Iron-type golf club head
AssigneeK.K. Endo Seisakusho
InventorKenji Kobayashi
Life of this patent
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Abstract
An iron-type golf club head having a larger sweet area while insuring a strength of a head. A back surface 1A of a metallic head body 1 is formed with plural rectangular cavities 5, 5A of different dimensions, opposite to the face 4 of the head body 1. The cavities 5, 5A are formed by forging, thus forming even and fine tissues and grain flow. Accordingly, the toughness and durability of material can be enhanced, so that the face 4 can be made thinner to a 1.0 to 3.5 mm thickness for an optimal weight distribution. As a result, a larger sweet area can be realized without damaging a strength of head.
Claims10
An iron-type golf club head comprising:
- an iron-type metallic head body having a shaft attaching portion at one side and a face at its front side;
- a plurality of cavities formed in a back surface of distinct said iron-type head body, each being rectangular shaped both in profile and plan view opposite to the face thereof, said cavities being formed by forging, whereby forging of said cavities increases the grain flow of the metallic head body within said cavities.
Dependencies are inferred from the claim text.