Putter head

• US 20070099723A1
• Filed: 06/26/2006
• Published: 05/03/2007
• Est. Priority Date: 10/31/2005
• Status: Abandoned Application

• Current Assignee: Bridgestone Sports Co Limited (Bridgestone Corporation)
• Original Assignee: Bridgestone Sports Co Limited (Bridgestone Corporation)
• Inventors: Tateno, Atsuo
• Application Number:
  US11/474,346
• Publication Number:
  US 20070099723A1
• Time in Patent Office: Days
• US Class Current: 473/340
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0425 the face insert comprising two or more different materials
• CPC Class Codes: A63B 53/0462 characterised by tapering thickness of the impact face plate
• CPC Class Codes: A63B 53/0487 for putters A63B53/065 takes precedence

Abstract

A putter head that includes: a head body having a face portion; and a face insert fitted in the face portion of a head body, the face insert including: a high-hardness portion that forms a hitting surface, and a low-hardness portion jointed to the high-hardness portion and having a hardness lower than that of the high-hardness portion. A thickness of the high-hardness portion is decreased or increased from a central portion toward a peripheral portion.

Claims

1. A putter head comprising:

a head body having a face portion; and

a face insert fitted in the face portion of a head body, the face insert including;

a high-hardness portion that forms a hitting surface, and a low-hardness portion jointed to the high-hardness portion and having a hardness lower than that of the high-hardness portion,

wherein a thickness of the high-hardness portion is decreased from a central portion toward a peripheral portion.

3. The putter head according to claim 1, wherein the Shore D hardness of the high-hardness portion is 30 or more, the Shore D hardness of the low-hardness portion is 10 or more, and the difference in the Shore D hardness between the high-hardness portion and the low-hardness portion is 5 or more.

5. The putter head according to claim 1, wherein at least one of the high-hardness portion and the low-hardness portion is formed of an elastomer.

7. The putter head according to claim 1, wherein at least one of the high-hardness portion and the low-hardness portion is formed of a urethane resin.

2. A putter head comprising:

a head body having a face portion; and

a face insert fitted in the face portion of a head body, the face insert including;

a high-hardness portion that forms a hitting surface, and a low-hardness portion jointed to the high-hardness portion and having a hardness lower than that of the high-hardness portion,

wherein a thickness of the high-hardness portion is increased from a central portion toward a peripheral portion.

4. The putter head according to claim 2, wherein the Shore D hardness of the high-hardness portion is 30 or more, the Shore D hardness of the low-hardness portion is 10 or more, and the difference in the Shore D hardness between the high-hardness portion and the low-hardness portion is 5 or more.

6. The putter head according to claim 2, wherein at least one of the high-hardness portion and the low-hardness portion is formed of an elastomer.

8. The putter head according to claim 2, wherein at least one of the high-hardness portion and the low-hardness portion is formed of a urethane resin.