JP2545766B2 - Golf club head - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow golf club head (hereinafter referred to as a head) which is called a so-called metal wood or the like.

[0002]

2. Description of the Related Art Conventionally, a face,
It is known to manufacture a head by a lost wax method, that is, a manufacturing method in which a mold made between molds is melted away from a neck, a sole, etc., and molten metal is poured into them to cast them. In such a lost wax method, although it is possible to precisely cast each surface, it has been impossible to make the thicknesses of the respective surfaces significantly different from each other.

By the way, it is known that the head has a low center of gravity to increase the flight distance of the ball. However, in the head made by the lost wax method, the thickness of each surface can be significantly different. Therefore, the center of gravity cannot be significantly lowered. As a result, there is a problem in that the distance between the oblique face having a predetermined lie angle and the center of gravity cannot be increased, and thus the sweet area cannot be expanded.

As a solution to such a problem,
The publicly Akira 63 over 288 JP-face shell, respectively manufactured by forging a top shell, a sole shell or the like, these shells are integrated by welding or the like, further provided rib-shaped reinforcing member to the interior, the thickness of each shell Applicants have proposed a golf club head that adjusts and integrates.

[0005]

[SUMMARY OF THE INVENTION The real public Akira 63 over 28
In JP-A-8, since the edges of the shells are welded and integrated, there is concern about the connection strength of the shells, and for this reason a reinforcing member is provided inside. However, it is difficult to attach the reinforcing member, and since the reinforcing member is localized, it is feared that the function of reinforcing the entire head is slightly inferior.

In addition, Japanese Utility Model Application No. 57-189075 (actual application)
The microfilm of Sho 59-93565) has a film
Body forming the base surface, the sole surface portion and the side peripheral surface portion, and
And the top surface are pressed in order of decreasing thickness, and these edges are
A fixed golf club head is disclosed.
A right-angled triangular reinforcing member inside a golf club
It is clearly stated that Such a golf club head
The dough has improved strength on the face surface.
It is difficult to attach the reinforcement member, and the reinforcement member is localized.
Yes, it is not always sufficient to reinforce the entire head
Not.

Japanese Patent Application No. 58-73167 (Japanese Utility Model Sho 59-
177473) microfilm, the sole part
, Face part, hosel part, toe part, heel part
And a plurality of ribs formed on the back surface of the face portion and the face
The receiving and bending part formed on the upper surface of the part is integrally molded with metal material
The head body with at least the top wall open and the screws
A columnar body having holes, a plurality of ribs, and the receiving and bending portion.
The joint part to be joined is integrally molded with reinforced synthetic resin,
The head comprises a covering member for covering the opening portion.
Threaded hole of the columnar body of the covering member through the sole portion of the main body
By screwing a set screw to the
A golf club head including a cover member and a cover member is disclosed.
ing. However, this golf club head
Head body made of Straws method and synthetic resin
Integrated with the covering member to form a hollow part
Since it is difficult to install,
The strength of the body is inferior.

Further, in Japanese Utility Model Publication No. 49-7707.
Is made of metal and extends from this neck
The upper surface, the lower surface and the side surfaces that define the outer shape of the main body are defined.
Properly form the ridge line as a metal bone and surround it with the bone
Golf club made by filling and molding a synthetic resin inside the main body
A golf club head is disclosed.
The parts are made of synthetic resin except for the face and bones, so
The strength of the beam head as a whole is inferior.
In addition, since metal bone and synthetic resin are different materials,
The bonding strength of the
Rattling between the metal bone and the synthetic resin filling part
There is a problem.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to facilitate the attachment of a head in which shells such as a face shell, a top shell, and a sole shell are integrated and to improve the strength.

[0010]

The present invention provides a face shell,
Hollow inside with top shell, sole shell, side shell and rear shell
In a hollow golf club head to form part, said
Inside the hollow golf club head, the above-mentioned flap of the hollow portion is
Compartment of ace shell, top shell, sole shell, side shell and rear shell
A frame frame formed of a wire material is provided corresponding to the ridge line, and each of the shells is fixed to the frame frame.

[0011]

With the above construction, the shells forming the head are integrated via the frame, and therefore, the strength can be improved. In addition, the frame frame, before
The face of the hollow portion is provided inside the golf club head.
A ridge that divides the shell, top shell, sole shell, side shell, and rear shell
Since those corresponding to the line, solid with the respective shells to match the this
It is easy to install because it only needs to be worn. Shi
The lie angle may also be specified in advance by the frame.
Therefore, it is possible to simplify the manufacturing itself in this respect as well.
Can be.

[0012]

An embodiment of the present invention will be described below with reference to the drawings. A head body 1 made of aluminum or the like, such as aluminum alloy and stainless steel, has a front face shell 2 obliquely provided with a predetermined lie angle A on the front face, a sole shell 3 on the lower face, and an upper face shell 4 on the upper face.
And the side and rear shells 5 arranged on the left, right, and rear. Further, on the heel 6 side of the head body 1, a cylindrical mounting portion 8 for mounting the shaft 7 is formed. Each of these shells 2, 3, 4, and 5 is manufactured by forging a metal plate, and has a thickness Ta of the sole shell 3, a side surface,
The thickness Tb of the rear shell 5 and the thickness Tc of the upper shell 4 increase in this order (Ta>Tb> Tc). A half-divided portion 8A of the mounting portion 8 is integrally formed on one side of the upper surface shell 4, and a half-divided portion 8B of the mounting portion 8 is integrally formed on one side surface / rear surface shell 5. ing.

Further, a frame frame 11 is provided in the hollow portion 9 of the head body 1. This frame 11 is 1
Two stainless wire, such as 12, 12A, the 12B ... 12K said
The face shell 2, the upper shell 3, the sole shell 4 of the hollow portion 9,
Inside a cube corresponding to the ridgeline that divides the side / rear shell 5
They are connected so as to be arranged at the edge of the empty portion 9 .

Therefore, at the time of manufacturing, the wire 12
On the front surface of the frame frame 11 that is integrally connected with the frame shell 11, the face shell 2 manufactured in advance is provided, and on the lower surface of the frame frame 11, the sole shell 3
The upper shell 4 is welded to the upper surface of the frame 11, and the side and rear shells 5 are welded to the left and right side surfaces and the rear surface of the frame 11. In this way, the shells 2, 3, 4, 5 are integrated through the frame 11, and then the head body 1 is manufactured by performing surface treatment such as polishing. The shaft 7 is inserted and connected to the mounting portion 8 of the head body 1 as described above.

As described above, in the above-described embodiment, the face shell 2, the top shell 3, and the sleeve 3 of the hollow portion 9 of the head body 1 are previously prepared.
The frame frame 11 is formed corresponding to the ridgeline that divides the shell 4, the side surface / rear surface shell 5, and the face shell 2, the sole shell 3, the upper surface shell 4, and the side surface that are manufactured in advance are formed on each surface of the frame frame 11.・
Since the head shell 1 is formed by fixing the rear shell 5, the impact at the time of the shot generated by the face shell 2 is also resisted by the side of the sole shell 3, the upper shell 4, the side surface / rear shell 5 through the frame 11. As a result, the head body 1 having excellent strength such as impact resistance can be provided. Also, the frame
Since 11 improves the strength such as impact resistance, each shell 2,
It is also possible to reduce the thickness of 3, 4, and 5, so that the size of the head main body 1, that is, the head main body 1 having a large hollow portion 9 can be manufactured. In addition, each shell has a frame 11
Just position it according to the corresponding position of
Good, and further, by preliminarily manufacturing the frame 11 to be arranged in the hollow portion 9, the predetermined lie angle A and the like are predetermined, and therefore, the manufacturing itself can be simplified.

The present invention is not limited to the above embodiment, and various modifications such as a metal having a small specific gravity such as aluminum for the upper shell 4 and a metal having a large specific gravity such as copper for the sole shell 3 are possible. It is possible. Further, in the above-described embodiment, the side shell and the rear shell are integrated as the side shell and the rear shell 5, but they may be formed by separate shells.

[0017]

According to the present invention, the face shells, top shells, the sole shell, in an empty golf club head <br/> in forming a hollow portion therein by the side shell and Komenkara, the hollow Gorufuku
Inside the love head, the face shell of the hollow portion, the upper surface
Corresponds to the ridgeline that divides the shell, sole shell, side shell and rear shell
Then, a frame frame formed of a wire rod is provided, and the shells are fixed to the frame frame, and the frame frame can remarkably improve the strength of the head main body.
Moreover, it is easy to attach each shell.

[Brief description of drawings]

1 is a perspective view for showing an embodiment of the present invention.

FIG. 2 is a sectional view showing an embodiment of the present invention.

3 is an exploded perspective view for showing an embodiment of the present invention.

[Explanation of symbols]

1 Head Main Body 2 Face Shell 3 Sole Shell 4 Top Shell 5 Side / Rear Shell 9 Hollow Section 11 Frame Frame

Claims (1)

(57) [Claims] 1. A hollow golf club head in which a hollow portion is formed by a face shell, a top shell, a sole shell, a side shell and a rear shell, wherein the hollow golf club head.
Inside the hollow, the face shell, the top shell, and the sole of the hollow portion
A golf club head, wherein a frame frame formed of a wire material is provided corresponding to a ridgeline that divides a shell, a side shell, and a rear shell, and each shell is fixed to the frame frame.