WOOD GOLF CLUB HEAD AND WOOD GOLF CLUB

• US 20160271463A1
• Filed: 03/17/2016
• Published: 09/22/2016
• Est. Priority Date: 03/18/2015
• Status: Abandoned Application

• Current Assignee: Mizuno Corporation
• Original Assignee: Mizuno Corporation
• Inventors: Ishida, Kazuya
• Application Number:
  US15/072,587
• Publication Number:
  US 20160271463A1
• 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 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0412 Volume
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0437 with special crown configurations
• CPC Class Codes: A63B 53/0466 wood-type

Abstract

A wood golf club head used for a driver, comprises: a face portion having a ball hitting surface; a heel portion located at an end on the side of a shaft relative to the ball hitting surface; and a toe portion located at an end facing away from the heel portion relative to the ball hitting surface. A ratio of a maximum length (L1 (unit: mm)) of the wood golf club head in a direction from the heel portion toward the toe portion relative to the volume of the wood golf club head (unit: cm³) is equal to or greater than 0.30 and equal to or less than 1.04.

Claims

1. A wood golf club head used for a driver, comprising:

a face portion having a ball hitting surface;

a heel portion located at an end on a side of a shaft relative to the ball hitting surface; and

a toe portion located at an end facing away from the heel portion relative to the ball hitting surface,

a ratio of a maximum length L1 (unit;

mm) of the wood golf club head in a direction from the heel portion toward the toe portion relative to a volume of the wood golf club head (unit;

cm³) being equal to or greater than 0.30 and equal to or less than 1.04.

4. The wood golf club head according to claim 1, wherein a concave area is formed in a region behind the ball hitting surface located on a side of the toe portion.

5. The wood golf club head according to claim 4, comprising a fixed member fixed to at least a portion of the concave area, wherein the fixed member is formed of a material having a lower specific gravity than a material forming the face portion.

6. The wood golf club head according to claim 5, wherein the fixed member has a volume equal to or greater than 14% of an overall volume of the wood golf club head and equal to or less than 75% of the overall volume of the wood golf club head.

7. The wood golf club head according to claim 4, wherein the concave area has a wall portion isolating an interior of the wood golf club head from outside.

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

2. A wood golf club head used for a fairway wood, comprising:

a face portion having a ball hitting surface;

a heel portion located at an end on a side of a shaft relative to the ball hitting surface; and

a toe portion located at an end facing away from the heel portion relative to the ball hitting surface,

a ratio of a maximum length L1 (unit;

mm) of the wood golf club head in a direction from the heel portion toward the toe portion relative to a volume of the wood golf club head (unit;

cm³) being equal to or greater than 0.60 and equal to or less than 2.31.

3. A wood golf club head used for a utility crab, comprising:

a face portion having a ball hitting surface;

a heel portion located at an end on a side of a shaft relative to the ball hitting surface; and

a toe portion located at an end facing away from the heel portion relative to the ball hitting surface,

a ratio of a maximum length L1 (unit;

mm) of the wood golf club head in a direction from the heel portion toward the toe portion relative to a volume of the wood golf club head (unit;

cm³) being equal to or greater than 0.94 and equal to or less than 3.43.