JPH073677U - Golf club head - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention is intended to provide a versatile golf club that can be used for a wide range of ball hits from beginners to intermediate players. [Structure] In order to reduce the rigidity of the face surface 2 of the golf club head 1 from the toe side 3 to the heel side 4, ribs 6 are formed on the back surface 5 of the face surface 2 at intervals.
And the rib 6 is formed so that the volume ratio gradually decreases or the height gradually decreases as the shape of the rib 6 moves from the toe side 3 to the heel side 4. head.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a golf club head that improves a sliced ball.

[0002]

[Prior art]

 Conventionally, the most difficult thing in golf is simply hitting a golf ball straight in a direction desired by a golfer. However, most beginners hit the ball with the face of the head open when hitting the golf ball, or because it is a cut hit (OUTSIDE-IN) .For example, in the case of a right-handed person, the hit ball is bent to the right. It often becomes a so-called slice ball, which was a problem for beginners. In addition, even intermediate players had a problem of excessive correction of slices and, for example, in the case of a right-handed person, the hit ball became a so-called hook ball in which the ball was bent to the left.

Therefore, in order to correct the bending of these hit balls, for example, as a method of correcting a slice ball, the face is faced to the left (CLOSED) in advance or weight is added to the toe side of the head. Therefore, when the ball is hit on the toe side, the rotation of the head opening is reduced. In addition, as disclosed in Japanese Utility Model Publication No. 2-32306 shown in FIG. 5, the face surface of the head has an arch shape in which the central portion has the smallest thickness and gradually becomes thicker toward the toe side and the heel side. It is disclosed that the strength is excellent and the directionality of the ball can be improved.

Further, as disclosed in US Pat. No. 4,432,549 shown in FIG. 6, in a metal wood head type head, the thickness of the face surface is gradually reduced from the toe side to the center of the face surface. There is also known a head having a structure in which the thickness is substantially constant from the center of the face surface to the heel side.

[0005]

[Problems to be solved by the device]

 However, these conventional devices have the following problems to be solved. That is, in these conventional devices, since the face direction is set to the left (CLOSED) in advance, there is a drawback in that the face direction looks different from the target and gives a sense of discomfort. Was there.

In the latter, the weight has been added to the toe side of the head to reduce the opening rotation of the head when hitting the ball on the toe side. , The effect was not sufficient.

Further, as in the head disclosed in Japanese Utility Model Publication No. 2-32306, in the case where the head surface has an arch shape in which the central portion is the thinnest and the thickness gradually increases toward the toe side and the heel side, If you are an intermediate player who can hit the ball in the center of the face surface, you can improve the direction of the ball, but like a beginner, you can open the face of the head and hit or cut. In the case of (OUTSIDE-IN), the directionality of the ball could not be improved so much.

Further, as in the head disclosed in US Pat. No. 4,432,549, the thickness of the face surface is gradually reduced from the toe side to the center portion of the face surface, and from the center portion of the face surface to the heel side. In the case of a head with a substantially constant thickness, the deflection distribution when hitting a ball is close to the center of the face surface, so if you are an intermediate player who can hit in the center of the face surface of the head, It is possible to improve the directionality of the ball, but if you hit the ball by opening the face of the head or making a cut hit (OUTSIDE-IN) like a beginner, the directionality of the ball Could not be improved at all.

Further, in these conventional golf club heads, since the thickness of the face surface is changed, a stress of 1 ton is applied to the face surface each time the ball is repeatedly hit. The durability was not good, because it had the drawback that stress concentration occurred in the thin-walled part and cracking or depression occurred.

The present invention has been made in view of these conventional drawbacks, and an object thereof is to provide a versatile golf club that can be used by a wide range of players, from beginners to intermediate players, to achieve a substantially straight hit.

[0011]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention focuses on the bending phenomenon of the face surface at the time of hitting the ball, so that the rigidity of the face surface of the golf club head becomes lower as it shifts from the toe side to the heel side. The ribs are formed on the back surface of the ribs at intervals, and the volume ratio gradually decreases as the shape of the ribs shifts from the toe side to the heel side. In addition, the height shape of the ribs formed at intervals on the back surface of the face surface is configured to gradually decrease as the toe side moves to the heel side.

[0012]

[Action]

 With the golf club head of the present invention, when hitting a ball with the head, even an amateur golfer applies an impact force of about 1 ton on driver shots. Since the minimum is about 2.6 mm, it is thin, and when it hits the ball, the maximum deflection of about 2.0 mm occurs at the center of the face surface with a normal shot.

In the present invention, by utilizing the bending phenomenon of the face surface, the rigidity distribution of the face surface is gradually changed so that a desired hit ball can be obtained. In the present invention, ribs are formed at intervals on the back surface of the face surface, and the volume ratio gradually decreases as the shape of the ribs shifts from the toe side to the heel side, or The height of the rib is designed to gradually decrease as it moves from the toe side to the heel side.Therefore, by changing the lateral width, volume and height of the rib, the height of the face surface is substantially changed. It is possible to gradually change the rigidity. That is, when slicing is to be prevented, the heel side stiffness (deflection rigidity) is made lower than the toe side, so that the maximum deflection point B at the time of hitting the ball is provided on the heel side from the center of the face surface. When the ball is hit near the center of the surface, the angle θ between the tangent of the face and the direction of the ball at the hit point is 90 ° or less, so the face becomes crowded, hookspin occurs, and a draw ball with a long distance is played. It is something that can be created. In addition, since the number of sliced balls, which is often used by beginners, is reduced, the direction is more stable.

[0014]

【Example】

 The present invention focuses on the bending phenomenon of the face surface at the time of hitting the ball, and is characterized in that the rigidity of the face surface portion of the golf club head is configured to become lower as it shifts from the toe side to the heel side. Is. That is, the ribs 6 are formed at intervals on the back surface 5 of the face surface 2 so that the rigidity of the face surface 2 of the golf club head 1 becomes lower as it moves from the toe side 3 to the heel side 4. The golf club head 1 is configured such that the volume ratio gradually decreases as the shape of the rib 6 shifts from the toe side 3 to the heel side 4.

Further, as shown in FIGS. 1 to 3, the rigidity of the face surface 2 of the golf club head 1 is reduced on the back surface 5 of the face surface 2 so that the rigidity of the face surface 2 decreases from the toe side 3 to the heel side 4. The golf club head 1 is characterized in that the ribs 6 are formed at intervals and the height shape of the ribs 6 is gradually lowered as the ribs 6 move from the toe side 3 to the heel side 4. .

In the golf club head 1 of the present invention, keeping the thickness of the face surface 2 substantially constant facilitates molding of the head and improves productivity, and at the same time, the head itself. It is also desirable from the viewpoint of maintaining and improving the strength of. That is, in the golf club head 1 of the present invention, as in the head of a conventional golf club, the thickness of the face surface is changed, so that each time the ball is hit, about 1 ton of stress is applied each time. It is possible to prevent defects such as repeated stresses on the face part, stress concentration on the thin part of the face surface, cracking and depression.

[0017]

[Effect of device]

 As described above, in the golf club head of the present invention, when slicing is to be prevented by changing the volume ratio or height of the ribs formed on the back surface of the face surface, the flexural rigidity on the heel side is increased. The maximum deflection point when hitting the ball is set to the heel side from the center of the face by lowering the toe side, so that when the ball is hit near the center of the face, the angle between the tangent of the face surface and the hitting direction at the hitting point Since θ becomes 90 ° or less, the face becomes crows, hook spin is generated, and a draw ball with a great distance is produced. In addition, since the number of sliced balls, which is often used by beginners, is reduced, the directionality is stable.

[Brief description of drawings]

FIG. 1 is a perspective view showing a back surface side of a face surface of a golf club head according to the present invention.

FIG. 2 is a cross-sectional view showing a cross section taken along the line AA of FIG.

FIG. 3 is a cross-sectional view of an essential part showing a bent state of a golf club head according to the present invention when hitting a ball.

FIG. 4 is a cross-sectional view of an essential part showing a bending state of a conventional golf club head when hitting a ball.

FIG. 5 is a cross-sectional view of essential parts showing a face surface of a conventional golf club head.

FIG. 6 is a cross-sectional view of essential parts showing a face surface of a conventional golf club head.

[Explanation of symbols]

 1 golf club head 2 face surface 3 toe side 4 heel side 5 back surface 6 rib 7 golf ball θ angle B maximum deflection point

Claims (2)

[Scope of utility model registration request] 1. A rib is formed on the back surface of the face surface at intervals so that the rigidity of the face surface of the golf club head becomes lower as it moves from the toe side to the heel side. A golf club head characterized in that the volume ratio gradually decreases as it moves from the toe side to the heel side. 2. A rib is formed on the back surface of the face surface at intervals so that the rigidity of the face surface of the golf club head becomes lower from the toe side toward the heel side, and the shape of the rib is A golf club head, characterized in that the height of the rib gradually decreases as it moves from the toe side to the heel side.