Metal Wood Club with Improved Moment of Inertia

a golf club and metal wood technology, applied in the field of improved metal wood golf club head, can solve the problems of limiting the mass characteristics of the club head, the shape of the driver club is substantially different, and the environmental effects are beyond the control of the golf equipment designer, so as to achieve the effect of greater density or thickness

Inactive Publication Date: 2009-06-11
ACUSHNET CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]The golf club head of the present invention includes two discrete weight members, one located on the sole toward the face and one located on the sole toward the back. Said sole weight members may have greater density or thickness than the surrounding sole material. Alternatively, said weight members may comprise weights

Problems solved by technology

Thus, a major challenge is to design the club face and club body to resist permanent deformation or failure by material yield or fracture.
However, these environmental effects are beyond the control of the golf equipment designers.
However, the '586 application limits t

Method used

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  • Metal Wood Club with Improved Moment of Inertia
  • Metal Wood Club with Improved Moment of Inertia
  • Metal Wood Club with Improved Moment of Inertia

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Embodiment Construction

[0024]Rotational moment of inertia (“MOI” or “inertia”) in golf clubs is well known in the art, and is fully discussed in many references, including U.S. Pat. No. 4,420,156, which is incorporated herein by reference in its entirety. When the inertia is too low, the club head tends to rotate excessively from off-center hits. A golf club head having a higher moment of inertia will resist rotation due to an off-center impact between the club face and a golf ball, thereby mitigating the tendency for the ball to hook or slice and increasing flight distance and landing accuracy. The present invention is directed to a hollow body golf club head having discrete concentrations of weight or mass located away from the center of gravity or the geometric center of the club head to optimize the moment of inertia of the club head about the vertical axis running through the center of gravity, hereinafter called the y-axis. In particular, the present invention is directed to a hollow body driver, hy...

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PUM

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Abstract

A golf club head having at least two discrete weight members positioned on the sole to optimize moment of inertia is disclosed. A first weight member is located toward and substantially parallel with the face edge of the sole. A second member is located toward the back of the sole and substantially centered between the heel and toe edges of the sole. In one embodiment, a golf club head includes a sole comprising four sections and wherein a rib of material connects two of said sections. In another embodiment, a golf club head includes a cavity formed between the crown and sole and having an opening at the back of the club head. In yet another embodiment, a golf club head is tapered to form a waist and has a back that has a bowed-shape.

Description

FIELD OF THE INVENTION[0001]The present invention relates to an improved metal wood golf club head. More particularly, the present invention relates to a driver, hybrid or utility-style hollow golf club head with an optimized moment of inertia.BACKGROUND OF THE INVENTION[0002]The complexities of golf club design are known. The specifications for each component of the club (i.e., the club head, shaft, grip, and subcomponents thereof) directly impact the performance of the club. Thus, by varying the design specifications, a golf club can be tailored to have specific performance characteristics.[0003]The design of club heads has long been studied. Among the more prominent considerations in club head design are loft, lie, face angle, horizontal face bulge, vertical face roll, center of gravity, rotational moment of inertia, material selection, and overall head weight. While this basic set of criteria is generally the focus of golf club designers, several other design aspects must also b...

Claims

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Application Information

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IPC IPC(8): A63B53/04
CPCA63B53/04A63B53/0466A63B2209/02A63B2053/0433A63B2053/0491A63B2053/0408A63B53/0408A63B53/0433A63B60/02A63B60/00
Inventor GOLDEN, CHARLES E.DE LA CRUZ, NOAHCALLINAN, DANIEL S.
Owner ACUSHNET CO
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