Golf club head with a high coefficient of restitution
First Claim
1. A method of determining the coefficient of restitution of a golf club face comprising the steps of:
- imparting a first impact force to the club face;
measuring a first primary resonant frequency of vibration for the club face; and
determining the coefficient of restitution by correlating the first primary resonant frequency to the coefficient of restitution.
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Accused Products
Abstract
The present invention relates to a golf club head provided with a face and a body. The face has a central zone and a intermediate zone adjacent and surrounding the central zone. The central zone has a first flexural stiffness and the intermediate zone has a second flexural stiffness. The club head face is configured and dimensioned such that the first flexural stiffness is significantly greater than the second flexural stiffness such that upon ball impact with the face, the intermediate zone exhibits substantial deformation so that the central zone moves into the club head. At the same time, the central zone exhibits minimal deformation so that it moves into and out of the club head as a unit. Furthermore, the face exhibits a high coefficient of restitution.
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Citations
17 Claims
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1. A method of determining the coefficient of restitution of a golf club face comprising the steps of:
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imparting a first impact force to the club face;
measuring a first primary resonant frequency of vibration for the club face; and
determining the coefficient of restitution by correlating the first primary resonant frequency to the coefficient of restitution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification