Steel golf club head having reduced face thickness and optimum distributed mass
First Claim
1. An iron type golf club head comprising:
- a heel portion, a toe portion, a bottom sole portion, a top ridge portion, a hosel portion, a striking face having a primary striking zone, a rear surface, a peripheral mass formed on the rear surface adjacent said heel, toe, bottom sole, and top ridge portions, said peripheral mass defining a rear cavity, a bottom of said rear cavity being defined by said rear surface; and
a cantilevered mass extending from the bottom sole portion toward the top ridge portion within the rear cavity, said cantilevered mass being spaced apart from the rear surface.
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Accused Products
Abstract
A golf club head is comprised of cryogenically treated steel resulting in the striking face having a reduced face thickness of between 0.115 inches and 0.130 inches, and therefore, a reduced striking face mass. Extra material which is eliminated from the striking face, is distributed in other areas of the club head to enhance performance. In an iron club head embodiment, the club head includes a heel portion, toe portion, bottom sole portion, top ridge portion, hosel portion, striking face, rear surface, and peripheral mass on the rear surface which forms a rear cavity. A cantilevered mass extends from the bottom sole portion toward the top ridge portion within the rear cavity, spaced apart from the rear surface. In a wood club head embodiment, the club head includes a hollow body having an inner cavity delimited by a sole portion, a striking face, a heel portion, a toe portion, and a crown portion which links the striking face, toe portion, and heel portion. A weight chip of higher density material is located along the sole portion of the head. The iron and wood embodiments enjoy an optimum weight distribution which is below and behind the sweet spot, producing higher trajectory golf shots and more forgiving off-center hits.
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Citations
28 Claims
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1. An iron type golf club head comprising:
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a heel portion, a toe portion, a bottom sole portion, a top ridge portion, a hosel portion, a striking face having a primary striking zone, a rear surface, a peripheral mass formed on the rear surface adjacent said heel, toe, bottom sole, and top ridge portions, said peripheral mass defining a rear cavity, a bottom of said rear cavity being defined by said rear surface; and
a cantilevered mass extending from the bottom sole portion toward the top ridge portion within the rear cavity, said cantilevered mass being spaced apart from the rear surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A metal wood type golf club head comprising:
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a hollow body having an inner cavity delimited by a sole portion, a striking face having a primary striking zone, a heel portion having an opening defining a shaft axis for the introduction of a shaft, a toe portion, and a crown portion linking said striking face, said toe portion, and said heel portion, wherein the hollow body is comprised of cryogenically treated steel;
a weight chip located along the sole portion of the head, said head having a center of gravity substantially closer to the sole portion than said crown portion; and
wherein the primary striking zone of the striking face has a thickness between 0.130 and 0.135 inches. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A iron set comprising a plurality of irons having increasing size numbers, said irons each having an iron head comprising:
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a heel portion, a toe portion, a bottom sole portion, a top ridge portion, a hosel portion, a striking face having a primary striking zone, a rear surface, a peripheral mass formed on the rear surface adjacent said heel, toe, bottom sole, and top ridge portions, said peripheral mass defining a rear cavity, a bottom of said rear cavity being defined by said rear surface; and
a cantilevered mass extending from the bottom sole portion toward the top ridge portion within the rear cavity, said cantilevered weight mass being spaced apart from the rear surface. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A method of making a golf club head, said method comprising:
forming a club head having a primary striking zone, a top portion, a bottom portion, a toe portion, and a heel portion, wherein at least the striking face of the club head is cryogenically treated steel, the primary striking zone having at least a portion having a thickness between 0.115 inches and 0.135 inches, said face thickness resulting in a reduced striking zone mass; and
, distributing mass not used in the reduced striking zone mass about at least one of the striking face, the top portion, the bottom portion, the toe portion, the heel portion.- View Dependent Claims (26, 27)
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28. A method of constructing a golf club head comprising:
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assembling the golf club head including a striking face, a top portion, a bottom portion, a toe portion, and a heel portion; and
cryogenically treating the assembled golf club head;
orcryogenically treating a striking face; and
assembling the striking face in contact with a top portion, a bottom portion, a toe portion, and a heel portion.
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Specification