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US 9,168,430 B2Granted
Golf club head
AssigneeDunlop Sports Co. Ltd.
InventorNaruhiro Mizutani
Life of this patent
Estimating the term…
Abstract
A hollow golf club head comprises a head main body made of a metallic material and having a bottom portion including a first portion and a second portion being connected with the first portion having difference in level, and at least one weight member having a specific gravity larger than that of the head main body and attached to the second portion of the head main body.
Claims7
A hollow golf club head comprising
- a head main body made of a metallic material and having a bottom portion provided with a recess, the bottom portion recess comprising a toe-side primary portion, a heel-side primary portion, and a secondary portion provided between the heel-side portion and the toe-side portion, wherein the height of the toe-side primary portion and the height of the heel-side primary portion are both greater than the height of the secondary portion, and wherein the secondary portion has a thickness larger than those of the toe-side primary portion and the heel-side primary portion, and
- at least one weight member having a specific gravity larger than that of said head main body, said weight member comprising a first weight member attached to the toe-side primary portion of said bottom portion recess and a second weight member attached to the heel-side primary portion of said bottom portion recess.
A hollow golf club head comprising
- a head main body made of a metallic material and having a bottom portion provided with a recess, the bottom portion recess comprising a toe-side primary portion, a heel-side primary portion, and a secondary portion provided between the heel-side portion and the toe-side portion, wherein the height of the toe-side primary portion and the height of the heel-side primary portion are both greater than the height of the secondary portion, and wherein the secondary portion has a thickness smaller than that of the remainder of the bottom portion around the recess, and
- at least one weight member having a specific gravity larger than that of said head main body, said weight member comprising a first weight member attached to the toe-side primary portion of said bottom portion recess and a second weight member attached to the heel-side primary portion of said bottom portion recess.
Dependencies are inferred from the claim text.