Golf club head or other ball striking device with face having modulus variance

摘要

A ball striking device, such as a golf club head, includes a face having a ball striking surface, an inner surface opposite the ball striking surface, and a thickness defined between the ball striking surface and the inner surface, and a body connected to the face and extending rearward from the face. The face has a modulus gradient across the thickness of the face, such that the modulus of the face varies at different distances from the ball striking surface. The face may also include at least one of an insert, a composite material, a multi-layered structure, and/or a portion treated by a surface treatment to contribute to the modulus gradient.

主权项

1. A golf club head comprising:
a face having a ball striking surface, an inner surface opposite the ball striking surface, and a thickness defined between the ball striking surface and the inner surface, the face comprising a multi-layered structure extending across the thickness of the face comprising a first layer having a first modulus, a second layer having a second modulus that is different from the first modulus, and third layer having a third modulus that is different from the first modulus and the second modulus, wherein the multi-layered structure comprises an insert forming at least a portion of the face and extending across at least a portion of the thickness of the face, the insert forming at least one of the first and second layers; and a body connected to the face and extending rearward from the face.