Iron golf club head made of fiber-reinforced resin
First Claim
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1. An iron golf club head made of a fiber-reinforced resin, comprising:
- a frame having a sole portion and a hosel portion molded integrally from stainless steel, said sole portion having a recess formed in its upper surface;
a core portion disposed above the upper surface of said sole portion of said frame;
a separate weight comprising a molded composite of from 92 to 98% by weight of powdery tungsten and a polyamide resin, said weight being disposed in said recess in said sole portion between the sole portion and said core portion, said weight having a specific gravity greater than that of the stainless steel of said frame; and
a fiber-reinforced resin covering the outer periphery of said core portion and the outer periphery of said frame other than said sole portion.
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Abstract
An iron golf club head having a sole and a hosel molded integrally as a frame from a metallic material, a core portion disposed in an upper part above the sole and the outer periphery of the core portion and the outer periphery of the frame except for the sole are covered with a fiber-reinforced resin and a weight having a greater specific gravity than the metallic material of the frame disposed between the sole and the core portion. The weight consists of a mass of 92 to 98 wt. % of powdery tungsten mixed in a polyamide resin.
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Citations
11 Claims
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1. An iron golf club head made of a fiber-reinforced resin, comprising:
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a frame having a sole portion and a hosel portion molded integrally from stainless steel, said sole portion having a recess formed in its upper surface; a core portion disposed above the upper surface of said sole portion of said frame; a separate weight comprising a molded composite of from 92 to 98% by weight of powdery tungsten and a polyamide resin, said weight being disposed in said recess in said sole portion between the sole portion and said core portion, said weight having a specific gravity greater than that of the stainless steel of said frame; and a fiber-reinforced resin covering the outer periphery of said core portion and the outer periphery of said frame other than said sole portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification