JP2008055063A - Face plate of golf club head - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a face plate of a golf club capable of improving the stability of the direction of a shot ball. <P>SOLUTION: The face plate provided as a front plate of a hollow-shaped head body of a golf club head and having its front face plate body defined as a hitting face of a ball, is characterized by consisting of at least a single first area member provided corresponding to a sweet area of the hitting face, and a second area member mutually continuously surrounding the first area member from its circumference and having its crystal orientation different from the crystal orientation of the first area member. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a face plate of a golf club head, and more particularly to a face plate of a golf club in which the direction stability of a hit ball can be controlled more easily than in the past.

  As shown in FIGS. 1 and 2, the golf club head includes a face plate 11 provided as a front plate of the hollow golf club head main body 12 and having a front surface as a ball striking surface.

  Such a face plate 11 is conventionally made of a single metal material (for example, titanium, magnesium, aluminum, etc.), and the entire face plate 11 is almost homogeneous. At the moment of failure, the repulsive force due to the impact falls and spreads from the so-called sweet area A such as the central area where the impact is received to spread to the peripheral peripheral area. Therefore, the balance between the striking force and the repulsive force exists in the sweet area A for a very short time, that is, the time for staying on the surface of the sweet area of the ball is very short, so the golfer adjusts the posture according to the response etc. However, there is a drawback that it is quite difficult to control the direction stability of the hit ball.

  In view of the above, an object of the present invention is to provide a face plate of a golf club in which the direction stability of a hit ball can be controlled more easily than in the past.

  In order to achieve the above object, as a result of research, the inventor has made the striking surface of the face plate inhomogeneous to delay the propagation of the repulsive force and stay on the sweet area surface of the ball. I noticed that it would make the time to do a little longer.

  Based on the above notice, the present invention is a face plate which is a plate body provided as a front plate of a hollow head body of a golf club head and whose front surface is a ball striking surface. The first region member provided corresponding to the sweet area of the striking surface and the first region member continuously surrounding each other, and the crystal orientation of the first region member is the crystal orientation of the first region member A face plate of a golf club head comprising a second region member different from the first region member.

  Specifically, the present invention is a face plate that is a plate that is provided as a front plate of a hollow head body of a golf club head, and whose front surface is a ball striking surface. A first region member that is a central portion corresponding to a sweet area of the striking surface and a second metal material, the first region A golf club comprising a second region member that is integrally installed with the first region member so as to surround the member from the surroundings and so that the front surface thereof is the same surface as the front surface of the first region member A head face plate is provided.

  More specifically, the present invention is a face plate that is a plate that is provided as a front plate of a hollow head body of a golf club head, and whose front surface is a ball striking surface. A first region member whose front surface is a central portion as a sweet area of the striking surface, and a second material whose crystalline phase has a crystal orientation different from that of the first metal material. The first region is formed so as to surround the first region member from the periphery and at least its front surface is flush with the front surface of the first region member. Provided is a face plate of a golf club head comprising a second region member installed integrally with the member.

  According to the configuration of the present invention, the crystal orientations of the first region member provided corresponding to the sweet area in the face plate and the second region member surrounding the first region member from the periphery are When the face plate impacts with the ball and the repulsive force due to the impact propagates from the first region member to the second region member, the crystal orientations of the second region member are different. Since the propagation speed decreases due to resistance by the resistance and the balance between the striking force and the repulsive force exists in the sweet area for a long time, the golfer becomes easier to adjust the posture according to the response etc. It becomes easy to control the directional stability.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 3 is a perspective view showing the face plate of the golf club head according to the first embodiment of the present invention, and FIG. 4 is a cross-sectional view of the face plate of the golf club head shown in FIG.

  As shown in FIG. 4, a face plate 31 of a golf club head according to the present invention is attached as a front plate of a hollow head body 32 so as to cover an opening provided in the head body 32, and the front surface of the face plate 31 is a ball. It is a plate that is used as a striking surface.

  Referring to FIG. 3 and FIG. 4 together, the face plate 31 is provided with a first area member 311 serving as a central portion as a sweet area of the striking surface and a first area member 311. It has the formed installation opening 310 at its center, surrounds the first region member 311 from the periphery, and its front surface is the same surface as the front surface of the first region member 311, that is, the striking surface. In addition, the first area member 311 and the second area member 312 are provided integrally.

  Here, the first region member 311 and the second region member 312 are formed of metal materials of different types and different crystalline phases, but are formed of the same type of metal materials that differ only in the crystalline phase. In other words, it is only necessary that the crystalline phase is formed of materials having different crystal orientations. Examples of the metal material suitable for forming the first region member 311 and the second region member 312 include stainless steel, alloy steel, molybdenum, vanadium, zirconium, titanium, aluminum, and magnesium.

5 and 6 are sectional views of face plates 31A and 31B of golf club heads of Examples 2 and 3 of the present invention, respectively.
As shown in FIG. 5, when the opening provided in the head main body 32A is different from that in the first embodiment and extends to the lower end of the head main body 32A, the face plate 31A of the second embodiment of the present invention is Correspondingly, it can be formed to have a substantially L-shaped cross section. Accordingly, the second region member 312A constituting the face plate 31A of the present embodiment is also formed corresponding to the configuration of the face plate 31A. Incidentally, the first region member 311A in this embodiment is formed in the same manner as in the first embodiment.

  As shown in FIG. 6, when the opening provided in the head main body 32B is different from that of the first embodiment and extends to the upper and lower ends of the head main body 32B, the face plate 31B of the third embodiment of the present invention is used. Correspondingly, it can be formed to have a substantially L-shaped cross section. Accordingly, the second region member 312B constituting the face plate 31B of this embodiment is also formed corresponding to the configuration of the face plate 31B. Incidentally, the first region member 311B in this embodiment is formed in the same manner as in the first embodiment.

  In the second and third embodiments, the material conditions for forming the first region members 311A and 311B and the second region members 312A and 312B are all the same as in the first embodiment, that is, the crystal orientation of the crystalline phase is the same. What is necessary is just to be formed with a different material. Examples of the metal material suitable for forming the first region member 311 and the second region member 312 include stainless steel, alloy steel, molybdenum, vanadium, zirconium, titanium, aluminum, and magnesium.

7 and 8 are sectional views of the face plates 31C and 31D of the golf club heads of Examples 4 and 5 of the present invention, respectively.
As shown in FIG. 7, in the fourth embodiment of the present invention, the opening provided in the head main body 32C is the same as that in the first embodiment, and the second region member 312C is the same as the second region member 312 in the first embodiment. Is formed. The only difference from the first embodiment is that the first region member 311C in this embodiment is formed to be thicker than the first region member 311 in the first embodiment, and its back surface is from the back surface 315D of the second region member 312C. Projects into the interior.

  As shown in FIG. 8, the fifth embodiment of the present invention has substantially the same configuration as the fourth embodiment, except that the second region member 312D in this embodiment has a back surface 315D. The annular projection 313 further protrudes from the inner peripheral edge in contact with the first region member 311D to the inside of the head main body 32D and surrounds the portion protruding to the inside of the first region member 311D. I am doing it.

  In the third and fourth embodiments, the material conditions for forming the first region members 311C and 311D and the second region members 312C and 312D are all the same as in the first embodiment. That is, it is only necessary that the crystalline phase is formed of materials having different crystal orientations. Examples of the metal material suitable for forming the first region member 311 and the second region member 312 include stainless steel, alloy steel, molybdenum, vanadium, zirconium, titanium, aluminum, and magnesium.

  With the configuration described above, the face plate of the golf club head of the present invention is composed of the first and second region members having different crystal orientations. Therefore, when the ball is impacted on the face plate, energy is transferred during the impact. However, since the transmission force can be delayed due to the resistance force from different crystal orientations, the residence time of the ball on the face plate is lengthened, and the direction stability of the hit ball can be improved.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments and is not construed in a narrow sense. That is, various modifications and changes can be made within the spirit of the present invention. is there.

  The face plate of the golf club head configured as described above has a crystal orientation between a first region member provided corresponding to a sweet area in the face plate and a second region member surrounding the second region member from the periphery. Therefore, when impact is applied to the center area of the face plate by the ball, when the energy at impact spreads from the first area member to the second area member, the resistance force from different crystal orientations is applied. Because the transmission speed can be reduced and the ball stays on the face plate for a long time, golfers from beginners to veterans can easily hit the ball with good direction stability and can enjoy golf more.

The perspective view which shows the conventional golf club head. FIG. 2 is a cross-sectional view of the golf club head shown in FIG. 1. 1 is a perspective view showing a face plate of a golf club head of Example 1 of the present invention. FIG. 4 is a sectional view of a face plate of the golf club head shown in FIG. 3. Sectional drawing which shows the face plate of the golf club head of Example 2 of this invention. Sectional drawing which shows the face plate of the golf club head of Example 3 of this invention. Sectional drawing which shows the face plate of the golf club head of Example 4 of this invention. Sectional drawing which shows the face plate of the golf club head of Example 5 of this invention.

Explanation of symbols

31, 31A, 31B, 31C, 31D Face plate 32, 32A, 32B, 32C, 32D Head body 310 Installation openings 311, 311A, 311B, 311C, 311D First region members 312, 312A, 312B, 312C, 312D Second Area member 313 annular projection 315C, 315D back

Claims (8)

A face plate which is a plate body provided as a front plate of a hollow head body of a golf club head and whose front surface is a ball striking surface,
At least one first region member provided corresponding to a sweet area of the striking surface;
A golf club comprising: a second region member that continuously surrounds the first region member from the periphery and has a crystal orientation different from the crystal orientation of the first region member Head face plate. A face plate that is provided as a front plate of a hollow head body of a golf club head and whose front surface is a ball striking surface,
A first region member made of a first metal material and corresponding to a sweet area of the striking surface;
The first metal member is made of a second metal material and surrounds the first region member from the periphery, and the front surface of the first region member is the same as the front surface of the first region member. A face plate for a golf club head, comprising: a second region member installed integrally with the region member. A face plate that is provided as a front plate of a hollow head body of a golf club head and whose front surface is a ball striking surface,
A first region member made of a first metal material, the front surface of which is a central portion corresponding to the sweet area of the striking surface;
The crystalline phase is made of a second metal material having a crystal orientation different from that of the first metal material, and surrounds the first region member from the periphery, and at least its front surface is the first metal material. A face plate of a golf club head, comprising: a second area member integrally installed with the first area member so as to be flush with a front surface of the area member.   4. The face plate of a golf club head according to claim 2, wherein the first metal material and the second metal material are the same type of metal material that is different only in a crystalline phase.   4. The face plate of a golf club head according to claim 2, wherein the first metal material and the second metal material are different metal materials.   The first metal material and the second metal material are each selected from stainless steel, alloy steel, molybdenum, vanadium, zirconium, titanium, aluminum, and magnesium. A golf club head face plate as described.   4. The face plate of a golf club head according to claim 2, wherein a back surface of the first area member protrudes inward from a back surface of the second area member.   The second region member further protrudes from the inner peripheral edge of the back surface in contact with the first region member to the inside, and around the portion protruding to the inside of the first region member. The face plate of a golf club head according to claim 7, further comprising an annular protrusion that surrounds the golf club head.

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