Golf club head and golf club

• US 7,074,136 B2
• Filed: 03/25/2004
• Issued: 07/11/2006
• Est. Priority Date: 03/27/2003
• Status: Expired due to Fees

• Current Assignee: Mizuno Corporation
• Original Assignee: Mizuno Corporation
• Inventors: Noguchi, Shuichi, Inukai, Shinichi
• Primary Examiner(s): Kim, Eugene
• Assistant Examiner(s): HUNTER, ALVIN A
• Application Number:
  US10/809,196
• Publication Number:
  US 20040266551A1
• Time in Patent Office: 838 Days
• Field of Search: 473324-350
• US Class Current: 473/346
• CPC Class Codes: A63B 2209/02 with reinforcing fibres, e.g. carbon, polyamide fibres
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0437 with special crown configurations
• CPC Class Codes: A63B 53/045 Strengthening ribs
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 60/52 with slits

Abstract

A golf club head includes: a head body including a crown portion having a plurality of openings, a face portion, a toe portion, a heel portion and a sole portion; a crown part mounted to the head body so as to close the openings, and a support portion provided between the openings for supporting the crown part. The support portion is X-shaped, for example.

Claims

1. A golf club head comprising:

a head body made with metal and including a crown portion having a plurality of openings;

a crown part formed of a material smaller in specific gravity than a material forming the head body adapted to close said openings;

a support portion provided between said openings and supporting said crown part; and

a placing portion provided around said opening for mounting a peripheral portion of said crown part, wherein

said support portion extends inwardly of said openings from said placing portion, the support portion and placing portion are below the surface of the crown portion, and said crown part is adhered to said placing portion and said support portion and crown part completely covers said support portion.

2. The golf club head according to claim 1, wherein

said placing portion and said support portion are arranged inwardly of said head body from a surface of said crown portion positioned around said placing portion and said support portion by at least 0.5 mm and at most 2.0 mm.

3. The golf club head according to claim 1, wherein

said support portion has a thickness of at least 0.7 mm and at most 1.2 mm, and a width of at least 3 mm and at most 15 mm.

4. The golf club head according to claim 1, wherein

said head body includes a sole portion, and

a member greater in specific gravity than a material forming said head body is fixed to said sole portion.

5. The golf club head according to claim 1, wherein

said support portion has a surface area of at least 250 mm² and at most 1000 mm².

6. The golf club head according to claim 1, wherein

a ratio between a surface area of said support portion and an area of said openings is 1:

30–

1;

2.

7. The golf club head according to claim 1, wherein

an opening is provided to at least one of said support portion and said placing portion.

8. A golf club comprising the golf club head according to claim 1.

9. A golf club head comprising:

a head body made with metal and including a crown portion having a plurality of openings, a sole portion, a toe portion, and a heel portion;

a crown part formed of a material smaller in specific gravity than a material forming the head body mounted to said head body so as to close said openings;

an X-shaped support portion extending from an end, begin an end of said crown portion along said openings and positioned on said face portion side, continuously in a direction away from said face portion to define part of said openings and supporting said crown part; and

wherein the support portion is below the surface of the crown portion.

10. A golf club comprising the golf club head according to claim 9.