Title:
IRON GOLF CLUB HEAD, IRON GOLF CLUB, AND IRON GOLF CLUB SET
Document Type and Number:
WIPO Patent Application WO/2001/000283
Kind Code:
A1
Abstract:
An iron golf club head (1) comprising three principal axes of inertia (I¿1?, I¿2? and I¿3?) passing the gravity center thereof, wherein an angle $g(u) between the axis I¿1? on which a moment of inertia about a principal axis of the inertia among three principal axes of inertia becomes maximum and the normal line vector (101) of a face surface (3f) passing the gravity center thereof is 10° or more and 90° or less.
Inventors:
IWATA MOTOTAKA (JP)
SAKAI KOJI (JP)
NAGAO HIROSHI (JP)
SAKAI KOJI (JP)
NAGAO HIROSHI (JP)
Application Number:
PCT/JP2000/003336
Publication Date:
January 04, 2001
Filing Date:
May 24, 2000
Export Citation:
Assignee:
MIZUNO KK (JP)
IWATA MOTOTAKA (JP)
SAKAI KOJI (JP)
NAGAO HIROSHI (JP)
IWATA MOTOTAKA (JP)
SAKAI KOJI (JP)
NAGAO HIROSHI (JP)
International Classes:
A63B53/00; A63B53/04; A63B102/32; (IPC1-7): A63B53/04; A63B53/00
Foreign References:
| US5836830A | 1998-11-17 | |||
| JPH0557035A | 1993-03-09 | |||
| JPS5917364A | 1984-01-28 | |||
| JPH0557034A | 1993-03-09 |
Other References:
See also references of EP 1116504A4
Attorney, Agent or Firm:
Fukami, Hisao (Minamimori-machi 2-chome Kita-ku Osaka-shi, Osaka, JP)
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