Golf club head and method of making the same
AssigneeSumitomo Rubber Industries, Ltd.
InventorMasanori Yabu
Life of this patent
Estimating the term…
Abstract
A golf club head comprises a hollow body having a cavity, a plurality of rib-like walls provided on the inner surface of the hollow body so as to extend backward from a position near the face portion, and a sound bar disposed behind the face portion so as to extend along the back face of the face portion. A method of making a golf club head comprises making a wax model of the hollow main body having an opening, wherein in order to prevent deformation of the wax model during making a casting mold, the wax model is provided with a brace which extends across the opening and protruding walls which are disposed on the inner surface of the wax model and extend backwards from the opening.
Claims18
A golf club head comprising
- a hollow body having a cavity and comprising a face portion having a front face defining a club face for hitting a ball and a back face facing said cavity,
- a plurality of ribs each having a height of from 0.3 to 5.0 mm and provided on the inner surface of the hollow body facing the cavity so as to extend backward from a position adjacent to the back face of the face portion, and
- at least one sound bar disposed behind the face portion and extending longitudinally along the back face portion, leaving a small space between each said sound bar and the back face, and each said sound bar having a cross sectional area in a range of 4 to 9 mm2 when measured perpendicularly to the longitudinal direction of the sound bar.
Dependencies are inferred from the claim text.