JP2023092135A - Wood type golf club head - Google Patents

Abstract

To provide a wood type golf club head that can easily improve directivity of a hit ball.SOLUTION: A wood type golf club head 10 according to an embodiment of the present invention comprises a head body 1 having a face part 2 having a face surface 2a, and a crown part 3 extending rearward from an upper edge of the face part 2. The head body 1 has a protrusion part 7 protruding upward from an upper surface of the crown part 3, and long in a front-rear direction. An extending direction of the protrusion part 7 is a direction orthogonal to the face surface 2a in a planar view.SELECTED DRAWING: Figure 1

Description

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

A wood-type golf club head is desired to increase the flight distance of a hit ball. Hitting the ball at the center of the face surface is effective in increasing the flight distance of the hit ball. From this point of view, it has been proposed to provide a mark indicating the center of the face on the crown so that the center of the face can be recognized when hitting (see Patent Document 1).

Japanese Patent Publication No. 2001-508333

Patent Document 1 describes that a mark 120 is provided in a portion positioned above the center of the face surface (see FIG. 12 of Patent Document 1). The mark 120 has a point 122 and a semicircular line 123 extending around the point 122 in a semicircular shape. Patent Literature 1 describes that the provision of the mark 120 on the crown makes it easier for the player to hit the ball near the center of the face surface.

On the other hand, a wood-type golf club head is desired to hit a ball in a desired direction. In order to hit the ball in a desired direction, it is effective to swing the ball in the desired direction. For this purpose, it is required that the head body can be precisely aligned with the target line.

However, according to the conventional mark as described in Patent Document 1, although the central portion of the face surface can be recognized, it is difficult to improve the accuracy of alignment.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wood-type golf club head capable of easily improving the directionality of hitting a ball.

A wood-type golf club head according to one aspect of the present invention includes a head body having a face portion having a face surface and a crown portion extending rearward from an upper edge of the face portion, wherein the head body includes the crown portion. and has a projection that is long in the front-rear direction, and the direction in which the projection extends is perpendicular to the face surface in plan view.

Preferably, the upper edge of the protrusion is linearly extending in the front-rear direction, and is arranged horizontally with the head body arranged at a predetermined lie angle and loft angle.

The radius of curvature of the upper surface of the crown portion at the portion where the protrusion is arranged is preferably 200 mm or less.

It is preferable that the distance between the protrusion and the face surface in the front-rear direction is 5 mm or more and 12 mm or less.

It is preferable that the height of the projection portion gradually decreases from the front to the rear.

The maximum height of the protrusion is preferably 4 mm or more.

A flat portion is provided on the upper portion of the protrusion, and the flat portion is horizontal when the head body is arranged to have a predetermined lie angle and loft angle, and extends in the extending direction of the protrusion. It is preferable to have straight sides that extend.

The length of the protrusion in the front-rear direction is preferably 10 mm or more and 50 mm or less, and the width of the protrusion is preferably 0.6 mm or more and 8 mm or less.

It is preferable that the protrusion is arranged behind a central portion of the face in the toe-heel direction.

In the present invention, the term "front" means the side on which the golf ball is hit, and the term "rear" means the opposite side. "Fore-and-aft direction" refers to the front-to-rear direction (perpendicular to the vertical plane including the central axis of the shaft) when the head body is placed on a horizontal plane so as to have a predetermined lie angle and loft angle (specific to the head body). direction). The "toe-heel direction" means a horizontal direction orthogonal to the front-rear direction when the head body is arranged on a horizontal plane so as to have a predetermined lie angle and loft angle. "Center of the face in the toe-heel direction" means a width of 5 mm on each of the toe and heel sides with respect to the center point in the toe-heel direction with the toe-side and heel-side endpoints of the face as a reference. means area. "The extending direction of the protrusions is orthogonal to the face surface in plan view" means that the tangent line that can be drawn at the center of the face surface in the toe-heel direction and the extending direction of the protrusions are orthogonal to each other in plan view. means that "Horizontal" is most preferably strictly horizontal, but includes configurations that are inclined in the range of 3° or less with respect to the strictly horizontal. "The radius of curvature of the upper surface of the crown at the portion where the projection is arranged" is the direction along the front-rear direction of the upper surface of the crown obtained from the virtual curved surface obtained by extending the curved surface in the vicinity where the projection is arranged. means radius of curvature.

In a wood-type golf club head according to an aspect of the present invention, the head body has a projection that protrudes upward from an upper surface of the crown and is long in the front-rear direction, and the projection extends from the top surface of the crown. Since the direction is perpendicular to the face surface in plan view, the head body can be precisely aligned with the target line. More specifically, since the upper surface of the crown portion of the wood-type golf club head is curved, if a mark is provided on the upper surface of the crown portion as described in Patent Document 1, the mark will be curved three-dimensionally, and the face will be curved. It is difficult to recognize the normal direction of the surface. On the other hand, in the wood-type golf club head, the protrusion protrudes upward from the upper surface of the crown so that the extending direction of the protrusion can be recognized regardless of the viewing direction. Therefore, the head body can be precisely aligned with the target line. As a result, the directivity of the hit ball can be easily improved.

FIG. 1 is a schematic perspective view of a wood-type golf club head according to one embodiment of the present invention. 2 is a schematic plan view of the wood-type golf club head of FIG. 1. FIG. FIG. 3 is a schematic side view of the wood-type golf club head of FIG. 1 as seen from the toe side. 4 is a schematic side view showing projections of the wood-type golf club head of FIG. 1. FIG. 5 is a schematic front view showing projections of the wood-type golf club head of FIG. 1. FIG. FIG. 6 is a schematic perspective view showing a first modification of the protrusion of the wood-type golf club head of FIG. FIG. 7 is a schematic perspective view showing a second modification of the protrusion of the wood-type golf club head of FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. For the numerical values described in this specification, it is possible to adopt only one of the described upper limit value and lower limit value, or to arbitrarily combine the upper limit value and the lower limit value.

[First embodiment]
<Wood type golf club head>
A wood-type golf club head 10 shown in FIGS. 1 to 3 includes a head body 1 having a face portion 2 having a face surface 2 a and a crown portion 3 extending rearward from the upper edge of the face portion 2 . The head body 1 includes a sole portion 4 extending rearward from the lower edge of the face portion 2, and a crown portion 3 and a sole portion 4 extending rearward from the toe side edge and the heel side edge of the face portion 2. and a shaft attachment portion 6 to which a shaft is attached. Further, the head body 1 has a protruding portion 7 that protrudes upward from the upper surface of the crown portion 3 and is elongated in the front-rear direction. The face surface 2 a constitutes the front surface of the face portion 2 . The face surface 2 a constitutes a striking surface of the wood-type golf club head 10 . The extending direction of the protrusion 7 is a direction orthogonal to the face surface 2a in plan view.

The head body 1 is hollow, for example. The material of the head body 1 is not particularly limited, and examples thereof include metals and alloys containing titanium, stainless steel, maraging steel, aluminum, magnesium, etc. as main components. As the material of the head body 1, it is also possible to use fiber reinforced resin such as carbon fiber reinforced resin (CFRP) and glass fiber reinforced resin (GFRP).

The wood type golf club head 10 is used, for example, as a driver, utility, fairway wood, or the like. Among others, the wood type golf club head 10 is preferably used as a driver.

(protrusion)
The protruding portion 7 may be formed integrally with the crown portion 3 or may be formed separately from the crown portion 3 and fixed to the upper surface of the crown portion 3 . Details of the protrusion 7 will be described below with reference to FIGS. 4 and 5. FIG.

It is preferable that the protruding portion 7 be provided in the vicinity of the face surface 2a. The proximity of the protrusion 7 to the face surface 2a makes it easier for the player to recognize the normal direction of the face surface 2a. As a result, it is easy to improve the directionality of the hit ball.

The upper limit of the distance D (see FIG. 2) between the protrusion 7 and the face surface 2a in the front-rear direction is preferably 12 mm, more preferably 10 mm. If the distance D exceeds the upper limit, it may be difficult for the player to recognize the normal direction of the face surface 2a. On the other hand, the lower limit of the distance D can be 5 mm from the viewpoint of improving the appearance of the head body 1 .

The projecting portion 7 has an upper edge 7a extending in the front-rear direction. The upper edge 7a is linear. The upper edge 7a is arranged horizontally with the head body 1 arranged to have a predetermined lie angle and loft angle. The wood-type golf club head 10 has an upper edge 7a of the protrusion 7 extending linearly in the front-rear direction, and is horizontally arranged with the head body 1 arranged at a predetermined lie angle and loft angle. As a result, the upper edge 7a of the protrusion 7 can be easily used as an alignment mark. In other words, the golf club head may vary in lie angle at address due to the player's height and posture. On the other hand, since the upper edge 7a of the protrusion 7 is horizontal and extends linearly in the front-rear direction, the upper edge 7a has the same height in the front-rear direction regardless of the lie angle at address. and arranged with the front-rear direction as the long axis. Therefore, even in a structure in which the upper surface of the crown portion 3 is three-dimensionally curved, the alignment accuracy can be easily improved by the projection portion 7 .

A flat portion 7 b is provided on the upper portion of the protrusion 7 . In the wood-type golf club head 10 , the flat portion 7 b is positioned at the upper edge 7 a of the protrusion 7 . In other words, the upper edge 7a of the protrusion 7 is formed by the plane portion 7b. Therefore, the length of the plane portion 7b in the front-rear direction is equal to the length of the upper edge 7a in the front-rear direction.

The plane portion 7b is horizontal when the head body 1 is arranged to have a predetermined lie angle and loft angle. In addition, as shown in FIGS. 1, 2 and 5, the planar portion 7b has a straight side 7c extending in the extending direction of the protrusion 7. As shown in FIG. More specifically, the plane portion 7b has a rectangular shape whose longitudinal direction is the front-rear direction, and has a pair of sides 7c extending in parallel along the longitudinal direction. The wood-type golf club head 10 has a flat portion 7b having a constant width on the upper portion of the protrusion 7. As shown in FIG. Therefore, it is easy to make the flat portion 7b function as an alignment mark. Further, since the plane portion 7b has the side 7c, the outer edge of the plane portion 7b can be easily recognized, so that the plane portion 7b can be easily made to function as an alignment mark.

The projecting portion 7 has an edge extending in the front-rear direction. In this embodiment, this edge is formed by the side 7c of the planar portion 7b. Said edge is therefore located at the upper end of the protrusion 7 . The length of said edge is equal to the length of the upper edge 7a. With the wood-type golf club head 10 , the edge is provided on the protrusion 7 , so that the player can easily recognize the extending direction of the protrusion 7 .

The projecting portion 7 has a shape in which the lower surface of a rectangular parallelepiped is notched so as to match the upper surface of the crown portion 3 . Therefore, the upper edge 7a of the protrusion 7 extends over both ends of the protrusion 7 in the front-rear direction. Moreover, the width of the protrusion 7 is uniform.

The lower limit of the length L of the protrusion 7 in the front-rear direction (that is, the length in the front-rear direction of the upper edge 7a in this embodiment) is preferably 10 mm, more preferably 15 mm. On the other hand, the upper limit of the length L in the front-rear direction is preferably 50 mm, more preferably 40 mm. If the length L in the front-rear direction is less than the lower limit, it may be difficult to make the protrusion 7 function as an alignment mark. Conversely, if the length L in the front-rear direction exceeds the upper limit, the effect of improving the function of the protrusions 7 as alignment marks may not be obtained so much, or the head body 1 may become heavy due to the protrusions 7 . There is

The lower limit of the width W of the protrusion 7 (that is, the width of the plane portion 7b in this embodiment) is preferably 0.6 mm, more preferably 1.5 mm. On the other hand, the upper limit of the width W is preferably 8 mm, more preferably 5 mm. If the width W is less than the lower limit, it may be difficult for the player to recognize the protrusion 7 . Conversely, if the width W exceeds the upper limit, it may be difficult to make the protrusion 7 function as an alignment mark.

The lower limit of the ratio L/W of the length L in the front-rear direction to the width W of the protrusion 7 (that is, the ratio of the length in the front-rear direction of the upper edge 7a to the width of the flat portion 7b in this embodiment) is preferably 5. , 7 are more preferred. On the other hand, the upper limit of the ratio L/W is preferably 50, more preferably 20. If the ratio L/W is less than the lower limit, it may be difficult to make the protrusions 7 function as alignment marks. Conversely, if the ratio L/W exceeds the upper limit, there is a risk that the length L of the protrusion 7 in the front-rear direction will become unnecessarily large, or that the width W of the protrusion 7 will become too small, causing the player to overwhelm the protrusion 7. may become difficult to recognize.

As shown in FIG. 4, the height of the protrusion 7 gradually decreases from the front to the rear. By configuring the protrusions 7 in this way, it becomes easier for the player to recognize the upper edge 7a of the protrusions 7 closer to the face surface 2a. Therefore, the player can easily recognize the normal direction of the face surface 2a. As a result, the projections 7 can more easily function as alignment marks.

The lower limit of the maximum height H of the protrusion 7 is preferably 4 mm, more preferably 4.5 mm. If the maximum height H is less than the lower limit, it may not be easy for the player to recognize the normal direction of the face surface 2a. Although the upper limit of the maximum height H is not particularly limited, it can be set based on the Rules of Golf and the like, and can be set to 6.35 mm, for example.

The upper limit of the radius of curvature (maximum value of the radius of curvature) of the upper surface of the crown portion 3 at the portion where the protrusion 7 is arranged is preferably 200 mm, more preferably 180 mm. In a configuration in which the radius of curvature of the upper surface of the crown portion 3 is equal to or less than the above upper limit, if the projection portion 7 were not present, the curved shape of the crown portion 3 would cause the normal direction of the face surface 2a. is difficult to grasp. On the other hand, in the wood-type golf club head 10, the protrusion 7 is provided on the upper surface of the crown portion 3, so that the player can easily recognize the normal direction of the face surface 2a. In the wood-type golf club head 10, the normal direction of the face surface 2a can be recognized by the protrusion 7, so the lower limit of the radius of curvature is not particularly limited. The lower limit of the radius of curvature can be, for example, 130 mm.

The arrangement of the protrusions 7 in the toe-heel direction is not particularly limited. Therefore, the protrusion 7 may be arranged, for example, behind the face surface 2a on the toe side or the heel side. However, it is preferable that the protrusion 7 is arranged behind the central portion of the face surface 2a in the toe-heel direction. By arranging the protrusions 7 in this manner, the player can recognize the central portion of the face surface 2a in the toe-heel direction. As a result, the player can easily hit the ball at the center of the face surface 2a.

<Advantages>
In the wood-type golf club head 10, the head body 1 protrudes upward from the upper surface of the crown portion 3 and has a projection 7 elongated in the front-rear direction. is perpendicular to the face surface 2a, the head body 1 can be precisely aligned with the target line. More specifically, since the upper surface of the crown portion of the wood-type golf club head is curved, if a mark is provided on the upper surface of the crown portion as described in Patent Document 1, the mark will be curved three-dimensionally, and the face will be curved. It is difficult to recognize the normal direction of the surface. On the other hand, in the wood-type golf club head 10, the protrusion 7 protrudes upward from the upper surface of the crown portion 3 so that the extending direction of the protrusion 7 can be recognized regardless of the viewing direction. Therefore, the head body 1 can be precisely aligned with the target line. As a result, the directivity of the hit ball can be easily improved.

[Other embodiments]
The above embodiments do not limit the configuration of the present invention. Therefore, in the embodiment, the components of each part of the embodiment can be omitted, replaced, or added based on the description of the present specification and common general technical knowledge, and all of them are interpreted as belonging to the scope of the present invention. should.

In the above embodiment, the configuration in which the upper edge of the protrusion is a flat portion has been described. However, the wood-type golf club head may adopt a configuration that does not have the flat portion. For example, as shown in FIG. 6, the upper edge 17a of the protrusion 17 of the wood-type golf club head may be arched. In FIG. 6, the upper edge 17a of the protrusion 17 is curved so as to protrude upward. An upper edge 17a of the protrusion 17 is linear and extends in the front-rear direction. Further, the upper edge 17a is arranged horizontally with the head body arranged so as to have a predetermined lie angle and loft angle. Such a configuration also allows the wood-type golf club head to accurately align the head body with the target line.

Further, as shown in FIG. 7, the upper edge 27a of the protrusion 27 of the wood-type golf club head may protrude upward in a V shape. In FIG. 7, the upper edge 27a of the protrusion 27 is pointed upward at an acute angle. An upper edge 27a of the protrusion 27 is linear and extends in the front-rear direction. Further, the upper edge 27a is arranged horizontally with the head body arranged to have a predetermined lie angle and loft angle. Further, the upper edge 27a has a straight side (edge) extending in the direction in which the projection 27 extends. Such a configuration also allows the wood-type golf club head to accurately align the head body with the target line.

Furthermore, even when the wood-type golf club head has the flat portion above the protrusion, the flat portion may be provided at a portion other than the upper edge of the protrusion. For example, in the configuration of FIG. 6 or FIG. 7, the planar portion may be arranged in the vicinity of the upper edges 17a, 27a with a step from the upper edges 17a, 27a.

In the above embodiment, the configuration in which one protrusion is provided on the upper surface of the crown portion has been described. However, the wood-type golf club head may have two or more protrusions on the upper surface of the crown portion.

As described in the above embodiment, it is preferable that the entire upper edge of the protrusion be linear extending in the front-rear direction. However, in the wood-type golf club head, if the protrusion itself is elongated in the front-rear direction, for example, part or all of the upper edge of the protrusion may meander.

The protrusion may have a portion whose height increases from the front to the rear.

As described above, the wood-type golf club head according to one aspect of the present invention is suitable for accurately aligning the head body with the target line.

1 head body 2 face portion 2a face surface 3 crown portion 4 sole portion 5 side portion 6 shaft attachment portions 7, 17, 27 projections 7a, 17a, 27a upper edge 7b flat portion 7c side 10 wood-type golf club head D projections and the face surface in the front-rear direction H Maximum height of the protrusion L Length of the protrusion in the front-rear direction W Width of the protrusion

Claims (9)

a head body having a face portion having a face surface and a crown portion extending rearward from an upper edge of the face portion;
the head main body has a protrusion that protrudes upward from the upper surface of the crown and is elongated in the front-rear direction;
A wood-type golf club head, wherein the extending direction of the protrusion is perpendicular to the face surface in a plan view. 2. The projection according to claim 1, wherein the upper edge of the projection is linearly extending in the front-rear direction, and the upper edge is horizontally arranged with the head body arranged to have a predetermined lie angle and loft angle. wood type golf club head. 3. The wood type golf club head according to claim 1, wherein the radius of curvature of the upper surface of the crown portion at the portion where the protrusion is arranged is 200 mm or less. 4. The wood-type golf club head according to claim 1, wherein the distance between the protrusion and the face surface in the front-rear direction is 5 mm or more and 12 mm or less. The wood-type golf club head according to any one of claims 1 to 4, wherein the height of the protrusion gradually decreases from the front to the rear. The wood-type golf club head according to any one of claims 1 to 5, wherein the maximum height of the protrusion is 4 mm or more. An upper portion of the protrusion has a flat portion,
7. The planar portion is horizontal with the head body arranged to have a predetermined lie angle and loft angle, and has a straight side extending in the extending direction of the protrusion. 2. A wood-type golf club head according to 1 or 2. 8. The wood-type golf club head according to claim 1, wherein the projection has a length in the front-rear direction of 10 mm or more and 50 mm or less, and a width of the projection of 0.6 mm or more and 8 mm or less. . The wood-type golf club head according to any one of claims 1 to 8, wherein the protruding portion is arranged behind a central portion of the face surface in the toe-heel direction.

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