Golf club shaft

Details Golf club shaft Golf club shaft

1993-05-25

1995-06-06

Passaniti, Sebastiano

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273DIG23, A63B 5310

Patent

active

054215730

ABSTRACT:
The proportion of the torsional rigidity of a base end side grip portion to that of an end side portion fitted with a club head ranges between (1:1) and (4:1). As a result, a golf club shaft arranged so as to have such a proportion of torsional rigidity is increased in the torsional angle of the base end side grip portion thereof as compared with the end side portion thereof which is fitted with the club head thereof.

REFERENCES:
patent: 3998458 (1976-12-01), Inoue
patent: 4000896 (1977-01-01), Lauraitis
patent: 4135035 (1979-01-01), Branen
patent: 4157181 (1979-06-01), Cecka
patent: 4319750 (1982-03-01), Roy
patent: 4889575 (1989-12-01), Roy
patent: 5088735 (1992-02-01), Shigetoh
patent: 5143374 (1992-09-01), Shibasaki
patent: 5156396 (1992-10-01), Akatsuka

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