JP2901876B2 - Iron 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 an iron club head.

[0002]

2. Description of the Related Art With respect to golf clubs, the shape, structure and material of golf clubs are determined, and the performance of golf clubs is essentially determined to be incompatible with traditions and customs. Therefore, it is required to have a good hitting distance and a good hitting direction.In an iron club, hit the ball at various hitting positions and hit the ball as closely as the player intends. A plurality of clubs are provided so as to obtain a predetermined trajectory (ball trace of a flying ball) and a flight distance when a player hits the ball with a predetermined swing, if the club is capable of being stopped. There are mainly provided clubs that are intentionally set in accordance with the club length, weight, swing balance, and the like.

Means for adjusting the weight, swing balance and the like of the iron club are usually called back cavities in which the back portion of the head is recessed, and the thickness or the like in the recess is changed to change the position of the center of gravity or the like. Various means have been taken, such as one in which the weight balance of the head is adjusted, and one in which the weight balance can be adjusted by changing the thickness of the toe or heel of the head by means such as forging. In some cases, the player adjusts the weight balance of the head by attaching a lead plate to the back portion of the head or making a hole in the head.

A number of proposals have been made on means for adjusting the weight balance of the head by making a hole in the head. For example, for example, there has been proposed a device disclosed in Japanese Utility Model Laid-Open Publication No. Sho 61-133070, 52-
No. 10998 and the invention of Japanese Patent Application Laid-Open No. 52-72641 have been proposed. In each of these inventions, a through-hole is provided which opens from the sole surface of the head toward the back surface.

[0005]

However, there has been a case where it is difficult to finely adjust the weight simply by opening a hole from the sole portion surface to the rear portion and opening the hole to the rear portion. Adjusting the weight of the head is not perfect just by making a hole in the surface of the sole portion, and there is a case where fine adjustment of the overall weight is required by processing the toe portion, the top portion, and the heel portion. Therefore, for example, Japanese Utility Model Publication No. Sho 53-288 has been proposed. However, in this invention, the weight of the head is adjusted by cutting the back surface of the head to make it thinner or adding a metal different from the head body. However, when the ball is hit, the back surface of the head becomes extremely uneven, and a foreign material is mixed in the back surface. Therefore, there is a problem that the gloss and the like of the back surface are different and addressing is difficult.

[0006]

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a space portion formed by forming a frame on the back surface of an iron club head along an outer edge of the back surface, and recessing an internal region formed by the frame portion. By forming a through-hole opening in the space formed by the frame portion in the frame portion, the surface of the back surface of the iron club head is free from irregularities and foreign substances, and Like an iron club head,
An object of the present invention is to solve the problem that the back surface has a different gloss or the like and it is difficult to address.

The through-hole penetrating the frame portion can be formed at any position such as a top portion, a toe portion, a sole portion, and a heel portion of the rear frame portion. Parts, or the sole part and the heel, or any combination as needed, and the shape can be formed to be long and short freely, or can be formed to be wide and narrow freely,
Formed in parallel with the ball striking surface, or formed in parallel with multiple balls, or inclined so that the distance between the ball striking surface and the opening on the inner surface of the frame is larger than the distance between the ball striking surface and the opening on the surface of the frame. Or opening with an inclination so that the distance between the ball striking surface and the opening on the inner surface of the frame is smaller than the distance between the ball striking surface and the opening on the surface of the frame, or The opening area is inclined so that the opening area is smaller than the opening area of the inner surface of the frame, or the opening area of the surface of the frame is inclined such that the opening area is larger than the opening area of the inner surface of the frame. Opened, filled with synthetic resin material with carbon fiber, glass fiber or other materials of the same effect as the reinforcing material in the through hole, or filled with ceramic or another material of the same effect as these in the through hole. The object is achieved by a configuration.

[0008]

When it is desired to adjust the weight of the head, the internal area of the frame formed along the outer edge of the back of the hitting ball portion is recessed to an arbitrary portion of the frame where the space is formed. Since the through hole is formed so as to penetrate the frame portion and open to the inner surface of the frame portion, the material of the frame portion corresponding to the size of the through hole is removed, and the through hole portion is reduced in weight. The weight corresponding to the applied member affects the overall balance of the head, and fine adjustment of the weight of the head is possible. And
Since the outline of the rear portion, that is, the frame portion is a frame portion made of a material continuous with the head main body, there is no danger of feeling uncomfortable at the time of addressing and has an effect of preventing a miss shot.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described based on embodiments. The iron club head used in the present invention is a club generally called an iron club with respect to a wood club, and is usually used for a club composed of a long iron, a middle iron, a short iron, a wedge (sand wedge, pitching wedge) or the like.

On the back of the head 1 of the iron club head, a frame portion 2 having an arbitrary width is formed along the outer edge A of the back surface, and the internal region 3 of the frame portion 2 is recessed 4 to form a space portion 5. An arbitrary through-hole 7 </ b> A that opens into the space 5 is provided at an arbitrary portion of the frame 2. This head 1
May be a metal, a composite of a metal and a synthetic resin, or a material other than a metal. As the metal, any material such as stainless steel, iron, and other materials having the same effect as these can be used. The structure of the head, the head body and the ball striking surface formed of the same material, the head body and the ball striking surface formed of a different material, titanium alloy and
A material formed of a composite material of a stainless steel mesh and a synthetic resin, a synthetic resin material using carbon fiber or metal fiber as a reinforcing material, or any other material can be used.
This will be described with reference to the drawings of the embodiments.

The embodiment shown in FIG.
A frame portion 2 is formed along the outer edge of the back surface, and an internal region 3 formed by the frame portion 2 is recessed to form a space portion 5. A space portion 5 is formed on the sole portion 6 of the head 1. A through-hole 7 is formed substantially in parallel with the vertical direction from the direction of the sole 6 to the direction of the space 5 through the frame 2. The length and width of the through-hole 7 are arbitrary, and the position where the through-hole 7 is provided can be arbitrarily opened as desired. FIG. 2 is an enlarged end view taken along the line XX of FIG.

Next, in the embodiment shown in FIG. 3, a through-hole 7g is provided in the top edge portion 11 of the frame portion 2 of the head 1, and FIG. 4 is an enlarged end view taken along the line YY in FIG. is there. Next, in the embodiment shown in FIG. 5, through holes 7, 7g are provided in the sole portion 6 and the top edge portion 11 of the frame portion 2 of the head 1, and FIG. It is an end elevation. Next, the one shown in FIG. 11 is one in which two through holes 7, 7a are provided in the sole portion 6 of the frame portion 2 of the head 1 substantially in parallel.
FIG. 12 is an enlarged end view of the WW portion of FIG. next,
The one shown in FIG. 13 has a through hole 7 in the sole portion 6 of the frame portion 2 of the head 1, a through hole 7g in the top edge portion 11, a through hole 7e in the heel portion 8, and a through hole 7h in the toe portion 9. It is.

As described above, the shape of the through-hole 7A can be arbitrarily formed as desired. The method of forming the through-hole 7A is such that the through-hole 7A is substantially parallel to the striking surface 10 as shown in FIG. 7, a through hole 7A opened in the space portion 5 direction from the sole portion 6 direction as shown in FIG.
A through-hole 7c that is opened so as to be inclined to approach the direction, or conversely, as shown in FIG. As shown in FIG.
As shown in the figure, the surface of the sole portion 6 is widely opened widely,
A through hole 7e that opens narrowly over the space 5;
As shown in FIG. 10, it is also possible to arbitrarily implement a method in which the surface of the sole portion 6 is opened narrowly and the through hole 7 f is opened wide across the space portion 5.

Further, as shown in FIG.
It is also possible to fill the through hole 7A with a ceramic or other material having the same effect as these, carbon fiber, glass fiber, or a synthetic resin material using a material having the same effect as these as a reinforcing material. As shown in FIG. 19, a dug portion 13 is formed in the through hole 7A, and the dug portion 13 has the same material as that of the ceramic, other materials, carbon fiber, glass fiber and the like. The filling 12a is filled with a synthetic resin material or the like having an effective material as a reinforcing material, so that fixation is completed, and the member of the filling 12a can be prevented from falling off. As the material of the filling members 12 and 12a, tungsten steel, cobalt steel, or the like having a higher specific gravity than the other head 1 can be used.

[0015]

According to the present invention, when the weight of the head is desired to be adjusted, a desired through hole may be formed singly or in combination in a frame formed along the outer edge of the back surface of the hitting portion. As a result, the material of the frame portion corresponding to the through hole is removed, and the portion of the through hole becomes lighter. Therefore, the weight corresponding to the removed member affects the head balance, and delicate weight adjustment of the head and sweet spot Is extremely easy to adjust. Since the outline of the rear surface, that is, the edge portion is a frame portion made of a material continuous with the head main body, there is no danger that a sense of incongruity is felt at the time of addressing, so that there is an effect of preventing a miss shot.

In addition, the through hole of the frame portion is filled with a ceramic or other material having the same effect as those described above, carbon fiber, glass fiber, or a synthetic resin material or the like having a material having the same effect as these as a reinforcing material. By adjusting the weight of the filling member, finer balance adjustment is possible.
Further, the one in which the filling member is provided in the through-hole of the sole portion is effective as an iron club head which is easy to swing out without slipping of the soil or grass in the through-hole so that the sole can slide easily during a shot.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of an iron club head according to the present invention.

FIG. 2 is an enlarged end view cut along the line XX of FIG. 1;

FIG. 3 is a perspective view of a main part of the iron club head of the present invention.

FIG. 4 is an enlarged end view cut along the line YY of FIG. 3;

FIG. 5 is a perspective view of a main part of the iron club head of the present invention.

FIG. 6 is an enlarged end view cut along the line ZZ in FIG. 3;

FIG. 7 is an enlarged end view taken along the line XX of FIG. 1;

FIG. 8 is an enlarged end view taken along the line XX of FIG. 1;

FIG. 9 is an enlarged end view taken along the line XX of FIG. 1;

FIG. 10 is an enlarged end view taken along the line XX of FIG. 1;

FIG. 11 is a perspective view of a main part of the iron club head of the present invention.

FIG. 12 is an enlarged end view taken along line WW of FIG. 11;

FIG. 13 is a perspective view of a main part of the iron club head of the present invention.

FIG. 14 is a perspective view of a main part of the iron club head of the present invention.

FIG. 15 is a perspective view of a main part of the iron club head of the present invention.

FIG. 16 is a perspective view of a main part of the iron club head of the present invention.

FIG. 17 is a perspective view of a main part of the iron club head of the present invention.

18 is an enlarged end view cut along the line XX of FIG. 1 showing a state in which an arbitrary material is filled 12 in the through-hole 7A.

FIG. 19 is an enlarged end view cut along the line XX of FIG. 1 showing a state in which a dug portion is provided in the through hole 7A and an optional material is filled 12a.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 head 2 frame 3 internal region 4 recess 5 space 6 sole 7 through hole 7A through hole 7a through hole 7b through hole 7c through hole 7d through hole 7e through hole 7f through hole 7g through hole 7h through hole 8 heel 9 toe part 10 striking face part 11 top edge part 12 filling 12a filling 13 dug part A outer edge

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A63B 53/04 A63B 53/06

Claims (2)

(57) [Claims] 1. An iron club head comprising: a frame portion formed on a back surface of an iron club head along an outer edge of the back surface; and an inner region formed by the frame portion is recessed to form a space portion. An iron club head, wherein an arbitrary through-hole that opens into the space is provided at an arbitrary portion of the frame portion. 2. The frame according to claim 1, wherein the through-hole is arbitrarily formed singly, in combination, or in combination with a desired portion such as a top edge portion, a toe portion, a sole portion, a heel portion, or the like of the frame portion. Iron club head.