Golf club
First Claim
1. A golf club comprising:
- a face portion disposed on the front face of a metallic hollow golf club head and having a hitting surface for hitting a golf ball;
a sole portion which forms the lower portion of said metallic hollow golf club head; and
a crown portion which forms the upper portion of said metallic hollow golf club head;
wherein said sole portion comprises;
a deformation portion disposed on said sole portion which is capable of elastic deformation when a golf ball is struck;
wherein said deformation portion includes;
a protruding part which protrudes such that said sole portion is formed in an obtuse angle, in continuation with said hitting surface and said face portion, as viewed in a cross section cut along a vertical plane including a perpendicular to said hitting surface in order to enhance an elastic effect;
said protruding part have a first corner in said obtuse angle linking said face portion and said sole portion, and a second corner in said sole portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A golf club provides carry which does not deteriorate even when a golf ball is struck in a lower position on a face portion. The golf club includes a face portion 4 having a hitting surface, an improved sole portion 3 which forms a lower portion, and a crown portion 5 which forms an upper portion. A deformation portion B which is capable of elastic deformation is provided in concavoconvex form on the sole portion 3 in a position near the face portion 4. This deformation portion B is constituted by a protrusion 10 which is formed such that the sole portion 3 forms an obtuse angle α, and a concave groove 11 which is formed in a direction linking a toe portion and a heel portion by a protrusion protruding towards the crown portion 5.
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Citations
5 Claims
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1. A golf club comprising:
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a face portion disposed on the front face of a metallic hollow golf club head and having a hitting surface for hitting a golf ball;
a sole portion which forms the lower portion of said metallic hollow golf club head; and
a crown portion which forms the upper portion of said metallic hollow golf club head;
wherein said sole portion comprises;
a deformation portion disposed on said sole portion which is capable of elastic deformation when a golf ball is struck;
wherein said deformation portion includes;
a protruding part which protrudes such that said sole portion is formed in an obtuse angle, in continuation with said hitting surface and said face portion, as viewed in a cross section cut along a vertical plane including a perpendicular to said hitting surface in order to enhance an elastic effect;
said protruding part have a first corner in said obtuse angle linking said face portion and said sole portion, and a second corner in said sole portion. - View Dependent Claims (2, 3, 4, 5)
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Specification