Iron golf club head with dual intersecting recesses
First Claim
1. A golf club head having a body defining a heel, toe, top wall, sole, and a front wall defining an upwardly and rearwardly inclined front face and rear face, and comprisinga) said body defining a forwardly extending main recess located rearwardly of said front wall,b) and said body also defining an undercut recess located directly rearwardly of said front wall rear face and extending outwardly from said main recess toward said top wall and toward said bottom wall, adjacent said rear face, said rear face having a slant height dimension D1 between uppermost and lowermost extents of said undercut recess in a vertical plane, and said front wall having a slant height dimension D2 between uppermost and lowermost extents thereof in said plane, where:
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space="preserve" listing-type="equation">0.90<
D.sub.1 /D.sub.2 <
0.95.
5 Assignments
0 Petitions
Accused Products
Abstract
A golf club head having a body defining a heel, toe, top wall, sole and a front wall defining an upwardly and rearwardly inclined front face and rear face, the body defining a forwardly extending main recess located rearwardly of the front wall; and the body also defining an undercut recess located directly rearwardly of the front wall rear face and extending outwardly from the main recess toward the top wall and toward the bottom wall, adjacent the rear face, the rear face having a slant height dimension D1 between uppermost and lowermost extents of the undercut recess in a vertical plane, and the front wall having a slant height dimension D2 between uppermost and lowermost extents thereof in the plane, where:
90<D.sub.1 /D.sub.2 <0.95.
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Citations
29 Claims
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1. A golf club head having a body defining a heel, toe, top wall, sole, and a front wall defining an upwardly and rearwardly inclined front face and rear face, and comprising
a) said body defining a forwardly extending main recess located rearwardly of said front wall, b) and said body also defining an undercut recess located directly rearwardly of said front wall rear face and extending outwardly from said main recess toward said top wall and toward said bottom wall, adjacent said rear face, said rear face having a slant height dimension D1 between uppermost and lowermost extents of said undercut recess in a vertical plane, and said front wall having a slant height dimension D2 between uppermost and lowermost extents thereof in said plane, where:
space="preserve" listing-type="equation">0.90<
D.sub.1 /D.sub.2 <
0.95.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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4. The golf club head of claim 1 wherein said top wall and bottom wall have substantially reduced thickness outwardly of said undercut recess.
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5. The golf club head of claim 4 wherein said undercut recess extends in a loop that is generally parallel to the inclined front face.
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6. The golf club head of claim 4 wherein said undercut recess extends outwardly toward said top wall and toward said bottom wall, the depth of the undercut recess toward said top wall being lesser than the depth of said undercut recess toward said bottom wall.
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7. The golf club head of claim 6 wherein said undercut recess that extends toward said top wall has a substantially semi-circular cross section adjacent said top wall, and said undercut recess toward said bottom wall has a substantially semi-circular cross section adjacent said bottom wall.
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8. The golf club head of claim 6 wherein said undercut recess proximate said heel and proximate the toe decreases gradually in depth in an upward direction.
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9. The golf club head of claim 1 wherein said head has rearward projection with upward thickening between said bottom wall and said main recess, and rearwardly of said undercut recess that extends toward said bottom wall, said undercut recess that extends toward said bottom wall having forward and rearward sides that extend parallel to one another.
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10. The golf club head of claim 9 wherein said head has rearward projection with downward thickening between said top wall and said main recess, and rearwardly of said undercut recess that extends toward said top wall, said undercut recess that extends toward said top wall having forward and rearward sides that extend parallel to one another.
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11. The golf club head of claim 9 wherein said rearward projection from the undercut recess has substantially greater overall rearward dimension than vertical thickness dimension.
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12. The golf club head of claim 1 wherein said head has rearward projection with downward thickening between said top wall and said main recess, and rearwardly of said undercut recess that extends toward said top wall, said undercut recess that extends toward said top wall having forward and rearward sides that extend parallel to one another.
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13. The golf club head of claim 12 wherein said rearward projection from the undercut recess has substantially greater overall rearward dimension than vertical thickness dimension.
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14. The golf club head of claim 1 wherein said body is metallic.
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15. The golf club head of claim 14 wherein said body is a one-piece casting, and defines an iron golf club head.
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16. The golf club of claim 1 wherein said body consists of a metallic casting.
- 17. The golf club head of claim 1 wherein said undercut recess projects outwardly to an extent w1, and has front to rear thickness t1, where
- space="preserve" listing-type="equation">0.5t.sub.1 <
w.sub.1 <
1.5t.sub.1.
- space="preserve" listing-type="equation">0.5t.sub.1 <
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18. The golf club head of claim 1 wherein said body has at least one slit extending rearwardly from said undercut recess and extending outwardly from said main recess.
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19. The golf club head of claim 1 wherein said body has four slits extending rearwardly from said undercut recess and extending outwardly from said main recess at the following locations:
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proximate the junction of the heel and top wall proximate the junction of the heel and bottom wall proximate the junction of the toe and top wall proximate the junction of the toe and bottom wall.
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20. The golf club head of claim 1, including slots formed in corners defined by said head and intersecting said undercut recess.
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21. The golf club head of claim 20 wherein there are four of said slots, two of which are proximate the head toe, and two of which are proximate a jucture defined by the hosel and head.
- 22. The head of claim 1 wherein said main recess, proximate said undercut recess, has a slant height dimension D3 in said vertical plane, where
- space="preserve" listing-type="equation">D.sub.3 <
D.sub.1 <
D.sub.2.
- space="preserve" listing-type="equation">D.sub.3 <
- space="preserve" listing-type="equation">D.sub.3 <
D.sub.1 <
D.sub.2
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24. A golf club head having a body defining a heel, toe, top wall, sole and a front wall defining an upwardly and rearwardly inclined front face, and comprising
a) said body defining a forwardly extending main recess located rearwardly of said front wall, b) and said body also defining an undercut recess located directly rearwardly of said front wall and extending outwardly from said main recess toward the following: -
i) said top wall ii) said bottom wall, said undercut recess proximate said top wall having lesser depth than said undercut recess proximate said bottom wall, c) said undercut recess having uppermost and lowermost extents defining a separation distance D1, the front face having uppermost and lowermost extents defining a separation distance D2, where
space="preserve" listing-type="equation">0.90<
D.sub.1 /D.sub.2 <
0.95. - View Dependent Claims (25, 26)
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27. Multiple golf club heads in a set, each head having a body defining a heel, toe, top wall, sole and a front wall defining an upwardly and rearwardly inclined front face, and comprising
a) said body defining a forwardly extending main recess located rearwardly of said front wall, b) and said body also defining an undercut recess located directly rearwardly of said front wall and extending outwardly from said main recess toward at least three of the following: -
i) said top wall ii) said bottom wall iii) said toe iv) said heel, c) the undercut recesses in said bodies of the set having increasing rearward angularity in correspondence to increasing rearward angularity of the inclined front faces of the bodies of the set, d) the undercut recesses in each body of the set having parallel forward and rearward walls, e) said front wall having front and rear faces, said rear face having a slant height dimension D1 between uppermost and lowermost extents of said undercut recess in a vertical plane, and said front wall having a slant height dimension D2 between uppermost and lowermost extents thereof in said plane, where;
0.90<
D1 /D2 <
0.95. - View Dependent Claims (28)
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29. A golf club head having a body defining a heel, toe, top wall, bottom wall, a sole, and a front wall defining an upwardly and rearwardly inclined front face, and comprising
a) said body defining a forwardly extending main recess located rearwardly of said front wall, b) and said body also defining an undercut recess located directly rearwardly of said front wall and extending outwardly from said main recess toward at least said top wall and said bottom wall, c) each of said top and bottom walls having a maximum vertical thickness region rearwardly of and adjacent said undercut recess, said top wall tapering rearwardly and being rearwardly elongated rearwardly of said undercut recess to overlie said main recess, and said bottom wall tapering rearwardly and being rearwardly elongated rearwardly of said undercut recess to underlie said main recess, said top wall defining a reduced thickness web adjacent to and above said undercut recess, said web located rearwardly of the uppermost level of said front face, and said undercut recess nearest said web extending upwardly to a level proximate said uppermost level of said front face, d) said rear face having a slant height dimension of D1 between uppermost and lowermost extents of said undercut recess in a vertical plane, and said front wall having a slant height dimension D2 between uppermost and lowermost extents thereof in said plane, where:
space="preserve" listing-type="equation">0.90<
D.sub.1 /D.sub.2 <
0.95.
Specification