Golf club head with sound tuning

Abstract

A golf club head with sound tuning. The golf club head includes a hollow body that defines an interior cavity and a sound tuning feature inside the hollow body. The dimensions and location of the tuning feature are selected to alter the vibration behavior of the golf club head.

Description

FIELD OF THE INVENTION[0001]This invention generally relates to golf club heads, and more specifically to hollow golf club heads including sound tuning features.BACKGROUND OF THE INVENTION[0002]As the size of hollow golf club heads has increased, weight distribution has become a major design consideration. In particular, in the quest to design a golf club head of a desired volume while providing discretionary mass, it has become desirable to decrease the wall thicknesses of the portions that do not contribute directly to improved mass properties. Because of the thin wall and the large volumes of the golf club head, large portions of the head act as membranes and vibrate relative to each other. In some instances, the vibration takes place at a relatively low frequency, which results in unappealing sound and feel during impact between the golf club head and a golf ball.[0003]Previous attempts to tune the sound of the golf club heads have generally included adding material to increase ...

AI Technical Summary

Benefits of technology

[0008]In an embodiment, a golf club head includes a body including a crown portion and a sole portion and defines an interior cavity. The crown portion includes a first crown thickness area having a first crown thickness, a second crown thickness area having a second crown thickness that is greater than the first crown thickness, and a crown transition. The crown transition defines an interface between the first crown thickness area and the second crown thickness area and is located on the crown portion at a location that exhibits at least 75% of a maximum displacement of a vibration mode having a frequency less than about 3600 Hz. The sole portion includes a first sole thickness area having a first sole thickness, a second sole thickness area having a second sole thickness that is greater than the first sole thickness, and a sole transition. The sole transition defines an interface between the first sole thickness area and the second sole thickness area and is located on the sole portion at a location that exhibits at least 75% of a maximum displacement of a vibration mode having a frequency less than about 4100 Hz.

[0009]In another embodiment, a golf club head includes a body and a truss system. the body includes a crown portion and a sole portion and defines an interior cavity. The truss system comprises a first rib disposed on the sole portion. The s

Problems solved by technology

In some instances, the vibration takes place at a relatively low frequency, which results in unappealing sound and feel during impact between the golf club head and a golf ball.

Unfortunately, oftentimes the addition of ribs in the sole and crown reduces the discretionary mass of the club head and forces additional mass to be placed in less ideal locations for manipulating the center of gravity and the moment of inertia of the club head.

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