GOLF CLUB HEAD AND GOLF CLUB

• US 20150273287A1
• Filed: 03/26/2015
• Published: 10/01/2015
• Est. Priority Date: 03/28/2014
• Status: Abandoned Application

• Current Assignee: Mizuno Corporation
• Original Assignee: Mizuno Corporation
• Inventors: Doi, Kazuhiro, Sakamoto, Tsugunobu
• Application Number:
  US14/669,249
• Publication Number:
  US 20150273287A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/047 iron-type

Abstract

A main body portion including a face and a recess formed on a back side of the face, an intermediate member being arranged in the recess, including a first member and a second member, and having a smaller specific gravity than the main body portion, and a high specific gravity member being arranged on a side opposite to the main body portion when viewed from the intermediate member and having a higher specific gravity than the intermediate member are provided.

Claims

1. A golf club head comprising:

a main body portion including a face and a recess formed on a back side of said face;

an intermediate member being arranged in said recess, including a first member and a second member, and having a lower specific gravity than said main body portion; and

a high specific gravity member being arranged on a side opposite to said main body portion when viewed from said intermediate member, and having a higher specific gravity than said intermediate member.

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

said first member has a lower specific gravity than said main body portion, and

said second member has a lower specific gravity than said first member.

3. The golf club head according to claim 2, wherein said first member is constituted of a metal material, and said second member is constituted of a resin material.

4. The golf club head according to claim 1, wherein said recess is formed in a region overlapping with at least a part of a hitting position of said face when viewed from said face.

5. The golf club head according to claim 1, wherein in said intermediate member, said first member is joined to said main body portion, and said second member is joined to said high specific gravity member.

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

said main body portion includes a heel portion located at an end portion on a side of a shaft and a toe portion located at an end portion on an opposite side of said heel portion with respect to said face, and

in a direction from said heel portion toward said toe portion, a thickness of a central portion of said first member is relatively larger than a thickness of a portion other than said central portion in said first member.

7. The golf club head according to claim 6, wherein said central portion of said first member is provided so as to overlap with at least a portion of a hitting position of said face.

8. The golf club head according to claim 1, wherein an adhesive is used to join said first member and said second member and to join said intermediate member and said high specific gravity member.

9. The golf club head according to claim 1, wherein said main body portion, said intermediate member, and said high specific gravity member are integrally formed without a hollow portion.

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