JP2949689B2 - Golf club set - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a set of golf clubs, and more particularly to a set of golf clubs called iron clubs and a set of golf clubs called composite clubs whose face material is different from that of the head body.

[0002]

2. Description of the Related Art A so-called composite club in which a head member made of stainless steel is attached with a face material made of fiber reinforced resin or titanium alloy, or a head member made of copper alloy is fitted with a face material made of titanium alloy. A set of known. In each of such known sets, the face material is the same in the set.

[0003]

[0005] In the set, there has been no one in which the material of the face material is different. If both the group of long irons (for example, No. 3 to 5) and the group of short irons (for example, No. 9, PW, SW) were made of the same material face material, for example, a face material made of fiber reinforced resin, the long iron would be struck. Although it is easy to run and has a long flight distance, there is a disadvantage that short irons are hard to spin and a ball that stops on the green can not be hit.

[0004] Therefore, an object of the present invention is to provide a golf club set that can faithfully fulfill the role of each count.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a set of nine to eleven or less so-called iron clubs, in which the face material of the head is different from the head body. In a golf club set made of different materials, one or several golf clubs having similar numbers are divided into two or more groups as one group, and the specific gravity of the face material is increased from small to large in order of the group having the small number. It is composed.

[0006]

In the present invention, since the specific gravity of the face material is small in a long iron, the center portion of the head is light, the peripheral portion is heavy, the moment of inertia is large, the ball is easy to hit, and the flight distance is increased. In the middle iron, by providing a face material having a medium specific gravity, the same feeling as that of the conventional non-composite club can be obtained. If the face material has a specific gravity lighter than that of the head body, it becomes easier to hit. Since the short iron uses the face material with the highest specific gravity, the spin rate increases and a ball that stops on the green can be hit.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

In a golf club 1 shown in FIG. 1, a head 2 is composed of a head body 3 and a face material 4, and the face material 4 and the head body 3 are made of different materials, and is called a so-called composite club. is there. In the golf club 1 shown in FIG. 1, a recess 3A is formed in the head body 3, a face material 4 is fitted into the recess 3A, and a screw 5
Thus, the face member 4 is fixed to the head main body 3.
For example, when an iron club set is composed of three irons to nine irons, nine pitching wedges (PW) and nine sand wedges (SW), the head body 3 is formed from a stainless steel material, and the third iron to the fifth iron is used. The specific gravity of the face material 4 of the iron is 2.8.
It is formed of, for example, an aluminum alloy material having a size of less than 4.2. In the golf clubs 1 to 6 iron to 8 iron, the head body 3 is formed of a stainless material, and the face member 4 is formed of, for example, a titanium alloy material having a specific gravity of 4.2 to 8.0. 9th iron to SW golf club 1
The head body 3 is formed from a stainless steel material, and the face member 4 is formed from a brass material having a specific gravity of 8.0 or more. In this example, of the golf club set consisting of nine golf clubs 1, three irons from the 3rd iron to the 5th iron are a group of long irons, and 3 irons from the 6th iron to the 8 irons are a group of middle irons. The three irons below the ninth iron were divided into short iron groups. Of the three groups, the specific gravity of the face material 4 is increased from small to large in the order of the group having the smallest number,
That is, an aluminum alloy, a titanium alloy, and brass are used as the face material 4, respectively.

[0009] The number of iron clubs 1 as a golf club set is not limited to nine, and there are also four or five sets of half-set iron clubs. , You could have 11 sets. Usually, it is a set called 9 to 11 or less iron clubs. Further, the head main bodies 3 of all the iron clubs 1 in the golf club set of 9 to 11 or less need not be formed of the same material. Further, the structure of the head 2 of the iron club 1 may be a so-called cavity back or a hollow structure, and may be a general back flat type.

The head 2 shown in FIG. 2 has a head body 3 in the form of a cavity bag and a face member 4 fitted therein.

The head 2 shown in FIG. 3 shows an example in which a fiber reinforced resin is filled in the head main body 3 as the face material 4.

The head 2 shown in FIG. 4 shows an example in which a face member 4 is fitted to a head body 3, and the back surface of the face member 4 is exposed from a through hole 3 B of the head body 3.

In each of the embodiments described above, the plurality of iron clubs 1 are divided into two or more groups as one group. However, in extreme cases, the face members 4 of all the iron clubs 1 of the plurality of golf club sets are set. Can be formed from a material different from that of the main body 3. Further, as the material of the face member 4, aluminum alloy, titanium alloy, brass, and fiber reinforced resin are exemplified, but a magnesium alloy, a cobalt alloy, or the like can also be used.
In the present invention, one or several golf clubs with similar numbers are divided into two or more groups as one group, and the specific gravity of the face material 4 is increased from small to large in order of the group with the small number.

In the set of nine iron clubs 1 described above, if one group of three iron clubs is used in the sequence, if an aluminum alloy is used as the face material 4 in the group of long irons, the center portion is light and the peripheral portion is light. The weight increases the moment of inertia, which makes it easier to hit and increases the flight distance. In the group of 6 irons to 8 irons, that is, in the group of middle irons, since the titanium material is used as the face material 4, the center portion is slightly lighter and can be hit with the same feeling as a conventional middle iron. . In addition, since a light and specific strength titanium alloy is used as the face material 4, an increase in flight distance can be expected. The three groups of SW from 9th iron to SW, that is, the group of short irons, use brass as the face material 4, so that the surface is soft and the center part is heavy, so that the effect of increasing the spin and the ball that stops on the green can be hit. .

[0015]

As described above, according to the present invention, one or several golf clubs having close numbers are divided into two or more groups as one group, and the specific gravity of the face material is determined from the group having the lowest number. Is designed to be small to large, so that the function of each count can be fully exhibited, and it is easy to hit with long irons, and with short irons, it is possible to hit the ball that increases spin and stops on the green Becomes

[Brief description of the drawings]

FIG. 1 is a perspective view before a face material is attached to a head main body.

FIG. 2 is a cross-sectional view of a head fitted with a face material.

FIG. 3 is a partially broken perspective view.

FIG. 4 is a perspective view before a face member is fitted to a head main body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Iron club 2 Head 3 Head main body 4 Face material

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A63B 53/00 A63B 53/04

Claims (1)

(57) [Claims] 1. A golf club set comprising nine to eleven or less so-called iron clubs, wherein the face material of the head is made of a material different from that of the head body. A golf club set characterized in that the golf clubs having close proximity are divided into two or more groups as one group, and the specific gravity of the face material is increased from small to large in order of group having the smallest number.