WOOD CLUB HEAD

• US 20020013180A1
• Filed: 09/15/1999
• Published: 01/31/2002
• Est. Priority Date: 09/16/1998
• Status: Active Grant

• Current Assignee: Bridgestone Sports Co Limited (Bridgestone Corporation)
• Original Assignee: Bridgestone Sports Co Limited (Bridgestone Corporation)
• Inventors: KAJITA, RYOTA
• Granted Patent: US 6,344,002 B1
• Time in Patent Office: Days
• US Class Current: 473/330
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like

Abstract

In a wood club head having a face 2 constituted by convex surfaces curved vertically and horizontally, a bulge radius forming the substantially horizontally-curved surface is set to be not smaller than 15 inches.

Claims

1. A wood club head comprising a face constituted by convex surfaces curved vertically and horizontally, wherein a bulge radius forming the substantially horizontally-curved surface is set to be not smaller than 15 inches.

2. A wood club head according to claim 1, wherein inertial moment (IY) around a vertical axis (Y) passing through a center of gravity of said wood club head is set to be not smaller than 20 g·

mm·

sec² and a distance (ZG) of a perpendicular drawn from said center of gravity to said face is set to be not larger than 30 mm, and wherein said bulge radius is set to be not smaller than 15 inches.