Method for fitting golf club
View Patent ↗A fitting method includes steps of preparing a relationship C of a shaft flex point Y and a face angle X before impact or at impact; measuring a subject's face angle X before impact or at impact by using a test club; and selecting a shaft fitted to the subject on the basis of the measured face angle X and the relationship C. The relationship C is created by using correlation R of the face angle before impact or at impact and a hitting result. The correlation R is based on hitting results of a plurality of golf clubs having different shaft flex point rates. Preferably, the relationship C is a relational expression F 1.
1. A fitting method of a golf club comprising steps of:
performing the following steps by a processor;
preparing a relationship C of a shaft flex point Y and a face angle X before impact or at impact;
calculating a subject's face angle X before impact or at impact by using a test club from measurement data provided by a measuring device; and
selecting a shaft fitted to the subject on the basis of the measured face angle X and the relationship C,
wherein the relationship C is created by using correlation R of the face angle before impact or at impact and a hitting result, and the correlation R is based on hitting results of a plurality of golf clubs having different shaft flex point rates.
2. The fitting method according to claim 1 wherein the relationship C is a relational expression F 1 .
3. The fitting method according to claim 2 wherein the relational expression F 1 is such a relational expression that the greater the face angle X is, the lower the shaft flex point Y is.
4. The fitting method according to claim 2 wherein the step of preparing the relational expression F 1 includes steps of:
obtaining the relational expression F 1 on the basis of a first hitting result; and
modifying the relational expression F 1 on the basis of a second hitting result.
5. The fitting method according to claim 4 wherein the step of modifying the relational expression F 1 on the basis of the second hitting result includes steps of:
identifying a standard shaft flex point Yh; and
modifying the relational expression F 1 so that the second hitting result is preferred at the standard shaft flex point Yh.
6. The fitting method according to claim 4 , wherein
the first hitting result is a direction of a hit ball; and
the second hitting result is a result on a flight distance.
7. The fitting method according to claim 1 wherein a preferred hitting result at a standard shaft flex point Yh is reflected in the relationship C.
8. The fitting method according to claim 2 wherein in the relational expression F 1 ,
the measured face angle X is made a first input variable;
a value showing a relationship of a shaft flex point D 1 of the test club and the standard shaft flex point Yh is made a second input variable, and
the shaft flex point Y fitted to the subject is made a result variable.
9. The fitting method according to claim 1 wherein the hitting result is a direction of a hit ball.