GOLF CLUB HEAD OR OTHER BALL STRIKING DEVICE HAVING FACE INSERT

摘要

A ball striking device (100), such as a golf club, includes a head (102) with a face (112) having an outer surface configured for striking a ball, a body (108) connected to the face, and an insert (140) connected to the face and forming a portion of the outer surface. The density and/or friction properties of the insert may be different from those of adjacent portions of the face. Depending on the size, shape, and location of the insert, the moment of inertia of the head may change, the center of gravity of the face may shift, and/or the degree and direction of spin on the ball resulting from impacts may change.