Golf club head

• US 20070298906A1
• Filed: 05/08/2007
• Published: 12/27/2007
• Est. Priority Date: 06/27/2006
• Status: Abandoned Application

• Current Assignee: SRI Sports Limited (Sumitomo Rubber Industries Limited)
• Original Assignee: SRI Sports Limited (Sumitomo Rubber Industries Limited)
• Inventors: Oyama, Hitoshi
• Application Number:
  US11/797,863
• Publication Number:
  US 20070298906A1
• Time in Patent Office: Days
• US Class Current: 473/350
• 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 53/0412 Volume
• 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 53/0437 with special crown configurations
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 60/02 Ballast means for adjusting the centre of mass A63B60/24, A63B60/54 take precedence

Abstract

A wood-type golf club head has a hollow shell structure having a head length L (mm), a head-depth W (mm) and a sweet spot height H (mm) which satisfy: 0.80≦W/L≦1.0 and H≦76×(W/L)−31. The head length L is the distance between the clubshaft axis CL and a point T farthest from the clubshaft axis CL. The head depth W is the distance between a plane FP tangent to the sweet spot SS and a point B farthest from the plane FP.

Claims

1. A wood-type golf club head having a hollow structure having a head length L (mm), a head depth W (mm) and a sweet spot height H (mm) which satisfy

0.80≦

W/L≦

1.0 and H≦

76×

(W/L)−

31.

2. The club head according to claim 1, wherein

the head length L (mm), head depth W (mm) and sweet spot height H (mm) satisfy

H≦

76×

(W/L)−

34.

3. The club head according to claim 1, wherein

the head length L (mm), head depth W (mm) and sweet spot height H (mm) satisfy

H≦

76×

(W/L)−

39.

4. The club head according to claim 1, wherein

the head depth W (mm) satisfies

0.060W≦

Q≦

0.25W

wherein “

Q”

is a distance (mm) of a sweet spot measured perpendicular to and from a vertical plane including the axis of a shaft inserting hole.

5. The club head according to claim 1, wherein

the volume of the head is 350 to 470 cc, and

the mass of the head is 180 to 220 grams.