Golf club, jetdrv driver for increased distance and accuracy

Abstract

A golf club, a driver, designed to provide an inprovement in the accuracy of ball control as club head speeds are increased from 100 miles per hour to the level of a semipro at 120 miles per hour. Most forces on the club head increase as the square of the velocity, representing a forty four percent increase. A detailed analysis has been made of forces generated during the collision of the ball and club head and their effect on trajectory of the ball. The design proposed greatly reduces the aerodynamic drag of the clubhead, increases the allowable tolerance to angular misalignment of the club striking face from two degrees to ten degrees and reduces the torque that twists the club head causing an angular misalignment prior to contact with the ball.

Description

U.S. PATENT DOCUMENTS [0001]3,595,577July 1971Hodge3,625,518December 1971Solheim3,941,390March 1976Hussey4,471,961September 1984Masghati5,354,059October 1994Stuff5,366,223November 1994Werner5,511,786April 1996Antonious5,735,754April 1998Antonious5,971,868October 1999Kosmatka5,997,413December 1999Wood6,139,445October 2000Werner6,190,267February 2001Marlowe6,312,534November 2001Grensing6,319,437November 2001Elsner6,371,868April 2002Galloway6,402,636June 2002Chang6,478,692November 2002KosmatkaBACKGROUND OF THE INVENTION [0002] Golf has become a very popular sport for both the amateur and the professional resulting in rapid improvements in courses, hazzards, clubs and balls. The two clubs which account for the most strokes on the score card are the driver and the putter. The driver is responsible for covering the the majority of the yardage on most courses, and consequently is responsible for getting its owner into the most difficult to impossible lies. Recent trend in driver design has...

AI Technical Summary

Benefits of technology

[0014] The third most helpful book “The Physics of Golf”, by Theodore P. Jorgensen Department of Physics and Astronomy University of Nebraska. This book provides an excellent quantitave comparison of an analytical treatment of the golf club swing and corrolates these results with experimental measured data. Additionally a computer program is provided in Qbasic by The American Institute of Physics. This program was modified by the inventor to include the effects of the aerodynamic drag on the clubhead and shaft. Results of this analysis were used to study the clubhead-to-ball transfer of energy and how it can be controlled to improve strike accuracy. The ball is assumed to be a spherical spring and the clubhead a ridge anvil to deform the ball in a desirable manner, controlling ball spin and direction. Kinetic energy transferred from clubhead to ball is proportional to the square of the club velocity at impact and directly as the ratio of the mass of the clubhead to the mass of the ball. Clubhead mass and aerodynamic drag is reduced to provide a higher velocity for the same energy input by the golfer. The center of gravity of the clubhead is more closely alligned with the shaft axis to ensure contact alignment between center of gravity of the clubhead and the ball, namely the sweet spot.

Problems solved by technology

Clubhead speeds of 120 miles per hour could result in 260 yard drives, however, if the clubhead is only two degrees off normal when striking the ball, this will cause the drive to be off the aiming point by this angular error of at least nine yards.

It is not practical to swing the same club at the higher speed without introducing an uncontrollable slice.

This claim is impossible since the center of precussion is close to the club center of gravity.

The inventors error is in the selection of the shaft centerline as the pivot point in the analysis rather than at the wrist-cock-axis.

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