Putter head

• US 7,588,499 B2
• Filed: 04/09/2007
• Issued: 09/15/2009
• Est. Priority Date: 04/07/2006
• Status: Expired due to Fees

• Current Assignee: Bridgestone Sports Co Limited (Bridgestone Corporation)
• Original Assignee: Bridgestone Sports Co Limited (Bridgestone Corporation)
• Inventors: Tateno, Atsuo
• Primary Examiner(s): Passaniti; Sebastiano
• Application Number:
  US11/783,353
• Publication Number:
  US 20070238550A1
• Time in Patent Office: 890 Days
• Field of Search: 473219-256, 473324-350, 473313-314, 473282-293, D21736-746
• US Class Current: 473/251
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0441 with visual indicators for aligning the golf club
• CPC Class Codes: A63B 53/045 Strengthening ribs
• CPC Class Codes: A63B 53/0487 for putters A63B53/065 takes precedence
• CPC Class Codes: A63B 60/02 Ballast means for adjusting the centre of mass A63B60/24, A63B60/54 take precedence
• CPC Class Codes: A63B 60/50 with through-holes A63B60/18 takes precedence; for stringing purposes A63B49/00

Abstract

A putter head includes a head main body that defines a periphery of the putter head, and a bar that crosses a void space of the head main body in a forward-backward direction. The bar is inserted into insertion holes and fixed thereto by an adhesive. A face member is mounted on a recess. A shaft fixing hole is provided to pass through the bar from the top surface of a front portion of the head main body. A shaft is inserted into the shaft fixing hole and fixed thereto by an adhesive.

Claims

1. A putter head formed with a shaft fixing hole, comprising:

a head main body formed with a void space at its central part; and

a bar that crosses the void space in a forward-backward direction,

wherein;

the head main body and the bar are separate parts,

the bar extends longitudinally from front to rear and is centrally located from heel toe,

the bar is inserted into a bar insertion hole extending from a front end surface or a rear end surface of the head main body in the forward-backward direction,

a cover is mounted on the head main body to close the bar insertion hole, and

the shaft fixing hole is provided in the bar.

2. The putter head according to claim 1, wherein a recess is formed in the front end surface of the putter head, the bar insertion hole is formed in a bottom wall of the recess, and a face member as the cover is mounted on the recess.

3. The putter head according to claim 1, wherein a recess is formed in the rear end surface of the putter head, the bar insertion hole is formed in a bottom wall of the recess, and the cover is mounted on the recess.

4. The putter head according to claim 1, wherein colors of the head main body and the bar are different from each other.

5. The putter head according to claim 1, wherein a volume of the void space is in a range of 8000 to 100000 mm³.

6. The putter head according to claim 1, wherein a length of the bar inside the void space is in a range of 30 to 80 mm.

7. The putter head according to claim 1, wherein the void space is a through-hole vertically passing through the head main body.

8. The putter head according to claim 1, wherein the void space is a concave portion recessed from a top surface of the head main body.

9. A putter head formed with a shaft fixing hole, comprising:

a head main body formed with a void space at its central part; and

a bar that crosses the void space in a forward-backward direction,

wherein;

the head main body and the bar are separate parts,

the bar extends longitudinally from front to rear and is centrally located from heel to toe,

the bar is inserted into a bar insertion hole extending from a front end surface or a rear end surface of the head main body in the forward-backward direction,

a cover is mounted on the head main body to close the bar insertion hole, and

the shaft fixing hole extends from a top surface of the head main body at a front portion of the putter head through the bar.

10. The putter head according to claim 9, wherein a recess is formed in the front end surface of the putter head, the bar insertion hole is formed in a bottom wall of the recess, and a face member as the cover is mounted on the recess.

11. The putter head according to claim 9, wherein a recess is formed in the rear end surface of the putter head, the bar insertion hole is formed in a bottom wall of the recess, and the cover is mounted on the recess.