IRON GOLF CLUB HEAD

• US 20080085782A1
• Filed: 09/25/2007
• Published: 04/10/2008
• Est. Priority Date: 10/06/2006
• Status: Active Grant

• Current Assignee: Bridgestone Sports Co Limited (Bridgestone Corporation)
• Original Assignee: Bridgestone Sports Co Limited (Bridgestone Corporation)
• Inventors: KUBOTA, Makoto
• Granted Patent: US 7,828,674 B2
• Time in Patent Office: Days
• US Class Current: 473/350
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 53/042 the face insert consisting of a material different from that of the head
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/047 iron-type
• CPC Class Codes: A63B 60/54 with means for damping vibrations

Abstract

An iron golf club head includes: a block that is made by a magnesium alloy; and a metal head main body, wherein the block is embedded into the metal head main body.

Claims

1. An iron golf club head comprising:

a block that is made by a magnesium alloy; and

a metal head main body, wherein

the block is embedded into the metal head main body.

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

the metal head main body is made by a metal which is harder than a magnesium alloy and has a greater specific gravity than that of the magnesium alloy.

3. The iron golf club head according to claim 1, further comprising:

a recess that is formed in the metal head main body; and

a metal cover, wherein;

the block is press-fitted into the recess; and

an opening of the recess is sealed with the metal cover to embed the block into the metal head main body.

4. The iron golf club head according to claim 3, wherein

the recess is formed in a sole surface of the metal head main body.

5. The iron golf club head according to claim 3, wherein

the recess is formed in a back surface of the metal head main body.

6. The iron golf club head according to claim 3, wherein

the recess is formed in an upper surface of the metal head main body.

7. The iron golf club head according to claim 3, further comprising

the metal cover is a face member.

8. The iron golf club head according to claim 3, further comprising

the block is fixed to the inside of the recess by caulking.