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US 2003/0228932 A1Published application
Golf club Head
AssigneeCallaway Golf Company
InventorsSteven M. Ehlers, John B. Kosmatka, Anthony V. Nigro, Matthew J. Erickson
Life of this patent
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Abstract
A golf club head having a matrix layer composed of an interconnected reinforcement structure and a polymer material is disclosed herein. The matrix layer provides the golf club head with a greater coefficient of restitution during impact with a golf ball. The matrix layer is preferably disposed within a recess in the front wall of the body of the golf club head. The interconnected reinforcement structure is preferably composed of interconnected hexagonal cells.
Claims25
A golf club head comprising:
- a body comprising a crown, a sole and a front wall, the body having a hollow interior, the body having a volume ranging from 300 cubic centimeters to 500 cubic centimeters;
- and
- a matrix layer disposed on the front wall, the matrix layer comprising a polymer material with an integrated reinforcement structure, the matrix layer having a thickness ranging from 0.010 inch to 0.250 inch.
A golf club head comprising:
- a body comprising a crown, a sole and a front wall, the body having a hollow interior, the body having a volume ranging from 300 cubic centimeters to 500 cubic centimeters, the body composed of a titanium alloy material, the front wall having a recess, the recess having a depth ranging from 0.040 inch to 0.250 inch;
- and
- a matrix layer disposed within the recess of the front wall, the matrix layer comprising a polymer material with an integrated reinforcement structure composed of interconnected hexagonal cells, each hexagonal cell having a cell size of 0.0625 inch to 0.100 inch, the matrix layer having a thickness ranging from 0.040 inch to 0.250 inch.
A wood-type golf club head comprising:
- a body comprising a crown, a sole and a front wall, the body having a hollow interior, the body having a volume ranging from 300 cubic centimeters to 500 cubic centimeters, the body composed of a titanium alloy material, the front wall having a recess, the recess having a depth ranging from 0.040 inch to 0.250 inch;
- and
- a matrix layer disposed within the recess of the front wall, the matrix layer comprising a thermoplastic polyurethane material with an integrated reinforcement structure composed of interconnected hexagonal cells, each hexagonal cell having a cell size of 0.0625 inch to 0.100 inch, the matrix layer having a thickness ranging from 0.040 inch to 0.250 inch;
- wherein the golf club head has a coefficient of restitution ranging from 0.82 to 0.93.
1 more element
A golf club head comprising:
- a body comprising a crown, a sole and a front wall, the body having a hollow interior, the body having a volume ranging from 300 cubic centimeters to 500 cubic centimeters, the body composed of a titanium alloy material, the front wall having a recess, the recess having a depth ranging from 0.040 inch to 0.250 inch;
- and
- a matrix layer disposed within the recess of the front wall, the matrix layer comprising a polymer material with an integrated reinforcement structure composed of interconnected hexagonal cells, each hexagonal cell having a cell size of 0.0625 inch to 0.100 inch, the matrix layer having a thickness ranging from 0.040 inch to 0.250 inch;
- wherein the golf club head has a moment of inertia, lzz, about the Z axis of the center of gravity of the golf club head ranging from 2700 g-cm2 to 4000 g-cm2.
1 more element
A golf club head comprising:
- a body composed of a metallic material and including a front wall having a recess formed therein;
- and
- a matrix layer disposed within the recess of the front wall, the matrix, the matrix layer comprising a reinforcement structure and a thermoplastic polyurethane material, the reinforcement structure including a plurality of integrated walls forming a plurality of integrated cells, the thermoplastic polyurethane material substantially filling the plurality of integrated cells of the reinforcement structure.
Dependencies are inferred from the claim text.