Patent ID: 8465378
Filing Date: 2013-06-18
Classification: A63B

Abstract:
1. A shaft selection assist apparatus comprising: storage means for storing recommended shaft information indicating a correspondence between measurement parameters obtained upon a test strike with a golf club to which a predetermined reference shaft is attached, and recommended shafts among shafts of a plurality of types; acquisition means for acquiring measurement results of the measurement parameters associated with a test strike actually made by a user with the golf club; selection means for selecting a recommended shaft by referring to the recommended shaft information based on the measurement results acquired by said acquisition means; and output means for outputting information indicating the recommended shaft selected by said selection means, wherein the recommended shaft information stored in said storage means comprises information which specifies recommended shafts based on a relationship between a shaft rigidity distribution and the measurement parameters, the measurement parameters include a horizontal launch angle of a struck ball and a side spin direction of the struck ball, the recommended shaft information stored in said storage means indicates a correspondence between the horizontal launch angle and the side spin direction, and recommended shafts, the recommended shaft information stored in said storage means specifies as recommended shafts: a shaft which has a large rigidity difference in a predetermined range on a proximal side if the horizontal launch angle is in a rightward direction, a shaft which has a small rigidity difference on the proximal side if the horizontal launch angle is in a leftward direction, a shaft which has a large rigidity difference in a predetermined range on a distal side if the side spin direction indicates slice spin, and a shaft which has a small rigidity difference on the distal side if the side spin direction indicates hook spin.