JPH0810361A - Golf club head and its manufacture - Google Patents

Abstract

PURPOSE:To improve the resistance of a face shell part by surely mounting a reinforcing member to be fixed along a face. CONSTITUTION:A body sheath part 5 formed of a face 3, a side circumferential surface 4, and an upper surface 2 is integrally connected to a sole shell part 6. The lower end 9 of a reinforcing member 7 vertically fixed along the inside of the face 3 is exposed to the sole shell part 6, and connected. Thus, the lower end 9 of the reinforcing member 7 can be surely welded to surely reinforce the face 3.

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 called a metal wood club (hereinafter referred to as a head) and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, as this kind of product, the utility model Sho 63
The golf club head disclosed in FIG. 289 of FIG. 289 and FIG. 1 of Jpn. Pat. Appln. KOKAI Publication No. 2-41004 has a face shell part, a side peripheral surface and a sole shell part, an upper surface in which a head having a predetermined shape is manufactured in advance. The shell is integrally joined to form a hollow head, and the vertical rod of the L-shaped reinforcing member disposed inside the face is attached to the face, and the horizontal rod is attached to the sole. . By providing the head with the reinforcing member in this manner, the strength of the face shell portion at the time of a shot can be improved.

[0003]

In the prior art,
For the reinforcing member, for example, the horizontal rod portion is previously fixed to the sole using a jig, then the face shell portion is fixed in a state where the face is attached to the vertical rod portion, and further the upper surface shell portion is fixed. Therefore, not only is it difficult to weld the reinforcing member, but it is feared that the strength will be reduced due to poor welding.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above problem and to improve the attachment strength of the reinforcing member in the head in which the reinforcing member is vertically installed and attached inside the face. Another object of the present invention is to improve the attachment strength of the reinforcing member in a method of manufacturing a head in which a reinforcing member is vertically provided and attached to the inside of the face.

[0005]

According to a first aspect of the present invention, a main body shell portion having a face, a side peripheral surface and an upper surface and a sole shell portion are integrally connected to each other and are vertically installed inside the face. In the golf club head, the lower end of the reinforcing member attached to the sole shell portion is shown.

According to a second aspect of the present invention, a main body shell portion which forms a face, a side peripheral surface, and an upper surface and has a sole opened, a sole shell portion which closes the opening, and a longitudinally provided inside the face. A method for manufacturing a golf club head having a reinforcing member attached thereto, wherein the lower end side of the reinforcing member is welded to the main body shell part together with the sole shell part in a state of protruding downward from the sole. Then, a method of manufacturing a golf club head, in which a protruding portion of the reinforcing member protruding from the sole shell is removed.

According to a third aspect of the present invention, the main body shell portion having the face, the side peripheral surface and the sole and the upper surface shell portion are integrally connected to each other, and the reinforcement is vertically installed and attached inside the face. In the golf club head, the upper end of the member is connected to the upper shell.

According to a fourth aspect of the present invention, there is provided a main body shell portion having a face, a side peripheral surface, and a sole and having an upper surface opened, an upper surface shell portion closing the opening, and vertically provided inside the face. A method of manufacturing a golf club head having a reinforcing member attached thereto, the upper end of the reinforcing member protruding upward from the upper shell together with the upper shell,
A method of manufacturing a golf club head, in which a protruding portion of the reinforcing member protruding from the upper shell is removed after welding to the main shell.

[0009]

With the structure of the first aspect, the lower end side of the reinforcing member can be firmly fixed to the sole side of the head to firmly provide the reinforcing member.

With the structure according to the second aspect, the lower end of the reinforcing member can be welded to the sole side of the head, and the reinforcing member can be provided easily and firmly.

According to the structure of the third aspect, the reinforcing member can be firmly provided by fixing the upper end side of the reinforcing member to the upper shell side.

With the structure according to the fourth aspect, the upper end of the reinforcing member can be welded to the upper shell side of the head, and the reinforcing member can be provided easily and firmly.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 1 to 3, the head 1 is separately formed in advance, and has an upper surface 2, a face 3, and a side peripheral surface 4.
The main body shell portion 5 integrally formed with and the edge portion of the sole shell portion 6 are welded and integrated. The main body shell portion 5 and the sole shell portion 6 are made of, for example, titanium or titanium alloy by casting, and the thickness of each portion is the same on the upper surface 2 (thickness A) and the side peripheral surface 4 (thickness B). , The sole shell 6 (thickness C) and the face 3 (thickness D) in this order (A, B
<C <D) is formed thick. The main body shell 5
The sole shell 6 can close the bottom opening 5A.

The prismatic reinforcing members 7 attached to the right and left sides of the face 3 in the shape of ribs are made of, for example, titanium or titanium alloy, and their upper ends 8 are abutted against the inner front edge of the upper face 2. At the same time, it is fixed by the welded portion 10A in such a state that the lower end 9 appears from the notch 10 formed at the front edge of the sole shell portion 6. A neck 12 for connecting the shaft 11 is formed on the main body shell portion 5.

Next, a method of manufacturing the head 1 will be described. As shown in FIG. 4, a hollow main body shell portion 5, a sole shell portion 6, and a slightly long reinforcing member 7 are manufactured. Next, as shown in FIG. 5, the upper end 8 of the reinforcing member 7 is abutted against the inside of the upper surface 2, and the reinforcing member 7 is fixed to the inner surface of the face 3 by the welded portion 3A. Then, as shown in FIG. 6, the sole shell portion 6 is coupled so as to close the bottom opening 5A and is fixed by the weld portion 10A. At this time, the lower end 9 side of the reinforcing member 7 is slightly protruded downward through the notch 10. Next, the protruding portion 9A protruding from the sole shell 6 of the reinforcing member 7 is removed by cutting, polishing or the like,
The lower end 9 is formed in the same plane as the sole shell 6.

As described above, in the above embodiment, the face 3
The main body shell portion 5 having the side peripheral surface 4 and the upper surface 2 and the sole shell portion 6 are integrally combined, and the lower end 9 of the reinforcing member 7 which is vertically installed inside the face 3 is attached to the sole. Since the lower end 9 of the reinforcing member 7 can be surely welded by being joined to the shell portion 6, that is, the face 3 can be surely reinforced, the thickness D of the face 3 can be reduced and its weight is reduced. It is possible to enlarge the sweet area by increasing the volume of.

When the main body shell portion 5 and the sole shell portion 6 are joined together with the reinforcing member 7, the sole shell portion 6 is provided with the lower end 9 side of the reinforcing member 7 protruding downward from the sole shell portion 6. At the same time, the lower end 9 is welded from the outside to surely form the welded portion 10A, and thereafter the protruding portion 9A of the reinforcing member 7 protruding from the sole shell portion 6 is removed to manufacture the head 1. Therefore, since the lower end 9 of the reinforcing member 7 can be reliably welded, that is, the face 3 can be reliably reinforced, the thickness D of the face 3 can be reduced, and the weight thereof is reduced to increase the volume of the head 1 to increase the sweet area. Can be increased.

Further, since the main body shell 5, the sole shell 6, and the reinforcing member 7 are made of titanium or titanium alloy having a small specific gravity, the volume of the head 1 is increased without increasing the weight and the sweet area is wide. It is possible to provide the head 1 having excellent effects.

Next, a second embodiment of the present invention will be described with reference to FIGS. 8 and 9. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in FIG. 8, the head 1X includes a face 3, a side peripheral surface 4, and a sole 6
The upper end 8X of the reinforcing member 7X is formed by vertically connecting the main body shell portion 5X having the upper surface opening 2Y and the upper shell portion 2X integrally formed with each other, and is vertically installed inside the face 3.
Is connected to the upper shell 2X through a notch 10X.

As shown in FIG. 9, the manufacturing method of the head 1X is a main body shell portion 5X made by casting formed in the hollow.
The upper shell 2X and the slightly longer reinforcing member 7X are manufactured. Next, the lower end 9X of the reinforcing member 7X is abutted against the inner side of the sole 6X, and the reinforcing member 7X is fixed to the inner surface of the face 3 by the welded portion 3A. And the upper shell 2X
Are joined by welding so as to close the upper surface opening 2Y. At this time, a cutout 10X is formed on the upper end 8X side of the reinforcing member 7X.
It is slightly protruded upward through and is fixed by the welded portion 10Y. Next, a protruding portion 8Y, which is indicated by a chain double-dashed line in FIG.
Is removed by cutting, polishing, etc., and the upper end 8 is the upper shell 2X
And the same plane.

As described above, in the above embodiment, the face 3
The main body shell portion 1X having the side peripheral surface 4 and the sole 6X and the upper surface shell portion 2X are integrally joined, and the upper end 8X of the reinforcing member 7X vertically attached inside the face 3 is attached to the upper surface. The reinforcing member 7 is formed by connecting to the shell portion 2X.
Since the upper end 8X of X can be reliably welded, that is, the face 3 can be reliably reinforced, the thickness of the face 3 can be reduced, and the weight of the face 3 can be reduced to increase the volume of the head 1X and increase the sweet area. .

Further, the face 3, the side surface 4, the sole 6
Body shell 1X having X formed and opening 2X on the upper surface
And a reinforcing member 7X that is vertically installed inside the face 3 and attached to the upper surface 8X of the reinforcing member 7X.
After being welded to the main body shell portion 1X together with the upper shell portion 2X in a state of projecting upward from the upper shell portion 2X, the reinforcing member 7X is removed by removing the protruding portion 8Y of the reinforcing member 7X that is projected from the upper shell portion 2X. Since the upper end 8X of can be reliably welded,
That is, since the face 3 can be reliably reinforced, the thickness of the face 3 can be reduced and the weight thereof is reduced.
It is possible to enlarge the sweet area by increasing the volume of.

Incidentally, the present invention is not limited to the above-mentioned embodiment, but in the embodiment, for example, two reinforcing members are shown, but various modifications such as one or three or more are possible. . In the first and second embodiments, the main body shell portion and the sole shell portion are shown as being divided into two parts, but the face shell portion, the side peripheral surface,
3 parts like sole shell, top shell, face shell,
You may integrate four components, such as a side surface shell part, a sole shell part, and an upper surface shell part.

[0024]

According to the first aspect of the present invention, the main body shell portion having the face, the side peripheral surface and the upper surface and the sole shell portion are integrally connected and vertically attached to the inside of the face. By connecting the lower end of the reinforcing member to the sole shell so as to be coupled thereto, the lower end of the reinforcing member can be reliably welded, and a golf club head that improves the strength of the face provided with the reinforcing member can be provided.

According to a second aspect of the present invention, a main body shell portion that forms a face, a side peripheral surface, and an upper surface and has a sole opening, a sole shell portion that closes the opening, and the sole shell portion are provided vertically inside the face. A method for manufacturing a golf club head having a reinforcing member attached thereto, wherein the lower end side of the reinforcing member is welded to the main body shell part together with the sole shell part in a state of protruding downward from the sole. After that, by removing the protruding portion of the reinforcing member protruding from the sole shell,
Since the lower end of the reinforcing member can be surely welded, the reinforcing member can be provided easily and surely.

According to a third aspect of the present invention, the main body shell portion having the face, the side peripheral surface, and the sole and the upper shell portion are integrally connected, and the reinforcement is vertically installed and attached inside the face. Since the upper end of the member is connected to the upper surface shell portion so as to be coupled, the lower end of the reinforcing member can be surely welded, and the golf club head that improves the strength of the face provided with the reinforcing member can be provided.

According to a fourth aspect of the present invention, a main body shell portion that forms a face, a side peripheral surface, and a sole and has an upper surface opened, an upper surface shell portion that closes the opening, and the main body shell portion are provided vertically inside the face. A method of manufacturing a golf club head having a reinforcing member attached thereto, the upper end of the reinforcing member protruding upward from the upper shell together with the upper shell,
After welding to the main body shell portion, by removing the protruding portion of the reinforcing member protruding from the upper shell portion, the lower end of the reinforcing member can be reliably welded, so that the reinforcing member can be provided easily and surely. You can

[Brief description of drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a first embodiment of the present invention.

FIG. 3 is a bottom view showing the first embodiment of the present invention.

FIG. 4 is an exploded perspective view showing the first embodiment of the present invention.

FIG. 5 is a sectional view of a first step showing the first embodiment of the present invention.

FIG. 6 is a sectional view of a second step showing the first embodiment of the present invention.

FIG. 7 is a sectional view showing a second embodiment of the present invention.

FIG. 8 is an exploded perspective view showing a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1X Head 2 Upper surface 2X Upper surface shell 2Y Upper surface opening 3 Face 4 Side peripheral surface 5 Main body shell 5A Bottom opening 5X Main body shell 6 Sole shell 6X Sole 7 7X Reinforcing member 8 8X Upper end 9 9X Lower end 9A 8Y Projecting part

Claims (4)

[Claims] 1. A sole shell, which integrally joins a main body shell portion having a face, a side peripheral surface, and an upper surface and a sole shell portion, is vertically attached to the inside of the face, and the lower end of a reinforcing member is attached to the sole shell. A golf club head characterized in that it is joined as shown. 2. A main body shell portion that forms a face, a side peripheral surface, and an upper surface and has a sole opened, a sole shell portion that closes the opening, and a reinforcing member that is vertically installed and attached to the inside of the face. A method for manufacturing a golf club head comprising: a reinforcing member, the lower end side of which is protruded downward from the sole together with the sole shell portion, after being welded to the main body shell portion; A method for manufacturing a golf club head, characterized in that a protruding portion of the reinforcing member that is projecting is removed. 3. A body shell portion having a face, a side peripheral surface, and a sole formed integrally with an upper shell portion, and the upper end of a reinforcing member vertically installed inside the face is attached to the upper shell. A golf club head characterized in that it is joined as shown. 4. A main body shell portion which forms a face, a side peripheral surface and a sole and has an upper surface opened, an upper surface shell portion which closes the opening, and a reinforcing member which is vertically installed and attached inside the face. A method of manufacturing a golf club head comprising:
After welding the upper end of the reinforcing member to the main body shell together with the upper shell in a state where the upper end projects from the upper shell, the protruding portion of the reinforcing member protruding from the upper shell is removed. A method for manufacturing a golf club head, comprising: