Mizuno Corporation

Mizuno Technics Corporation

Takayuki Mine

Kei Tsuji

David Gregory Llewellyn

Tetsuya Oono

Tatsuya Wakako

Mitsuyasu Ito

A golf club head includes a face, a sole, and a weight member. The sole includes a guide groove having a plurality of positioning grooves. The weight member includes a plurality of protrusions, and is positioned in the guide groove with the plurality of protrusions engaging with the plurality of positioning grooves. The plurality of positioning grooves each include a pair of sidewalls formed in an arc shape and a bottom connecting the sidewalls to each other. The plurality of protrusions each include a pair of side surfaces formed in an arc shape and a ridge connecting the side surfaces to each other.

Golf club head and golf club

An adjustable golf club head and weight structure is disclosed. The adjustable golf club head can include a crown, a toe, a hosel, and a sole. The sole of the club head may have one or more tracks located thereon. Each of the one or more tracks can have one or more weights secured therein. Each of the one or more weights can include an upper weight portion, and a lower weight portion. A screw can be positioned to adjoin the upper weight portion and the lower weight portion. The weight can also include a clip fastened to the screw such that the clip retains the screw within bores located in the upper and lower weight portions. In order to prevent the upper and lower weight portions from rotating with respect to one another, the weight can include an alignment portion and an alignment receptacle.

Adjustable metal wood golf club head with moveable weight structure

Growing community of inventors

Gifu, Japan

Takayuki Mine