Golf club head
View Patent ↗Provided is a golf club head having a reduced weight while also preventing degradation in the ball hitting sound. The golf club head includes a head body that is a hollow structure, and a rib that rises from an inner surface of the head body. An opening having a non-circular shape is formed in a side surface of the rib. Note that the opening referred to here may be a through-hole or an opening that has a bottom.
1. A golf club head comprising:
a head body that is a hollow structure; and
a rib that rises from first inner surface of the head body and does not reach a second inner surface of the head body, the second inner surface opposing the first inner surface,
wherein an opening having a non-circular shape is formed in a side surface of the rib.
2. The golf club head according to claim 1 , wherein the opening has a polygonal shape.
3. The golf club head according to claim 2 , wherein the opening has a triangular shape.
4. The golf club head according to claim 1 , wherein a plurality of openings are formed in the side surface of the rib.
5. The golf club head according to claim 3 , wherein a plurality of openings having a triangular shape are formed in the side surface of the rib, the plurality of openings being aligned in a mode in which the rib at least partially forms a truss structure.
6. The golf club head according to claim 1 , wherein the rib and at least a portion of the head body are formed integrally.
7. The golf club head according to claim 1 , wherein the rib is manufactured separately from the head body and thereafter fixedly attached to at least a portion of the head body.
8. The golf club head according to claim 1 , wherein the volume occupied by the opening is in a range of 10% to 70% of the volume occupied by the rib.
9. The golf club head according to claim 1 ,
wherein the head body has a sole portion, and
the rib is formed on at least an inner surface of the sole portion.
10. The golf club head according to claim 1 ,
wherein the head body has a crown portion, and
the rib is formed on at least an inner surface of the crown portion.
11. The golf club head according to claim 1 ,
wherein the head body has a face portion, and
the rib is formed on at least an inner surface of the face portion.
12. The golf club head according to claim 1 , wherein the opening is formed on the side surface of the rib in a vicinity of a node of vibration of the head body.
13. The golf club head according to claim 1 , wherein the golf club head is a driver.
14. The golf club head according to claim 1 , wherein a height of the rib at the highest point is 3 mm to 10 mm.
15. The golf club head according to claim 1 , wherein said opening has a quadrangular shape.
16. The golf club head according to claim 1 , wherein said opening has a square shape.