Golf club shaft
AssigneeSRI Sports Limited
InventorTomio Kumamoto
Life of this patent
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Abstract
A golf club shaft having a fiber reinforced thermosetting resinous material (10) and a fiber reinforced thermoplastic resinous material (20), wherein the fiber reinforced thermoplastic resinous material (20) having a vibration-damping factor not less than 1.0 has a weight not less than 10% nor more than 60% of a weight of the golf club shaft. The fiber reinforced thermoplastic resinous material (20) is disposed on a part of a peripheral surface of the golf club shaft, on an inner peripheral surface thereof or between layers of the fiber reinforced thermosetting resinous material (10).
Claims9
A golf club shaft having a fiber reinforced thermosetting resinous material and a fiber reinforced thermoplastic resinous material, wherein said fiber reinforced thermoplastic resinous material having a vibration-damping factor not less than 1.0 has a weight not less than 10% nor more than 60% of a weight of said golf club shaft.
Dependencies are inferred from the claim text.