Shift selection aiding apparatus for selecting optimum shaft for

Details Shift selection aiding apparatus for selecting optimum shaft for Shift selection aiding apparatus for selecting optimum shaft for

1997-11-12

1999-12-14

Oda, Christine K.

Measuring and testing

Speed, velocity, or acceleration

With means for retaining reading

473233, 473239, G01P 1500

Patent

active

060002867

ABSTRACT:
A high speed camera takes an image in the vicinity of a ball 3 and a club head 12, while a high speed camera 5 takes an image in the vicinity of the top of the swing of a golfer 1, and the images are recorded in a high speed video tape recorder 6. The recorded images are reproduced, swing time, a swing speed and a head speed are detected using a personal computer 15, and a shaft with an optimum flex for the golfer is selected based on the swing time, the swing speed, the swing time and the head speed, or the swing speed and the head speed.

REFERENCES:
patent: 3945646 (1976-03-01), Hammond
patent: 4138118 (1979-02-01), Budney
patent: 4261566 (1981-04-01), MacDougall
patent: 4375887 (1983-03-01), Lynch et al.
patent: 4991850 (1991-02-01), Wilhelm
patent: 5351952 (1994-10-01), Hackman
patent: 5441256 (1995-08-01), Hackman
patent: 5478073 (1995-12-01), Hackman
patent: 5511789 (1996-04-01), Nakamura

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