GOLF CLUB AND GOLF CLUB SET
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United States of America Patent
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N/A
Issued Date -
Dec 31, 2015
app pub date -
Jun 25, 2015
filing date -
Jun 26, 2014
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A golf club in a golf club set has a shaft and a golf club head which includes a crown portion, a face portion, a sole portion, and a hosel portion to which the shaft is attached. Among the golf clubs included in the golf club set, in at least a pair of golf clubs having adjacent club numbers, the length of the face portion, in the face-back direction in a plan view, of the golf club having a higher club number is larger than that of the golf club having a lower club number. The difference between the lengths is ΔA mm. In the golf clubs, the face progression of the golf club having the higher club number is larger than the face progression of the golf club having the lower club number, and the difference between the face progressions is ΔB mm. ΔA and ΔB satisfy (⅓)×ΔA≦ΔB≦(⅔)×ΔA.
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