Golf club head
First Claim
1. A hollow golf club head comprising:
- a sole part,wherein the sole part has a first groove forming part and a second groove forming part which have a recessed outer surface and a protruding inner surface;
the first groove forming part and the second groove forming part have a front-back directional length; and
a distance between the first groove forming part and the second groove forming part in a toe-heel direction increases in a direction toward a back of the head;
the sole part further comprising;
a plurality of sets of the first groove forming part and the second groove forming part,wherein the sole part is absent of any other groove forming parts between the first groove forming part and the second groove forming part of a first set of the plurality of sets, andwherein the sole part is absent of any other groove forming parts between the first groove forming part and the second groove forming part of a second set of the plurality of sets.
3 Assignments
0 Petitions
Accused Products
Abstract
A head 2 is hollow. The head 2 has a sole part 8. The sole part 8 has a groove forming part k1 having a recessed outer surface g1 and a protruding inner surface s1. The sole part 8 has a first groove forming part k1 and a second groove forming part k1. The first groove forming part k1 and the second groove forming part k1 have a front-back directional length. A distance between the first groove forming part k1 and the second groove forming part k1 in a toe-heel direction is wider toward a back of the head. Preferably, the first groove forming part k1 and the second groove forming part k1 exist on a back of a face surface 13. Preferably, the sole part 8 has a connecting groove part r1. The connecting groove part r1 is formed by connecting a front end of the first groove forming part k1 to a front end of the second groove forming part k1 with each other.
178 Citations
20 Claims
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1. A hollow golf club head comprising:
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a sole part, wherein the sole part has a first groove forming part and a second groove forming part which have a recessed outer surface and a protruding inner surface; the first groove forming part and the second groove forming part have a front-back directional length; and a distance between the first groove forming part and the second groove forming part in a toe-heel direction increases in a direction toward a back of the head; the sole part further comprising; a plurality of sets of the first groove forming part and the second groove forming part, wherein the sole part is absent of any other groove forming parts between the first groove forming part and the second groove forming part of a first set of the plurality of sets, and wherein the sole part is absent of any other groove forming parts between the first groove forming part and the second groove forming part of a second set of the plurality of sets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification