Analysis method of golf club
First Claim
1. A method of analyzing a golf club, diagnosing a swing, selecting a golf club, or designing a golf club, comprises:
- performing a time-series analysis of a torque that acts on a joint during the swing when modeling using the golf club, and at least a part of a golf player who grips a grip member of the golf club to provide a link model in which the golf club is connected with the golf player via the joint; and
using gravity that acts on the golf club in calculation of the torque,wherein the time-series analysis of the torque that acts on the joint during the swing when modeling using the golf club is performed by a computer having a CPU (central processing unit), andwherein an axis of the torque to be analyzed include an A axis that is parallel to a ground and is oriented to a target direction, a B axis that is in a direction of a shaft axis of the golf club in addressing, or a C axis that is parallel to the ground and is perpendicular to the A axis.
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Accused Products
Abstract
According to the present invention, a torque applied from a golf player to a golf club during a swing is analyzed in a time-series manner. A DLT method is suitable as a determination procedure. Preferably, a link model is used in this analysis. Preferably, the three-dimensional coordinate of the mark provided at a position that corresponds to the link model is determined by a DLT method. Preferable analysis method includes: modeling using a golf club, and at least a part of a golf player who grips a grip member of the golf club to provide a link model in which the golf club is connected with the golf player via a joint; and analyzing the torque that acts on the joint is analyzed during the swing in a time-series manner. This joint is positioned in the vicinity of the grip member. This analysis can be applied to a method of diagnosing a swing, a method of selecting a golf club, and a method of designing a golf club.
49 Citations
9 Claims
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1. A method of analyzing a golf club, diagnosing a swing, selecting a golf club, or designing a golf club, comprises:
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performing a time-series analysis of a torque that acts on a joint during the swing when modeling using the golf club, and at least a part of a golf player who grips a grip member of the golf club to provide a link model in which the golf club is connected with the golf player via the joint; and using gravity that acts on the golf club in calculation of the torque, wherein the time-series analysis of the torque that acts on the joint during the swing when modeling using the golf club is performed by a computer having a CPU (central processing unit), and wherein an axis of the torque to be analyzed include an A axis that is parallel to a ground and is oriented to a target direction, a B axis that is in a direction of a shaft axis of the golf club in addressing, or a C axis that is parallel to the ground and is perpendicular to the A axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of analyzing a golf club, diagnosing a swing, selecting a golf club, or designing a golf club, comprises:
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performing a time-series analysis of a torque that acts on a joint during the swing when modeling using the golf club, and at least a part of a golf player who grips a grip member of the golf club to provide a link model in which the golf club is connected with the golf player via the joint; and using gravity that acts on the golf club in calculation of the torque, wherein the time-series analysis of the torque that acts on the joint during the swing when modeling using the golf club is performed by a computer having a CPU (central processing unit), wherein the link model contains a human body-corresponding link, a club-corresponding link, and a joint connecting the human body-corresponding link and the club-corresponding link, and wherein the torque contains a torque for maintaining an angle between the human body-corresponding link and the club-corresponding link, wherein an axis of the torque to be analyzed include an A axis that is parallel to a ground and is oriented to a target direction, a B axis that is in a direction of a shaft axis of the golf club in addressing, or a C axis that is parallel to the ground and is perpendicular to the A axis.
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Specification