초록 ▼

A golf club head is provided with an impact surface formed of a shape memory alloy. The shape memory alloy is selected to have a transformation temperature applicable for the range of normal golf playing temperatures, that is in the range between about 0 and 15 degrees C. This selection of the trans

A golf club head is provided with an impact surface formed of a shape memory alloy. The shape memory alloy is selected to have a transformation temperature applicable for the range of normal golf playing temperatures, that is in the range between about 0 and 15 degrees C. This selection of the transformation temperature of the impact surface provides an effective variation of the stiffness of the golf club head that compensates for changes of the stiffness of a golf ball with changing temperatures.

대표청구항 ▼

[ I claim:] [1.] A golf club head for striking a golf ball and having temperature variable impact properties, said club head comprising an impact surface or portion thereof fabricated from a shape memory alloy having a transformation temperature in the range of 0 to 15 degreeC., said impact surface

[ I claim:] [1.] A golf club head for striking a golf ball and having temperature variable impact properties, said club head comprising an impact surface or portion thereof fabricated from a shape memory alloy having a transformation temperature in the range of 0 to 15 degreeC., said impact surface having stiff, substantially elastic impact characteristics at playing temperatures higher than said transformation temperature and having softer impact characteristics at playing temperatures lower than said transformation temperature; whereby the variation in stiffness of the impact surface of the golf club head when striking a golf ball over a range of playing temperatures above and below said transformation temperature compensates for changes in the stiffness of a golf ball due to changes in the range of playing temperatures.