(19)
(11) EP 0 960 635 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.08.2001 Bulletin 2001/35

(43) Date of publication A2:
01.12.1999 Bulletin 1999/48

(21) Application number: 99109095.2

(22) Date of filing: 07.05.1999
(51) International Patent Classification (IPC)7: A63B 53/04
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 29.05.1998 JP 16625798
17.11.1998 JP 32624998

(71) Applicant: Honma Golf Co., Ltd.
Tokyo (JP)

(72) Inventor:
  • Honma, Yukihiro, c/o Honma Golf Co.,Ltd.
    Tokyo (JP)

(74) Representative: Schoppe, Fritz, Dipl.-Ing. 
Schoppe, Zimmermann & Stöckeler Patentanwälte Postfach 71 08 67
81458 München
81458 München (DE)

   


(54) Head for golf club


(57) The invention provides a head for a golf club which is able to achieve an increase of a moment of inertia, an expansion of a sweet spot and the like without making higher a technique for producing the head, and does not deteriorate a batting feeling during a golf play. A plated layer is provided on a surface of a metal head, or a plated layer made of a material having a specific gravity larger than that of material a metal head is provided on a surface of the metal head. The metal head is one selected from titanium, aluminum, stainless steel and soft iron, the surface of the metal head is applied with a plated layer whose material property is provided to the surface of the metal head, and a chrome, a nickel, a copper and their alloy is suitable for the plated material. The plated layer is made in a multiple layer structure having two or more layers. The nickel is excellent in an adhesion property and a bonding property against the material to be plated therewith and the chrome is great in both of a specific gravity and a hardness, and a combination of the nickel and the chrome is preferable.






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