Title:
慣性乗積を最適化するゴルフクラブヘッド
Document Type and Number:
Japanese Patent JP4188017
Kind Code:
B2
Abstract:
A golf club having products of inertia Ixy, Ixz and Iyz with absolute values below 100 g-cm2 is disclosed herein. The golf club has a large volume, a high moment of inertia, or both. Preferably, the moment of inertia, Izz, of the golf club head about a vertical axis Z through the center of gravity ranges from 3000 g-cm2 to 5000 g-cm2, and a moment of inertia, Iyy, about a horizontal axis Y through the center of gravity of the golf club head ranges from 1900 g-cm2 to 2050 g-cm2. Preferably, the golf club head is composed of plies of pre-preg sheets. The volume of the golf club head preferably varies from 300 cm3 to 600 cm3.
Inventors:
Matthew tea cacket
Dee Clayton Evans
Richard Sea Helmsetter
Frank fan
Alan Hocknell
Dee Clayton Evans
Richard Sea Helmsetter
Frank fan
Alan Hocknell
Application Number:
JP2002214329A
Publication Date:
November 26, 2008
Filing Date:
July 23, 2002
Export Citation:
Assignee:
Callaway Golf Company
International Classes:
A63B53/04; A63B53/02; B29C70/34; B29C70/86
Domestic Patent References:
| JP5057034A | ||||
| JP2001000597A | ||||
| JP2001509718A |
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Sadao Sasaki
Shinsuke Onuki
Tadashige Ito
Sadao Sasaki