JPH07406U - Golf club head - Google Patents

Abstract

(57) [Summary] [Purpose] Achieves mechanical strength and enables a wide range of designs. [Structure] A club face (11), a crown portion (12), a sole portion (13), a back surface portion (14), a neck portion (15), and other club heads (10) that are composed of details such as
(11), the central part of the sole part (13), the central part of the back part (14), and both sides of the crown part (12) are formed by one metal reinforced plate (20), and the other parts On the other hand, a carbon fiber reinforced composite resin material is formed, and the peripheral edges of both boundaries are mutually joined with an adhesive or the like.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a golf club head, and more particularly to a club head in which a metal reinforced plate is formed in place of a carbon fiber reinforced composite resin material (CFRP) at a necessary portion.

[0002]

[Prior art]

 A conventional golf club head generally has a structure in which a main body Q is uniformly covered with a single material S 1 as shown in FIG. The one using CFRP as a single material is lightweight and can be designed in a wide range because the volume occupied by the head can be arbitrarily changed. In addition to this, the one using a stainless steel plate as a single material has advantages that it is hard and has excellent mechanical strength, a good shot feeling, and a low manufacturing cost.

[0003]

[Problems to be solved by the device]

 However, those made of CFRP are vulnerable to impact and are prone to rupture and wear, and those made of stainless steel plate have a large specific gravity, so only a club head with a relatively small volume can be manufactured. However, it is not possible to obtain an ideal club head because it is limited in volume.

The present invention has been made in order to solve the above-mentioned problems, and it is necessary to form a metal reinforced plate in place of CFRP for a portion requiring mechanical strength. An object of the present invention is to provide a golf club head which has a mechanical strength and can be designed in a wide range.

[0005]

[Means for Solving the Problems]

 The present invention relates to a club head (10) comprising details such as a club face (11), a crown portion (12), a sole portion (13), a back portion (14) and a neck portion (15). ), The central part of the sole part (13), the central part of the back part (14), and both sides of the crown part (12) are formed by one metal reinforced plate (20), and the other parts are formed. On the other hand, a carbon fiber reinforced composite resin material is formed, and the peripheral edges of both boundaries are mutually joined with an adhesive or the like.

[0006]

[Action]

 According to the above configuration, the club face (11), the central portion of the sole portion (13), the central portion of the back surface portion (14), and the both sides of the crown portion (12), etc., where mechanical strength is required. On the other hand, by forming a metal reinforced plate instead of CFRP, the necessary mechanical strength can be obtained, and the weight can be reduced compared to the case where only the metal reinforced plate is formed. Since the size can be increased, a wide range of designs is possible.

Further, as described in claim 2, the position of the center of gravity of the head can be arbitrarily changed by changing the forming position or the width of the metal reinforcing plate (20), and a wider design is possible. Become.

As the metal-reinforced plate (20), as described in claim 3, a stainless steel plate is preferable.

[0009]

【Example】

 1 to 5 show a club head 10 according to an embodiment of the present invention. In the perspective view of FIG. 1, the left side and the right side of the drawing are referred to as the front and the rear, respectively, the front side of the drawing is referred to as the left side, and the opposite side is referred to as the right side. In a club head 10 including details such as a club face 11, a crown portion 12, a sole portion 13, a back surface portion 14 and a neck portion 15, a club face 11, a central portion of the sole portion 13, a central portion of the back surface portion 14, and a crown portion Stainless steel plates 20 are formed as metal reinforcing plates on both sides of the portion 12.

More specifically, as shown in the side view of FIG. 2, the stainless steel plate 20 extends upward from the club face 11 to reach the left side of the crown portion 12, from which the top view of FIG. As shown, a semicircular small arc 21 is formed toward the center of the crown 12 so as to cover a part of the left side of the crown 12 from above. In addition, in the club face 11, the stainless steel plate 20 has a width that becomes smaller as it goes downward, and the stainless steel plate 20 has a substantially constant width as shown in the bottom view of FIG. Further, a relatively large semicircular arc 23 is formed so as to rise up on the back surface portion 14 and cover the right central portion of the crown portion 12.

Other than the portion where the stainless steel plate 20 is formed in this way, the neck portion 15, the central portion substantially along the ridgeline of the crown portion 12, the front and rear portions of the sole portion 13, and the front and rear portions of the rear surface portion 14. For the rear part, all form CFRP. FIG. 5 shows a sectional view.

A manufacturing example of the club head having the above structure will be described below. First, the stainless steel plate 20 is cut into a predetermined shape by precision casting, and then bent into a predetermined shape. Next, the peripheral edge joined to the CFRP is surface-treated by sandblasting to improve the adhesion of the adhesive. Then, the pre-impregnated material of CFRP is charged into the space formed by the stainless steel plate 20, placed in the die as it is, heated and pressurized for a predetermined time, and a gas is blown so as to expand, The stainless steel plate 20 and CFRP are integrally formed, cooled, and then taken out from the die to obtain a semi-finished club head. The club head of the present invention is completed by polishing, finishing, and painting the semi-finished product.

[0013]

[Effect of device]

 As described above, according to the present invention, since the metal reinforced plate such as the stainless steel plate is formed on the required portion of the club head, the required mechanical strength can be maintained, and the rupture and wear due to impact can be prevented. . Since CFRP with a small specific gravity is formed for the other parts, the volume of the club head can be increased accordingly, and the position of the metal reinforcing plate with a large specific gravity can be shifted back and forth, or the width can be changed appropriately. By doing so, the position of the center of gravity of the club head can be arbitrarily set, and a wide range of designs is possible.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a club head according to the present invention.

FIG. 2 is a side view of the club head of FIG.

FIG. 3 is a top view of the club head of FIG.

FIG. 4 is a bottom view of the club head of FIG.

5 is a cross-sectional view of the club head of FIG.

FIG. 6 is a sectional view of a conventional club head formed of a single material.

[Explanation of symbols]

 11 Club Face 12 Crown 13 Sole 14 Back 15 Neck 20 Stainless Steel Plate

Claims (3)

[Scope of utility model registration request] 1. A club face (11) comprising a club face (11), a crown portion (12), a sole portion (13), a back portion (14), a neck portion (15) and other details. ), The central portion of the sole portion (13), the central portion of the back surface portion (14), and both sides of the crown portion (12),
It is formed by one sheet of metal reinforced plate (20), carbon fiber reinforced composite resin material is formed on other parts, and both peripheral edges are joined to each other with an adhesive or the like. Club head. 2. The golf club head according to claim 1, wherein a desired center of gravity is obtained by changing a forming position or a width of the metal reinforcing plate (20). 3. The golf club head according to claim 1, wherein a stainless steel plate is used as the metal reinforcing plate (20).