Hollow golf club head

Details Hollow golf club head Hollow golf club head

2006-08-23

2009-08-04

Passaniti, Sebastiano (Department: 3711)

Games using tangible projectile

Golf

Club or club support

C473S345000, C473S349000

Reexamination Certificate

active

07568984

ABSTRACT:
A hollow golf club head is provided that includes a face portion, a sole portion extending backward from a lower portion of the face portion to form a bottom portion of the golf club head, a crown portion extending backward from an upper portion of the face portion to form an upper portion of the golf club head, and a vibration absorbing layer in a film form composed of an elastic body on an inner surface of the crown portion. The sole portion and the crown portion are configured such that a ratio of a rigidity of the sole portion to a rigidity of the crown portion is 1: 0.1 to 0.8, and the vibration absorbing layer has a ring shape covering an outer peripheral portion of the crown portion. The launch angle of a ball is increased so that the traveling distance of a shot can be increased.

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