Wood-type golf club head
First Claim
1. A hollow wood-type golf club head comprising a face portion having a face for hitting a golf ball, a sole portion constituting the bottom of the club head, and a junction interconnecting the face portion and the sole portion and including at least one thick wall portion, said at least one thick wall portion having a thickness larger than a thickness at a lower edge of the face portion and having a length L of 20 mm or more wherein the length L is a total of lengths in a toe-heel direction of said at least one thick wall portion disposed in the club head, wherein a ratio L/La of the length L of said at least one thick wall portion to a length La of said junction is from 0.10 to 0.90.
3 Assignments
0 Petitions
Accused Products
Abstract
A hollow wood-type golf club head 1 capable of controlling the spring effect without excessively increasing the weight of a face portion, the club head 1 comprising a face portion 3 having a face 2 for hitting a golf ball, a sole portion 5 constituting the bottom of the club head, and a junction 8 interconnecting the face portion and the sole portion and including at least one thick wall portion 9 having a thickness t2 larger than a thickness t1 at a lower edge of the face portion 3 and having a length L of 20 mm or more wherein the length L is a total of lengths in a toe-heel direction of said at least one thick wall portion 9.
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Citations
17 Claims
- 1. A hollow wood-type golf club head comprising a face portion having a face for hitting a golf ball, a sole portion constituting the bottom of the club head, and a junction interconnecting the face portion and the sole portion and including at least one thick wall portion, said at least one thick wall portion having a thickness larger than a thickness at a lower edge of the face portion and having a length L of 20 mm or more wherein the length L is a total of lengths in a toe-heel direction of said at least one thick wall portion disposed in the club head, wherein a ratio L/La of the length L of said at least one thick wall portion to a length La of said junction is from 0.10 to 0.90.
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15. A hollow wood-type golf club head comprising a face portion having a face for hitting a golf ball, a sole portion constituting the bottom of the club head, and a junction interconnecting the face portion and the sole portion and including at least one thick wall portion, said at least one thick wall portion having a thickness larger than a thickness at a lower edge of the face portion and having a length L of 20 mm or more wherein the length L is a total of lengths in a toe-heel direction of said at least one thick wall portion disposed in the club head, wherein a plurality of thick wall portions are disposed at intervals at the junction.
- 16. A hollow wood-type golf club head comprising a face portion having a face for hitting a golf ball, a sole portion constituting the bottom of the club head, and a junction interconnecting the face portion and the sole portion and including at least one thick wall portion, said at least one thick wall portion having a thickness larger than a thickness at a lower edge of the face portion and having a length L of 20 mm or more wherein the length L is a total of lengths in a toe-heel direction of said at least one thick wall portion disposed in the club head, wherein thickness t2 of said at least one thick wall portion is larger than thickness t1 at the lower edge of the face portion by at least 0.5 mm.
Specification