to have a lower surface extending parallel to a horizontal plane.

[0054] The configurations described in the first to fourth embodiments can be combined in any manner. For example, in the configuration described in the third or fourth embodiment, a flat surface may be provided on the rear surface of the head body. [Industrial Applicability]

[0055] As described above, a golf club head according to one aspect of the present invention is suitable for increasing both the flight distance and directionality of a hit ball. [Explanation of symbols]

[0056] 1, 31, 51, 71 Head body 2, 32, 52, 72, 250 Neck 10, 30, 50, 70, 100, 200 Golf Club Head 11, 41, 61, 81, 110, 210 Face part 11a, 41a face surface 12, 42, 62, 82, 120, 220 Sole 13 Crown section 14, 64, 84 1st weight part 14a, 64a bottom side 14b External surface 15 Side section 16, 130 weight 21, 65 Neck body 22, 66 2nd weight part 22a, 66a Part 1 22b Part 2 23, 67 Socket 31b Plane part 84a Columnar part 240 The part on the toe side of the sole C Face Center G center of gravity P projection point R1 1st area R2 2nd area H Overall face height H1 Height of the projection point

Claims

1. A wood-type golf club head including a hollow head body having a face portion and a sole portion, and a neck portion into which a shaft is inserted, the distance between the center of gravity of the entire golf club head and the projection point of the center of gravity projected onto the front surface of the face portion is 25 mm or less; a ratio of a height of the projection point to a height of the entire face portion is 0.4 or more and 0.5 or less, The head body includes a first weight portion protruding from the sole portion toward a toe side, the neck portion has a neck body connected to the head body and a second weight portion extending upward from the neck body, In a state where the golf club head is arranged on a horizontal plane so as to have a lie angle and a loft angle specific to the golf club head that are preset, The ratio of the weight of the entire golf club head to the weight of a portion 15 mm or more below the face center and 30 mm or more to the toe side is 0.2 or more; A golf club head in which the ratio of the weight of a portion 30 mm or more above the face center and 30 mm or more on the heel side to the weight of the entire golf club head is 0.2 or more.

2. Lateral moment of inertia is 2500g cm ２ 2. The golf club head according to claim 1.

3. 3. The golf club head according to claim 1, wherein the weight of the entire golf club head is 210 g or less.

4. A golf club head as described in any one of claims 1 to 3, further comprising a weight disposed on the inner surface of the sole portion.

5. The golf club head according to claim 1 , wherein the first weight portion has a lower surface extending parallel to the horizontal plane.

6. The first weight portion is at least partially provided in an area 15 mm or more below the face center and 30 mm or more to the toe side, 6. The golf club head according to claim 1, wherein the second weight portion is at least partially provided in a region 30 mm or more above the face center and 30 mm or more toward the heel side.

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