Multi-material golf club head
First Claim
1. A golf club head, comprising:
- a body including a front wall defining a striking face and a rear surface opposite said striking face;
an insert coupled to said rear surface, said insert having a varying rearward thickness,wherein said insert comprises a plurality of regions having different thicknesses and a thickness transition zone between each of the regions, wherein said plurality of regions comprises a first region of greatest thickness, said first region comprising a major portion of said insert;
wherein said plurality of regions comprises a first region having a first thickness, a second region having a second thickness, and a third region having a third thickness;
said first thickness being greater than said second thickness and said second thickness being greater than said third thickness;
wherein said first thickness is from 0.07 to 0.09 inch, said second thickness is from 0.03to 0.05 inch, and said third thickness is from 0.01 to 0.03 inch.
2 Assignments
0 Petitions
Accused Products
Abstract
A golf club head formed of multiple materials is disclosed. Those portions of the club head that are subject to high stresses during normal use of the golf club head are formed of a metallic material. Most of the material beyond what is required to maintain structural integrity, however, is removed and replaced with a lightweight material. This freed-up mass that can be redistributed to other, more beneficial locations of the club head. The lightweight material also damps vibrations generated during use of the golf club. This vibration damper may be retained in a state of compression to enhance the vibration damping. One or more weight members may be included to obtain desired center of gravity position, moments of inertia, and other club head attributes. A insert formed of multiple materials and having regions of varying thickness may also be included on a rear surface of the club head.
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Citations
23 Claims
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1. A golf club head, comprising:
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a body including a front wall defining a striking face and a rear surface opposite said striking face; an insert coupled to said rear surface, said insert having a varying rearward thickness, wherein said insert comprises a plurality of regions having different thicknesses and a thickness transition zone between each of the regions, wherein said plurality of regions comprises a first region of greatest thickness, said first region comprising a major portion of said insert; wherein said plurality of regions comprises a first region having a first thickness, a second region having a second thickness, and a third region having a third thickness; said first thickness being greater than said second thickness and said second thickness being greater than said third thickness; wherein said first thickness is from 0.07 to 0.09 inch, said second thickness is from 0.03to 0.05 inch, and said third thickness is from 0.01 to 0.03 inch.
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2. A golf club head, comprising:
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a body including a front wall defining a striking face and a rear surface opposite said striking face; an insert coupled to said rear surface, said insert having a varying rearward thickness, wherein said insert comprises a plurality of regions having different thicknesses and a thickness transition zone between each of the regions, wherein said plurality of regions comprises a first region of greatest thickness, said first region comprising a major portion of said insert; wherein said plurality of regions comprises a first region having a first thickness, a second region having a second thickness, and a third region having a third thickness; said first thickness being greater than said second thickness and said second thickness being greater than said third thickness; wherein said insert has a rear surface area and said first region comprises approximately 40-75% of said rear surface area, said second region comprises approximately 10-25% of said rear surface area, and said third region comprises 5-25% of said rear surface area.
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3. A golf club head, comprising:
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a body including a front wall defining a striking face and a rear surface opposite said striking face; an insert coupled to said rear surface, said insert having a varying rearward thickness, wherein said insert comprises a plurality of regions having different thicknesses and a thickness transition zone between each of the regions, wherein said plurality of regions comprises a first region of greatest thickness, said first region comprising a major portion of said insert; wherein said plurality of regions comprises a first region having a first thickness, a second region having a second thickness, and a third region having a third thickness; said first thickness being greater than said second thickness and said second thickness being greater than said third thickness; wherein said first region is positioned in a lower portion of the club head, said second region is positioned in an intermediate portion of the club head, and said third region is positioned in an upper portion of said club head.
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4. A golf club head, comprising:
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a body including a front wall defining a striking face and a rear surface opposite said striking face; and an insert assembly coupled to said rear surface, said insert assembly comprising both a free-layer damper and a constrained-layer damper, wherein said insert assembly comprises a first component formed of a viscoelastic material and positioned adjacent said rear surface and a second component formed of a material less rigid than the viscoelastic material and positioned adjacent to and rearward of said first component. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A golf club head, comprising:
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a body comprising a front wall defining a striking face and a rear surface opposite the striking face; and an insert coupled to the rear surface, wherein the insert has varying rearward thickness and a rear surface area, wherein the rear surface area comprises a first region of greatest thickness that comprises approximately 40-75% of the rear surface area, wherein the remainder of the rear surface area has a substantially uniform thickness; and a thickness transition zone between the first region and the remainder wherein the insert comprises a viscoelastic material. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification