Golf club
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United States of America Patent
Stats
-
May 3, 2005
Grant Date -
Jun 24, 2004
app pub date -
May 2, 2003
filing date -
Dec 20, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
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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