Fairway wood center of gravity projection
View Patent ↗A golf club head includes a body defining an interior cavity. The body includes a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion, and a skirt positioned around a periphery between the sole and crown. The body has a forward portion and a rearward portion. The club head includes a face positioned at the forward portion of the body. The face defines a striking surface having an ideal impact location at a golf club head origin. Embodiments include club heads for a fairway wood that at least one of a high moment of inertia, a low center-of-gravity, a thin crown and a high coefficient of restitution. A sleeve for easily disconnecting a shaft to the club head allows for selective adjustment of the head's loft and lie angle.
1. A golf club head, comprising:
a body defining an interior cavity, a sole portion positioned at a bottom portion of the golf club head, a crown portion positioned at a top portion, the body also having a forward portion and a rearward portion and a maximum above ground height; and
a face positioned at the forward portion of the body; wherein,
the body height is less than about 46 mm,
the face has a loft angle greater than about 13 degrees, and
the golf club head has a center of gravity (CG) projection of less than about 3 mm above a center of the face,
wherein the crown has a thickness less than about 0.65 mm over at least about 70% of the crown;
a sleeve for adjustably securing a shaft to the golf club head to selectively adjust at least one of a loft angle, lie angle and face angle of the club head.
2. The golf club head of claim 1 , wherein the CG projection is less than about 1.4 mm above a center of the face.
3. The golf club head of claim 1 , wherein the coefficient of restitution is about 0.82.
4. The golf club head of claim 1 , wherein the coefficient of restitution is 0.82 or greater.
5. The golf club head of claim 1 , wherein a volume of the golf club head is less than about 240 cm 3 .
6. The golf dub head of claim 1 , further comprising a channel defined in the sole adjacent the face and extending into the interior cavity of the club head, wherein a portion of the sole being located between the face and the channel.
7. The golf club head of claim 1 , wherein a coefficient of restitution of the golf club head measured at the center of the face is 0.80 or greater.
8. The golf club head of claim 1 , wherein a coefficient of restitution of the golf dub head measured at the center of the face is 0.81 or greater.
9. The golf club head of claim 1 , wherein the golf club head has an above ground center-of-gravity location, Zup, less than about 19.0 mm.
10. The golf club head of claim 1 , wherein an average characteristic time is about 241 microseconds.
11. The golf club head of claim 1 , wherein a mass of the golf club head is between about 185 grams and about 245 grams.
12. The golf club head of claim 1 , wherein a mass of the golf club head is between about 200 grams and about 220 grams.
13. The golf club head of claim 1 , wherein the golf club head is formed of at least one alloy of titanium.
14. The golf club head of claim 1 , wherein the golf club head is formed of at least one alloy of steel.
15. A golf club head, comprising:
a body defining an interior cavity, a sole portion positioned at a bottom portion of the golf club head, a crown portion positioned at a top portion, the body also having a forward portion and a rearward portion and a maximum above ground height;
a face positioned at the forward portion of the body;
a channel defined in the sole adjacent the face and extending into the interior cavity of the club head;
added weight positioned rearward of the channel,
wherein the channel has a greatest vertical dimension of at least 20% of the height of the face;
wherein a portion of the sole being located between the face and the channel; and
a sleeve for adjustably securing a shaft to the golf club head to selectively adjust at least one of a loft angle, lie angle and face angle of the dub head.
16. The golf club head of claim 15 , wherein the channel has a greatest vertical dimension of at least 30% of the height of the face.
17. The golf club head of claim 15 , wherein the coefficient of restitution measured at a center of the face is about 0.82.
18. The golf club head of claim 15 , wherein the coefficient of restitution measured at a center of the face is at least 0.82.
19. The golf club head of claim 15 , further comprising:
one or more weight ports formed in the body; and
at least one weight configured to be retained at least partially within one of the one or more weight ports.
20. The golf club head of claim 15 , wherein the channel defined in the sole adjacent the face includes an added weight received in the channel.
21. The golf club head of claim 15 , wherein the CG projection is lower than about 2.0 mm above a center of the face.
22. The golf club head of claim 15 , wherein the CG projection is lower than about 1.0 mm above a center of the face.
23. The golf club head of claim 15 , wherein a coefficient of restitution of the club head measured at the center of the face is 0.80 or greater.
24. The golf club head of claim 15 , wherein a coefficient of restitution of the golf dub head measured at the center of the face is 0.81 or greater.
25. The golf club head of claim 15 , wherein the golf club head has an above ground center-of-gravity location, Zup, less than about 19.0 mm.
26. The golf club head of claim 15 , wherein an average characteristic time is about 241 microseconds.
27. The golf club head of claim 15 , wherein a mass of the golf club head is between about 185 grams and about 245 grams.
28. The golf club head of claim 15 , wherein a mass of the golf club head is between about 200 grams and about 220 grams.
29. The golf club head of claim 15 , wherein the golf club head is formed of at least one alloy of titanium.
30. The golf club head of claim 15 , wherein the golf club head is formed of at least one alloy of steel.
31. A golf club head, comprising:
a body defining an interior cavity, a sole portion positioned at a bottom portion of the golf club head, a crown portion positioned at a top portion, and the body also having a forward portion and a rearward portion and a maximum above ground height; and
a face positioned at the forward portion of the body;
a channel defined in the sole adjacent the face and extending into the interior cavity of the club head and a portion of the sole being located between the face and the channel;
wherein, the golf club head has a center of gravity (CG) projection of less than about 3 mm above a center of the face;
wherein the crown has a thickness less than about 0.65 mm over at least about 70% of the crown;
wherein a coefficient of restitution of the golf club head measured at the center of the face is 0.80 or greater;
wherein a mass of the golf club head is between about 185 grams and about 245 grams;
wherein a portion of the golf club head is formed of at least one alloy of titanium;
wherein a maximum dimension from the forward portion to the rearward portion is greater than about 85 mm;
wherein the golf club head has an above ground center-of-gravity location Zup measured in mm;
wherein the golf club head has a moment of inertia about the center-of-gravity z-axis Izz measured in kg-mm 2 ;
wherein a rotational moment of inertia about the center-of-gravity z-axis Izz is related to the above ground center-of-gravity location Zup by the equation Izz≧13·Zup+105;
a sleeve for adjustably securing a shaft to the golf club head to selectively adjust at least one of a loft angle, lie angle and face angle of the club head.