Method for making iron golf club set

a golf club and iron technology, applied in the field of making golf clubs, can solve the problems of more difficult golfers, and achieve the effect of improving the score and stably

Inactive Publication Date: 2007-01-25
BRIDGESTONE SPORTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012] According to the above-described structure, in a small carry region, carries can stably be obtained using the golf clubs of such a golf club set. This results in improvement in a score.

Problems solved by technology

For example, it is more difficult for a golfer, who can hit a distance of 100 yards with a PW on a full shot, to hit a distance of 70 yards with a PW on a control shot than to hit a distance of 100 yards with a PW on a full shot.

Method used

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  • Method for making iron golf club set
  • Method for making iron golf club set
  • Method for making iron golf club set

Examples

Experimental program
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Embodiment Construction

[0017] Hereinafter, embodiments of the invention are described by referring to the accompanying drawings.

[0018] A graph shown in FIG. 1 illustrates a range on full shot of an iron golf club set in the case of an average golfer. This graph also illustrates an example of adding golf clubs, carries obtained with which are smaller than that obtained with the PW, to the iron golf club set, that is, an example of adding two golf clubs “EXT1” and “EXT2” thereto for expansion of the range. The two golf clubs “EXT1” and “EXT2” meet conditions that a carry is stably obtained by hitting with each of these golf clubs on a full shot, and that the obtained carry is in a small carry region and is smaller than that obtained with the PW. Such a club, the carry obtained with which is in the small carry region, is designed according to the following relational expression showing a relation between the initial speed Vb of a ball and the weight Mh of a head: Vb=(1+e1+mbMh)·Vh·cos⁡(loft⁢ ⁢angle)

where ...

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Abstract

A method for making an iron golf club set includes selecting a plurality of iron golf clubs including a pitching wedge, wherein a difference in carry between each pair of golf clubs, which have consecutive club numbers, is substantially equal to a particular value; further selecting a minimum-carry golf club, which has a loft angle in a range of 55 to 60 degrees and a club length in a range of 34.5 inches to 35.5 inches; measuring carries of at least the pitching wedge and the minimum-carry golf club to obtain a difference in the carry between the pitching wedge and the minimum-carry golf club and; and still further selecting at least one golf club on a basis of the obtained difference in the carry so that a difference in carry between each pair of golf clubs, which have consecutive club numbers, is substantially equal to the particular value.

Description

[0001] This application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 2005-214230 on Jul. 25, 2005, the entire contents of which are incorporated herein by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The invention relates to a method for making a an iron golf club set and, more particularly, to a method for making an iron golf club set including at least two iron clubs, each of which has a loft angle larger than that of a pitching wedge and equal to or larger than 45 degrees [0004] 2. Description of the Related Art [0005] A golf club set of six irons consisting of clubs numbered from 5 to 9 and a PW (Pitching Wedge) has recently entered the mainstream of iron golf club sets for average golfers. The iron golf clubs are designed so that a difference in carry between each iron golf club and the next-numbered iron golf club is equal to about 10 yards. Hitherto, a iron golf club set of eight irons consis...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A63F3/00A63B53/00A63B102/32
CPCA63B53/00A63B2069/3605A63B2053/005A63B59/0074A63B60/42A63B69/3605A63B53/005
Inventor KAJITA, RYOTA
Owner BRIDGESTONE SPORTS
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