Abstract: A metallic frame-shaped iron head body is composed of a heel section, a toe section, an upper edge section connecting superior ends of the heel section and of the toe section, and a sole section. On a front face of the head body, a metallic thin-walled face section having a high coefficient of restitution is provided. The head body includes rear wall sections spaced apart from the face section and extending upward from a rear end of the sole section. A reinforced fiber member is placed in an area surrounded by the face section, the sole section, and the rear wall sections. This reinforced fiber member abuts on a back of the face section to form a closed hollow void section, and apart of a back of the reinforced fiber member is supported on the rear wall sections.

Abstract: A golf club head has a face plate of high strength and high resilience and which provides excellent directional stability of the ball trajectory. The golf club head comprises a thick-walled portion 3 at the center of the face plate 2, and at least four narrow ribs 4a and 4b. Each of the ribs is formed with a thickness not substantially exceeding the thickness of the thick-walled portion, and extends radially from the thick-walled portion toward the perimeter of the face plate. Thin-walled portions 5 are formed between the thick-walled portion and the narrow ribs.

Abstract: An iron golf club head includes a head body and a front face plate made of a highly resilient metal which is attached to a front of the head body. A thick-walled portion is formed in the back of the lower central part of the front face plate. Multiple narrow ribs are formed to radially extend from the thick-walled portion toward the upper and lateral peripheral parts of the front face plate, and the ribs have a thickness not substantially exceeding the thickness of the thick-walled portion. Broad thin-walled portions arc formed between the adjacent ribs.

Abstract: There is provided an iron golf club head comprising a head body and a face plate made of a highly resilient metal which is attached to a front face of said head body, wherein a thick-walled portion is formed in the lower central part of said face plate; multiple narrow ribs are formed to radially extend from said thick-walled portion toward the upper and lateral peripheral parts of said face plate, said ribs having a thickness not substantially exceeding the thickness of said thick-walled portion; and broad thin-walled portions are formed between said adjacent ribs.

Abstract: There is provided a golf club head having a face plate of high strength and high resilience and having an excellent directional stability of the ball trajectory. The golf club head comprises a thick-walled portion 3 at the center of the face plate 2, at least four narrow ribs 4a and 4b, each formed with thickness not substantially exceeding the thickness of the thick-walled portion and extending radially from the thick-walled portion toward the perimeter of the face plate, and thin-walled portions 5 formed between said thick-walled portion and said narrow ribs.