Multiple material golf club head with a polymer insert face
First Claim
1. A golf club head comprising:
- a main body having a front face with a recess therein;
an insert disposed within the recess, the insert comprising a thermosetting polyurethane having a shore D hardness in the range of 42 to 55, and a Bayshore rebound in the range of 51 to 70;
an isolation layer having a first surface and a second surface disposed on the main body opposite of the front face; and
a weight body disposed on the first surface of the isolation layer.
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Accused Products
Abstract
The present invention is a golf club (30) having a club head main body (34) with a recess (38), an polymer insert (40) in the recess (38), an isolation layer (52) and a weight body (50). The polymer insert (40) is composed of a thermosetting polyurethane material having a Shore D hardness in the range of 42 to 55, and a Bayshore rebound in the range of 51 to 60. The preferred thermosetting polyurethane material is formed from a p-phenylene diisocyanate prepolymer and a curing agent. The golf club (30) is preferably a putter, however, it may be a wood or an iron. The particular thermosetting polyurethane provides a soft striking face for feel and a good rebound for distance. The weight body (50) is preferably composed of a tungsten alloy, and the isolation layer (52) is preferably composed of a thermoplastic polyurethane.
69 Citations
20 Claims
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1. A golf club head comprising:
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a main body having a front face with a recess therein;
an insert disposed within the recess, the insert comprising a thermosetting polyurethane having a shore D hardness in the range of 42 to 55, and a Bayshore rebound in the range of 51 to 70;
an isolation layer having a first surface and a second surface disposed on the main body opposite of the front face; and
a weight body disposed on the first surface of the isolation layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A golf club head comprising:
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a main body having a sole, a crown, a heel end a toe end and a face with a recess therein, the main body composed of carbon steel;
an insert comprising a thermosetting polyurethane formed from reactants comprising a p-phenylene disocyanate terminated polyester prepolymer in an amount up to 90 parts, a p-phenylene duisocyanate terminated polyether prepolymer in an amount up to 90 parts, 10 to 40 parts of a toluene diisocyanate polyurethane prepolymer, and at least one curing agent;
an isolation layer having a first surface and a second surface disposed on the main body, the isolation layer composed of a thermoplastic polyurethane;
a weight body composed of a tungsten alloy, the weight body disposed on the first surface of the isolation layer. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A putter head comprising:
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a club head main body comprising a sole, a crown, a toe section, a heel section, a rear section and a front face having a recess therein;
an insert disposed within the recess, the insert composed of a polymer material, the insert having a shore D hardness in the range of 42 to 55, and a Bayshore rebound in the range of 55 to 70;
an isolation layer having a first surface and a second surface, the second surface disposed on the rear section of the main body, the isolation layer having a thickness ranging from 0.020 inch to 0.100 inch and composed of a thermoplastic material; and
a weight body attached to the first surface of the isolation layer, the weight body weighing between 50 grams and 125 grams. - View Dependent Claims (19, 20)
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Specification