JP2591266Y2 - Metal hollow golf 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 metal head of wood type or iron type.

[0002]

2. Description of the Related Art Hollow golf heads are generally used in wood type clubs and iron type clubs, and are made of stainless steel, titanium and its alloys, aluminum and its alloys, copper alloy, iron manganese alloy, carbon fiber reinforced plastic and the like. Widely made as.

As shown in FIG. 8 , this hollow golf head is composed of two parts, an upper body part 11 and a sole part 12. These two parts are manufactured by casting, forging, etc. The portion indicated by reference numeral 13 is welded and joined.

In recent years, a titanium alloy,
2. Description of the Related Art A golf head in which a member lighter than a main body such as an aluminum alloy and a carbon fiber reinforced plastic is joined is known. In such a golf head, it is known that the moment of inertia at the time of hitting the ball increases, and the directionality of the hit ball is improved.

[0005]

In the conventional hollow golf head shown in FIG. 8, when a member lighter than the main body is to be mounted on the face surface 11a, a mold is inserted from the opening of the sole portion 12. Face 1
For example, a method in which the member 1a is sandwiched between metal molds and a member is press-fitted cannot be adopted.

For this reason, in the conventional hollow golf head,
When a member lighter than the main body is to be attached to the face surface 11a, a concave portion is formed in the face surface 11a, and an organic material such as carbon fiber reinforced plastic is integrally formed therewith, or an organic material, lightweight metal, ceramics, or the like is formed. Or made of plates.

[0007] However, the above-described golf head has a drawback in that the face surface peels off or is easily damaged during use.

Accordingly, an object of the present invention is to provide a metal hollow golf head in which a member made of a different material can be press-fitted and fitted to the face surface.

[0009]

In order to achieve the above object, one of the metallic hollow golf heads of the present invention is formed of a part constituting a face surface and a part constituting other parts. for two parts are integrated by welding
And an outer periphery of the face surface is formed on the face surface.
Metal members of different materials that are lighter than the metal
Vignetting wherein the are.

Another one of the metal hollow golf heads according to the present invention is formed of a part constituting a face surface and a neck part and a part constituting other parts, and these two parts are welded and integrated. And the said
Lighter than the metal that makes up the perimeter of the face
It is characterized in that metal members of different materials are fitted and mounted .

[0011]

The metal hollow golf head of the present invention comprises two parts, a part constituting the face surface and a part constituting the other part, or a part constituting the face surface and the neck part and other parts. 3 to 5 , for example, as shown in FIGS. 3 to 5 , a metal member made of a different material is applied to the outside and the inside of the face surface by using a metal mold. By pressing
It is possible to press-fit and fit into holes or recesses formed in advance on the face surface.

As described above, since a metal member of a different material can be attached to the face surface, scratches are less likely to occur than when an organic material such as carbon fiber reinforced plastic is used, and the metal member is press-fitted. Since it can be attached by fitting, there is no danger that the face surface will peel off during use.

[0013] Then, a metal member of a different material lighter than the metal constituting the outer periphery of the face surface is attached to the face surface.
By doing , the moment of inertia at the time of hitting ball increases,
The direction of the hit ball can be improved. Further, since the face becomes lighter, the position of the center of gravity of the head is far away from the face surface, the depth of the center of gravity of the head itself is deepened, and the so-called gear effect is increased even for a hit ball deviating from the sweet spot, thereby improving the directionality. Furthermore, various combinations of heavy metals and light metals can produce various hitting sensations and hitting sounds.

On the other hand, the conventional hollow golf head shown in FIG. 8 is composed of two parts, the upper surface main body 11 and the sole 12, so that it is necessary to make a head having a different face orientation angle and loft angle. It was necessary to prepare a mold corresponding to each.

However, in one of the present inventions, when a golf head is composed of two parts, a part constituting the face surface and a part constituting the other part, when the two parts are welded, the face orientation is changed. The angle and loft angle can be varied within a certain range. This has the additional advantage that heads with different loft angles can be manufactured in the same mold.

[0016]

FIG. 1 shows another embodiment of the hollow golf head according to the present invention. In the figure, (a) is a perspective view, and (b) is a sectional view. This golf head 41
It is composed of a part 42 constituting the face surface and a part 43 constituting the other parts. The component 42 constituting the face surface includes a frame 44 having a through hole in the center,
The frame 44 includes a lightweight metal member 45 fitted into the through hole. In addition, the component 43 constituting the other part forms a neck, a back, a sole, and the like. And it is manufactured by covering the opening of the component 43 constituting the other part with the component 42 constituting the face surface and welding the joint 46.

In the case of this embodiment, the frame 44 of the part 42 constituting the face surface and the part 43 constituting the other parts are made of, for example, stainless steel, copper alloy, manganese iron alloy.
The lightweight metal member 45 formed of a heavy metal such as gold and fitted into the frame 44 includes, for example, titanium and its alloy,
It is formed of a light metal such as aluminum and its alloys . Thereby, the effect of improving the directionality of the hit ball as described above and the effect of being able to create various hit feelings and hitting sounds are obtained.

[0018] Figure 2 is another example of parts constituting the face to be applied to a hollow golf head of Figure 1 is shown. That is, the component 47 constituting the face surface is
It comprises a frame 48 having a recess in the center of the outer surface, and a lightweight metal member 49 fitted in the recess of the frame 48. Also in this case, the frame 48 is formed of a heavy metal, and the lightweight metal member 49 is formed of a light metal.

[0019] In FIGS. 3-5, a hollow golf head 4 in FIG. 1
A device for fitting a lightweight metal member 45 to one frame 44 is shown. Apparatus shown in Figure 3, the lower die 51
The lightweight metal member 45 is inserted into the through-hole portion 44a at the center of the frame 44, and the lightweight metal member 45 is pressurized by the upper mold 52. It is adapted to be fitted to the portion 44a.

In this case, the through-hole portion 44a of the frame 44
A rib 44b for receiving the lightweight metal member 45 is formed on the lower edge of the inner periphery thereof, and the inner periphery 44c
Has an inverted taper (antagonal angle). When the lightweight metal member 45 is inserted and placed in the through-hole portion 44a, the lightweight metal member 45 slightly projects from the outer surface of the frame 44.

In this state, when the lightweight metal member 45 is pressed by the upper mold 52, the lightweight metal member 45 is
Is plastically deformed so as to conform to the shape of the inner circumference 44c. That is, it deforms so as to spread toward the bottom along the inverse taper (ant dovetail) of the inner circumference 44c. As a result, the lightweight metal member 45 cannot escape from the through-hole portion 44a, and is completely integrated and fixed to the frame 44. The outer surface of the lightweight metal member 45 is substantially flush with the outer surface of the frame 44.

The apparatus shown in FIG. 4 is basically the same as the apparatus shown in FIG. 3 , except that a ridge 52a is formed parallel to the pressing surface of the upper mold 52, and the upper mold 52 is formed. When the lightweight metal member 45 is pressurized, a face line is formed. In addition to the face line, patterns and characters can be imprinted simultaneously with pressing. Further, when pressure is applied by the upper mold 52, the frame 44 may be deformed. Therefore, a pad 53 for receiving the outer peripheral portion of the frame 44 is provided.

The apparatus shown in FIG. 5 is also basically the same as the apparatus shown in FIGS. 3 and 4 , except that the upper mold 52 is used to prevent deformation of the frame 44 when pressed by the upper mold 52. 5
2 and the peripheral portion 51a of the lower mold 51
Further, a guide surface for receiving the outer peripheral shape of the frame 44 is provided.

Since the face face is usually provided with a face round, the lightweight metal member 45 is formed in a flat plate shape, and when this is pressed to be plastically deformed,
The upper mold 52 and the lower mold 51 can be rounded in accordance with the round of the face surface, and a face round that is flush with the face round of the frame 44 can be formed by pressing. . Of course, a face round or a face line may be added to the lightweight metal member 45 in advance.

FIG. 6 shows another embodiment of the hollow golf head according to the present invention. This golf head 6
1 is a component 62 constituting a face surface and a neck portion;
And a part 63 constituting other parts.
The component 62 constituting the face surface and the neck portion includes a frame 64 forming the neck portion and the outer periphery of the face surface, and the lightweight metal member 6 fitted on the face surface of the frame 64.
5 is comprised. In addition, the component 63 that constitutes the other part forms a back, a sole, and the like. It is manufactured by assembling a part 62 forming the face surface and the neck part and a part 63 forming the other part, and welding the joint part 66 thereof. Note that the same method as described above is employed for fitting the lightweight metal member 66 to the frame 64.

The golf head 6 1 of this embodiment, a so-called face progression is small, is suitable when it is difficult to separate the face portion and the neck portion. Further, by setting the joining portion 66 at a position where the cross-sectional area of the opening is largest, the undercut portion of the mold is completely eliminated or is limited to a very small portion. The simplification can be greatly simplified, and the side effect that the cost of the mold can be reduced can be brought about.

FIG. 7 shows still another embodiment in which the present invention is applied to a golf head having a shape close to an iron type. That is, the golf head 91 includes a part 92 which constitutes a full Esu surface, is composed of a part 93 which constitutes the other part, part 92 constituting the face surface,
It comprises a frame 94 and a lightweight metal member 95 fitted thereto. The component 92 forming the face surface and the component 93 forming the other portion are manufactured by welding at the joint 96.

As described above, the hollow golf head of the present invention can be applied to an iron-type golf head or a golf head having a similar shape.

[0029]

[Effects of the Invention] As described above, according to the present invention,
Because it is composed of two parts, a part constituting the face surface and a part constituting the other part, or a part constituting the face surface and the neck part and a part constituting the other part, It is possible to press-fit, fit, and attach a lightweight metal member of a different material. Therefore, there is no fear that the member made of a different material attached to the face surface during use is easily scratched or peeled off. Also,
By attaching a member of a different material to the face surface, an effect of improving the directionality of the hit ball and an effect of creating various hit feelings and hitting sounds can be obtained. Furthermore, when a golf head is composed of two parts, a part constituting the face surface and a part constituting the other part, the face direction angle and the loft angle must be changed within a certain range when welding the two parts. And the advantage that heads having different loft angles can be manufactured by the same mold.

[Brief description of the drawings]

FIG. 1 is a view showing one embodiment of a hollow golf head according to the present invention, wherein (a) is a perspective view and (b) is a sectional view.

Is a cross-sectional view showing another example of members constituting the face of the hollow golf head in FIG. 1;

FIG. 3 is an explanatory view showing an example of an apparatus for fitting a lightweight metal member to a frame of a member constituting a face surface of a hollow golf head.

FIG. 4 is an explanatory view showing another example of a device for fitting a lightweight metal member to a frame of a member constituting a face surface of a hollow golf head.

FIG. 5 is an explanatory view showing still another example of an apparatus for fitting a lightweight metal member to a frame of a member constituting a face surface of a hollow golf head.

FIG. 6 is a perspective view showing still another embodiment of the hollow golf head according to the present invention.

FIG. 7 is a perspective view showing another embodiment of the hollow golf head according to the present invention.

FIG. 8 is a sectional view showing an example of a conventional hollow golf head.

[Explanation of symbols]

 41, 61, 91: hollow golf heads 42, 92: members constituting the face surface 43, 93: members constituting other portions 62: members constituting the face surface and neck 63: members constituting other portions 46, 66, 96 ... joints 44, 64, 94 ... frames 45, 65, 95 ... lightweight metal members

Claims (2)

(57) [Scope of request for utility model registration] And 1. A part constituting the face, is formed by the parts constituting the other portions, these two components are integrated by welding, and, on the face, off
Gold of a different material that is lighter than the metal
A metal hollow golf head, wherein a metal member is fitted and attached . And a part forming the face surface and the neck part and a part forming the other part. These two parts are welded and integrated , and
Lighter than the metal that makes up the perimeter of the face
A hollow metal golf head , wherein metal members of different materials are fitted and mounted .