Measuring and testing – Center of gravity; turning moment; metacentric height – Ball driving sporting implement
Reexamination Certificate
2002-04-15
2004-06-01
Noori, Max (Department: 2855)
Measuring and testing
Center of gravity; turning moment; metacentric height
Ball driving sporting implement
C073S012020
Reexamination Certificate
active
06742385
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method for selecting a golf ball suitable for a golfer, and to a method and system for selecting a golf club and a golf ball suitable for a golfer.
2. Description of the Related Art
Conventionally, when a golfer selects a suitable golf club and/or a suitable golf ball, he or she collects relevant catalogs and/or hits balls on a trial basis, and the golfer then selects a golf club and/or a golf ball on the basis of data of the catalogs and/or results of the trial hit. This is a general manner of selecting a golf club and/or a golf ball.
Further, in order to select a golf club suitable for a golfer, there has conventionally been used a method in which the golfer is requested to hit golf balls with various golf clubs; head speeds of the golf clubs at that time are measured; and a golf club suitable for the golfer is selected on the basis of the head speeds.
However, even when the former method of selecting a golf club or a golf ball is used, the golfer encounters difficulty in determining which golf club or golf ball is really suited for him or her, because the golfer can browse only a limited number of catalogs and the time for trial hitting is limited.
Moreover, the latter method is adapted to select a golf club on the basis of a head speed that a golfer can attain (hereinafter referred to as a “head speed of a golfer”), and the types of data used for selection are few. Therefore, in some cases the latter method fails to select a golf club suitable for the golfer.
SUMMARY OF THE INVENTION
The present invention has been accomplished in view of the foregoing, and an object of the present invention is to provide a method for properly selecting a golf ball suitable for a golfer, and a method and system for properly selecting a golf club and a golf ball suitable for a golfer.
To achieve the above object, the present inventors have carried out earnest studies and found that a golf ball suitable for a golfer can be properly selected through use of head speed of a golf club and hit-ball data, which are obtained when the golfer hits a golf ball with the golf club, and ball-type selection data for determining which among a plurality of ball types is suitable for the golfer.
Further, the present inventors have found that a golf club suitable for a golfer can be properly selected when the selection is performed in consideration of not only a head speed of a golfer but also hit-ball data of the golfer, such as initial speed, launch angle, backspin, and side spin of a hit ball; specifically, when actual hit data such as a head speed of a golfer is obtained, ideal hit-ball data of the golfer are calculated on the basis of the actual hit data, and a golf club which is suitable for realization of the ideal hit-ball data is selected.
The present invention has been accomplished on the basis of these findings. According to a first aspect, the present invention provides a method for selecting a golf ball suitable for a golfer, comprising the steps of:
(i) obtaining at least one of head speed and hit-ball data when a golfer hits a golf ball with a golf club;
(ii) obtaining, from the golfer, ball-type selection data for determining which among a plurality of ball types is suitable for the golfer; and
(iii) selecting a golf ball of a type suitable for the golfer on the basis of the at least one of head speed and hit-ball data obtained in step (i) and the ball-type selection data obtained in step (ii).
According to a second aspect, the present invention provides a method for selecting a golf club and golf ball suitable for a golfer, comprising the steps of:
(a) obtaining at least one of head speed and hit-ball data when a golfer hits a golf ball with a golf club;
(b) obtaining ideal hit-ball data of the golfer on the basis of the at least one of head speed and hit-ball data obtained in step (a);
(c) selecting a golf club suitable for the golfer on the basis of the ideal hit-ball data obtained in step (b);
(d) obtaining at least one of head speed and hit-ball data when the golfer hits a golf ball with the golf club selected in step (c);
(e) obtaining, from the golfer, ball-type selection data for determining which among a plurality of ball types is suitable for the golfer; and
(f) selecting a golf ball of a type suitable for the golfer, on the basis of the at least one of head speed and hit-ball data obtained in step (d) and the ball-type selection data obtained in step (e).
According to a third aspect, the present invention provides a system for selecting a golf club and golf ball suitable for a golfer, comprising:
actual hit data obtainment means for obtaining at least one of head speed and hit-ball data when a golfer hits a golf ball with a golf club; and
ideal data obtainment means for obtaining ideal hit-ball data of the golfer on the basis of the at least one of head speed and hit-ball data obtained by the actual hit data obtainment means, wherein
a golf club suitable for the golfer is selected on the basis of the ideal hit-ball data obtained by the ideal data obtainment means; and
a golf ball of a type suitable for the golfer is selected on the basis of the at least one of head speed and hit-ball data, which are obtained by the actual hit data obtainment means as actual hit data when the golfer hits a golf ball by use of the selected golf club, and ball-type selection data obtained from the golfer and adapted for determining which among a plurality of ball types is suitable for the golfer.
The method for selecting a golf ball according to the present invention enables proper selection of a golf ball suitable for a golfer. Further, the method and system for selecting a golf club and a golf ball according to the present invention enables proper selection of a golf club and a golf ball suitable for a golfer.
REFERENCES:
patent: 4261566 (1981-04-01), MacDougall
patent: 4375887 (1983-03-01), Lynch et al.
patent: 5092602 (1992-03-01), Witler et al.
patent: 5836832 (1998-11-01), Boehm et al.
patent: 6014887 (2000-01-01), Naruo et al.
patent: 6192323 (2001-02-01), Boehm
patent: 6385559 (2002-05-01), Boehm
Bridgestone Sports Co. Ltd.
Noori Max
LandOfFree
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