Metal wood club with improved hitting face
First Claim
1. A golf club head comprising:
- a hitting face having,a central zone having a first flexural stiffness, andan intermediate zone concentric with the central zone;
wherein the intermediate zone has a second flexural stiffness that is lower than the first flexural stiffness;
wherein the central zone is positioned at a geometric center of the hitting face; and
wherein a projected area of the central zone is less than about 10% of a total projected area of the hitting face;
the projected area of the central zone and the projected area of the hitting face are calculated based on a two-dimensional frontal projection of the hitting face taken from a front view of the striking face.
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Accused Products
Abstract
A hitting face of a golf club head having a location of longest characteristic time shifted away from the geometric center of the hitting face. In one embodiment, the hitting face is made from multiple materials. In another embodiment, the hitting face as a central zone that is thicker than the surrounding material. In another embodiment, a dense insert is attached directly or indirectly to a plate-like face insert at or near the geometric center of the insert. In another embodiment, the central zone of the hitting face is reinforced with ribs. In another embodiment, the central zone is elliptical with varying thickness. In this embodiment, the central zone minor axis is thinner than the major axis. The central zone is positioned within the hitting face such that the minor axis is oriented from the low heel region to the high toe region.
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Citations
19 Claims
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1. A golf club head comprising:
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a hitting face having, a central zone having a first flexural stiffness, and an intermediate zone concentric with the central zone; wherein the intermediate zone has a second flexural stiffness that is lower than the first flexural stiffness; wherein the central zone is positioned at a geometric center of the hitting face; and wherein a projected area of the central zone is less than about 10% of a total projected area of the hitting face; the projected area of the central zone and the projected area of the hitting face are calculated based on a two-dimensional frontal projection of the hitting face taken from a front view of the striking face. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A golf club head comprising:
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a hitting face having, a central zone having a first flexural stiffness; and an intermediate zone having a second flexural stiffness, wherein the second flexural stiffness is lower than the first flexural stiffness, and wherein the intermediate zone is thinner than the central zone, wherein a projected area of the central zone is less than about 10% of a total projected area of the hitting face; the projected area of the central zone and the projected area of the hitting face are calculated based on a two-dimensional frontal projection of the hitting face taken from a front view of the striking face. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A golf club head comprising:
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a hitting face having, a central zone having a first flexural stiffness; and an intermediate zone having a second flexural stiffness, wherein the second flexural stiffness is lower than the first flexural stiffness, wherein the central zone has a thickness of less than 4.5 mm, wherein the intermediate zone has a thickness of between 2.00 mm to about 4.5 mm, and wherein a projected area of the central zone is less than about 10% of a total projected area of the hitting face; the projected area of the central zone and the projected area of the hitting face are calculated based on a two-dimensional frontal projection of the hitting face taken from a front view of the striking face. - View Dependent Claims (17, 18, 19)
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Specification