Golf club head
AssigneeSumitomo Rubber Industries, Ltd.
InventorMasatoshi Kato
Life of this patent
Estimating the term…
Abstract
The golf club head according to the present invention includes a face portion, a crown portion and a sole portion, the crown portion including a first region extending in a toe-heel direction along at least part of the face portion, a second region arranged further on a back side than the first region, and a step region extending in the toe-heel direction between the first region and the second region and extending downward toward the second region from the first region side, and the second region including a first part arranged in a vicinity of the middle in the toe-heel direction and contacting the step region, and a second part having a thinner wall thickness than the first part and arranged to surround a periphery of the first part on the back side, the toe side and the heel side of the first part.
Claims10
A golf club head comprising:
- a face portion;
- a crown portion;
- and
- a sole portion,
- wherein the crown portion includes:
- a first region extending in a toe-heel direction along at least part of the face portion;
- a second region arranged further on a back side than the first region;
- and
- a step region extending in the toe-heel direction between the first region and the second region, and extending downward toward the second region from the first region side,
- wherein the second region includes:
- a first part arranged in the vicinity of the second region middle portion in the toe-heel direction, and contacting the step region;
- and
- a second part having a thinner wall thickness than the first part, and arranged to surround a periphery of the first part on the back side, the toe side and the heel side of the first part, and wherein the first part length in a face-back direction is 15 to 50% of the second region length in the face-back direction.
A golf club head comprising:
- a face portion;
- a crown portion;
- and
- a sole portion,
- wherein the crown portion includes:
- a first region extending in a toe-heel direction along at least part of the face portion;
- a second region arranged further on a back side than the first region;
- and
- a step region extending in the toe-heel direction between the first region and the second region, and extending downward toward the second region from the first region side,
- wherein the second region includes:
- a first part arranged in the vicinity of the second region middle portion in the toe-heel direction, and contacting the step region;
- and
- a second part having a thinner wall thickness than the first part, and arranged to surround a periphery of the first part on the back side, the toe side and the heel side of the first part, and wherein the first part length in the toe-heel direction is 20 to 75% of the second region length in the toe-heel direction.
A golf club head comprising:
- a face portion;
- a crown portion;
- and
- a sole portion,
- wherein the crown portion includes:
- a first region extending in a toe-heel direction along at least part of the face portion;
- a second region arranged further on a back side than the first region;
- and
- a step region extending in the toe-heel direction between the first region and the second region, and extending downward toward the second region from the first region side,
- wherein the second region includes:
- a first part arranged in the vicinity of the second region middle portion in the toe-heel direction, and contacting the step region;
- and
- a second part having a thinner wall thickness than the first part, and arranged to surround a periphery of the first part on the back side, the toe side and the heel side of the first part, and
- the first part is formed such that the first part length in the toe-heel direction becomes shorter moving toward the back side.
Dependencies are inferred from the claim text.