US2025090910A1PendingUtilityA1
Bunker golf club head
Est. expirySep 20, 2043(~17.1 yrs left)· nominal 20-yr term from priority
Inventors:Jacob T. Clarke
A63B 53/0445A63B 53/047A63B 53/0433A63B 2053/0479A63B 53/0408
62
PatentIndex Score
0
Cited by
0
References
0
Claims
Abstract
The invention provides a wedge-type golf club head optimized for close-to-the-green shots. The golf club head comprises a highly lofted, large strike face and a sole with a broad bounce surface. The golf club head facilitates the golfer using a normal stance and swing path to produce an accurate, high trajectory shot to the green.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A wedge-type golf club head comprising:
a golf club head body comprising: a toe, a heel, a sole having a leading edge defining a forwardmost edge, a front portion comprising a planar strike face having scorelines defining a grooved area and a strike face geometric center, a rear surface opposite the front portion, a top rail, a hosel, a strike face perimeter, and a transition between the hosel and the strike face; wherein a loft plane is tangent to the strike face geometric center; wherein an intersection of the loft plane and a ground plane define a loft angle and a loft plane intersection point; wherein the loft angle is at least 62 degrees and no more than 70 degrees; wherein an x-axis is defined extending from the heel toward the toe through the strike face geometric center, parallel to the ground plane, a y-axis is defined extending through the strike face geometric center from the sole toward the top line perpendicular to the x-axis, a z-axis is defined in a front to rear direction through the strike face geometric center perpendicular to both the x-axis and the y-axis, and an xy plane is defined by the x-axis and the y-axis; wherein a strike face area is planar and within the loft plane; wherein the strike face perimeter is defined at the transition from the strike face area planar surface; wherein the strike face area is in a range of 5.80 in 2 to 6.0 in 2 ; wherein the sole further comprises a maximum sole width measured between the leading edge and a rear edge, a sole maximum length measured between the toe and the heel, and a total sole area that comprises a transition area, a bounce area, and a relief area; wherein the maximum sole width is in a range of 1.10 inch to 1.20 inch; wherein the total sole area is in a range between 2.0 in 2 to 2.6 in 2 ; and wherein a ratio of loft angle to sole area (Loft (ang)/S(A)) satisfies the following relationship having a unit of degrees/in 2 :
27.
≤
Loft
(
ang
)
S
(
A
)
≤
3
0.
.
2 . The wedge-type golf club head of claim 1 , wherein the strike face comprises a maximum strike face height measured between the leading edge and the strike face perimeter adjacent the top rail;
wherein the maximum strike face height is in a range from 2.6 in to 2.8 in.
3 . The wedge-type golf club head of claim 1 , wherein a lie angle is in a range between 63.5 degrees and 64.5 degrees.
4 . The wedge-type golf club head of claim 1 , wherein the maximum sole width is in a range from 1.10 in to 1.25 in.
5 . The wedge-type golf club head of claim 1 , wherein the golf club head body defines a top rail height measured perpendicularly from a ground plane to an imaginary plane tangent to the top rail when the golf club head is at an address position;
wherein the top rail height is in a range of 1.55 inches to 1.65 inches.
6 . The wedge-type golf club head of claim 1 , wherein a transition angle is defined between the leading edge and a transition area having a transition area rearward boundary between the leading edge and a bounce area;
wherein the transition area comprises a maximum transition radius of curvature, and the transition area comprises a maximum transition width measured between the leading edge and the transition area rearward boundary; and wherein the maximum transition radius of curvature is in a range of 0.07 inch and 0.09 inch.
7 . The wedge-type golf club head of claim 2 , wherein the golf club head body further comprises a club head mass in a range of 330 grams to 360 grams.
8 . The wedge-type golf club head of claim 5 , wherein the golf club head body further comprises a center of gravity (CG);
wherein a CG height (CG(H)) is measured perpendicularly to the ground plane; and wherein the CG height is in a range of 0.70 inch to 0.75 inch.
9 . The wedge-type golf club head of claim 7 , wherein 34% of the club head mass is located under a first mass plane parallel to the ground plane;
wherein the first mass plane is located 0.49 inch above the ground plane.
10 . The wedge-type golf club head of claim 1 , wherein the strike face comprises a minimum face thickness measured perpendicularly between a strike face front surface and a strike face rear surface; and
wherein the minimum face thickness is in a range between 0.09 inch and 0.11 inch.
11 . The wedge-type golf club head of claim 1 further comprises a perimeter extension extending rearward from the strike face; and
wherein the perimeter extension, an upper sole surface, and a strike face rear surface together define a rear cavity.
12 . The wedge-type golf club head of claim 8 , wherein a leading edge height is measured perpendicular to the ground plane to the leading edge when the golf club head body is in an address position; and wherein the following relationship is true:
0.5
≤
L
E
(
H
)
C
G
(
H
)
≤
0
.
6
5
.
13 . The wedge-type golf club head of claim 1 , wherein a ratio of the strike face surface area (SF(A)) to a bounce surface area (B(A)) is within the following relationship:
2.6
≤
S
F
(
A
)
B
(
A
)
≤
2
.
7
0
.
14 . The wedge-type golf club head of claim 8 , wherein a ratio of the CG height (CG(H)) to the top rail height (TR(H)) is within the following relationship:
0.4
≤
C
G
(
H
)
T
R
(
H
)
≤
0
.
5
.
15 . The wedge-type golf club head of claim 1 , wherein a rearmost plane is defined perpendicular to the ground plane and tangent to the top rail;
wherein a loft plane intersection point is the intersection of the loft plane with the ground plane; wherein a loft plane intersection point to rearmost plane distance (RP( Dist )) is measured perpendicularly between the intersection of the loft plane with the ground plane and the rearmost plane; and wherein the (RP( Dist )) is in an inclusive range between 3.3 inches to 3.6 inches.
16 . The wedge-type golf club head of claim 15 , wherein a distance measured parallel to the ground plane between the leading edge and the rearmost plane (LE(Dist)) is in a range between 2.5 inches to 2.7 inches.
17 . The wedge-type golf club head of claim 1 , wherein a ratio between the strike face area (SF(A)) and a grooved area (Grv(A)) is defined by the following relationship:
1.
≤
S
F
(
A
)
G
r
v
(
A
)
≤
1
.
2
0
.
18 . The wedge-type golf club head of claim 1 , wherein a ratio between the strike face area (SF(A)) and a sole surface area (S(SA)) is defined by the following relationship:
2.15
≤
S
F
(
A
)
S
(
A
)
≤
2
.
8
.
19 . The wedge-type golf club head of claim 1 , wherein a ratio between a moment of inertia around a vertical axis through the CG(Iyy) and a moment of inertia around a toe-to-heel axis through the CG(Ixx) is defined by the following relationship:
2.65
≤
Iyy
Ixx
≤
2
.
8
5
.
20 . The wedge-type golf club head of claim 1 , wherein a ratio between a strike face maximum height (SF(HMax)) and strike maximum width SF(WMax) measured in a heel-to-toe direction is defined by the following relationship:
0.9
≤
SF
(
Hmax
)
SF
(
Wmax
)
≤
1.
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