GOLF CLUB HEAD MADE OF COMPOSITE MATERIAL

Title:

GOLF CLUB HEAD MADE OF COMPOSITE MATERIAL

Document Type and Number:

Japanese Patent JP2003245381

Kind Code:

A

Abstract:

To impart a high inertia moment to a golf club head.

A golf club 40 having a golf club head 42, which has a face 60 and an aft body 61, is disclosed. The face has a hitting plate 72 and a bouncing area 74. The aft body 61 is composed of a crown 62, a sole 64, and selectively a ribbon 90. The face is made of metal and the aft body 61 is made of a nonmetalic material such as a composite material or a thermoplastic material. The hitting plate 72 has an aspect ratio smaller than 1.7. The hitting plate has a concentrical area, which is thickest at its center 102. The club head 42 is 290 cm3 to 600 cm3 in volume and 165 g to 300 g in mass, and has a hitting plate 4 which has a surface area of 4 to 7.5 square inches. The club head 42 has a reflection coefficient equal to or more than 0.81 at the test conditions stipulated in the 1998-1999 USGA rules 4-1e and an additional rule II.

Inventors:

SORACCO PETER L
HELMSTETTER RICHARD C
HOCKNELL ALAN
CACKETT MATTHEW T
HERBERT REIZU
MURPHY JAMES M
J ANDREW GAROWAY

Application Number:

JP2002192701A

Publication Date:

September 02, 2003

Filing Date:

July 01, 2002

Export Citation:

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Assignee:

CALLAWAY GOLF CO

International Classes:

A63B53/02; A63B53/04; (IPC1-7): A63B53/04

Domestic Patent References:

JP2001170229A	2001-06-26
JP2001170223A	2001-06-26
JP2001286585A	2001-10-16
JPH11197274A	1999-07-27
JPH07501473A	1995-02-16

Attorney, Agent or Firm:

Tadahiko Ito (3 outside)

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