Iron type golf club head

Abstract

An iron type golf club head including a face portion having a planar face surface, and a hosel portion connected to the heel side of the face portion. A shaft insertion hole is provided in the hosel portion so as to penetrate the hosel portion. The distance from the center of gravity is 28-33 mm, the height of the center of gravity is 12-21 mm, the depth of the center of gravity is 5-15 mm, and the goose distance is 4-15 mm.

Description

[0001] The present disclosure relates to the subject matter contained in Japanese Patent Application No. 2002-1540 filed on Jan. 8, 2002, which is incorporated herein by reference in its entirety.[0002] 1. Field of the Invention[0003] The present invention relates to an iron type golf club head, and particularly relates to an iron type golf club head applicable to a long iron having a small loft angle.[0004] 2. Description of the Related Art[0005] As known well, an iron type golf club head has a face portion having a planar face surface, and a hosel portion connected to the heel side of the face portion and provided with a shaft insertion hole. A shaft is inserted into the shaft insertion hole and fixedly attached thereto by a bonding agent. A distance (distance in front view) between the center of gravity of the golf club head and the extension of the shaft axis is called a distance from the center of gravity.[0006] A long iron is a club difficult for beginners to make a good shot ...

AI Technical Summary

Benefits of technology

[0009] In such an iron type golf club head, each of the distance from the center of gravity and the height of the center of gravity is smaller than that in a long iron head in the related art. Thus, it becomes easy to hit a ball high even if a beginner uses a long iron having the golf club head.

Problems solved by technology

A long iron is a club difficult for beginners to make a good shot because it has a smaller loft angle and a longer shaft than that of a short iron.

As a result, it is difficult for beginners or powerless golfers to hit a ball high or the hit ball is apt to travel to the right (in the case of right-handed golfers, the same thing will be applied hereinafter) or slice heavily.

When the distance from the center of gravity is larger than this range, it becomes difficult particularly for beginners to turn the head so that a hit ball is apt to travel to the right or slice.

On the contrary, when the distance from the center of gravity is smaller than this range, it becomes easy to turn the head excessively so that a missed shot called a smothered ball or an excessive hook ball is apt to appear.

In this case, however, the vertical width of the sweet area is reduced, or there arises the feeling of insecurity to the eyes of beginners (the feeling of insecurity that it may be difficult to hit a ball on the face), or a missed shot caused by the golf club head sneaking through the lower side of the ball is produced in the rough easily.

However, when the depth of the center of gravity is made larger than 15 mm, the sole thickness increases correspondingly so that it becomes difficult to hit a ball sinking in the rough or a ball in a divot correctly.

On the contrary, when the sole thickness is larger than 35 mm, it becomes difficult to hit a ball sinking in the rough or a ball in a divot correctly.

However, when the goose distance is larger than 15 mm, the difference from the goose distance of the golf club head in the related art is so significant that a missed shot is apt to be hit or it takes much time unnecessarily for a user to adapt himself or herself to the golf club head.

Thus, it is difficult to hit a shank (hit a ball with a socket).

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