Golf club head having a striking face with improved impact efficiency
AssigneeCallaway Golf Company
InventorJohn B. Kosmatka
Life of this patent
Estimating the term…
Abstract
A compliant golf club head permits a more efficient impact between a golf ball and the golf club head. Material and geometry constraints of a striking plate of the golf club head can reduce energy losses caused by large strain and strain rate values of the golf ball, these constraints on the striking plate yield a measure of the impact efficiency of the golf club head. Designating a required natural frequency range of the striking plate provides improved impact efficiency between the golf ball the golf club head.
Claims7
A wood-type golf club head comprising:
- a body having a top region, a bottom region, a rear region and an open front;
- a striking plate disposed in the open front of the body, the striking plate having a plurality of scorelines thereon, the striking plate composed of a titanium alloy material and having a thickness less than 0.200 inch and greater than 0.070 inch, the striking plate having a natural frequency of less than 4500 Hz and greater than 2800 Hz.
A wood-type golf club head comprising:
- a body having a top region, a bottom region, a rear region and an open front;
- a striking plate disposed in the open front of the body, the striking plate composed of a titanium alloy material and having a thickness less than 0.140 inch, the striking plate having a plurality of scorelines thereon, the striking plate having a natural frequency of less than 8500 Hz and greater than 2800 Hz.
A wood-type golf club head comprising:
- a body having a striking plate, the striking plate composed of a titanium alloy material and having a thickness less than 0.200 inch and greater than 0.070 inch, the striking plate having a plurality of scorelines thereon, the striking plate having a natural frequency of less than 4000 Hz and greater than 2800 Hz.
A wood-type golf club head comprising:
- a body having a top region, a bottom region, a rear region and an open front, the body composed of a non-metallic material;
- a striking plate disposed in the open front of the body, the striking plate composed of a titanium alloy material and having a thickness less than 0.140 inch, the striking plate having a plurality of scorelines thereon, the striking plate having a natural frequency of less than 8500 Hz and greater than 2800 Hz.
Dependencies are inferred from the claim text.