Golf club head with improved performance
View Patent ↗A golf club head with an improved sweet spot, defined as a portion of the striking face that has at least 99.7% of the maximum ballspeed is disclosed herein. More specifically, the present invention discloses a golf club head with a significantly circular sweet spot that encompasses at least about 1.5% of the total striking face. A golf club head in accordance with the present invention may generally have a improved face geometry with an elliptical factor of greater than about 0.5, a beveled transition portion around the striking face of the golf club head, a variable face thickness region with decreases thickness, or even a tilted bulge and roll radius all helping improve the performance of the golf club head.
1. A golf club head comprising:
a striking face with a frontal surface area of greater than about 3600 mm 2 ;
a posterior body portion further comprising a crown portion and a sole portion, wherein said crown portion is coupled to an upper portion of said striking face and said sole portion is coupled to a lower portion of said striking face;
wherein said striking face has a variable thickness,
wherein said striking face has an elliptical geometry with an elliptical factor of greater than about 0.5, and
wherein said elliptical factor is defined as a length of a minor axis of said striking face divided by a length of a major axis of said striking face.
2. The golf club head of claim 1 , wherein said variable thickness further comprises;
a thick central portion;
a transition portion; and
a thin perimeter portion;
wherein said transition portion surrounds said thick central portion,
wherein said thin perimeter portion surrounds said transition portion, and
wherein a placement of a geometric center of said thick central portion within said transition portion is offset from a geometric center of said thin perimeter portion.
3. The golf club of claim 2 , wherein said placement of said thick central portion within said perimeter portion is biased toward the sole of said golf club head.
4. The golf club head of claim 3 , wherein a transition width at a top of said transition portion is greater than a transition width at a bottom of said transition portion.
5. The golf club head of claim 4 , wherein said transition width of said bottom of said transition portion is less than about 80% of said transition width of said top of said transition portion.
6. The golf club head of claim 2 , wherein said placement of said thick central portion within said thin perimeter portion is biased toward the crown of said golf club head.
7. The golf club head of claim 2 , wherein said placement of said thick central portion within said thin perimeter portion is biased toward a heel of said golf club head.
8. The golf club head of claim 2 , wherein said placement of said thick central portion within said thin perimeter portion is biased toward a toe of said golf club head.
9. A golf club head comprising:
a striking face with a frontal surface area of greater than about 3600 mm 2 ; and
a posterior body portion further comprising a crown portion and a sole portion, wherein said crown portion is coupled to an upper portion of said striking face and said sole portion is coupled to a lower portion of said striking face; and
said striking face has a variable face thickness further comprising;
a thick central portion;
a transition portion; and
a thin perimeter portion,
wherein said transition portion surrounds said thick central portion,
wherein said thin perimeter portion surrounds said transition portion, and
wherein a placement of a geometric center of said thick central portion within said transition portion is offset from a geometric center of said thin perimeter portion.
10. The golf club head of claim 9 , wherein said placement of said thick central portion within said perimeter portion is biased toward the sole of said golf club head.
11. The golf club head of claim 9 , wherein said placement of said thick central portion within said thin perimeter portion is biased toward the crown of said golf club head.
12. The golf club head of claim 9 , wherein said placement of said thick central portion within said thin perimeter portion is biased toward a heel of said golf club head.
13. The golf club head of claim 9 , wherein said placement of said thick central portion within said thin perimeter portion is biased toward a toe of said golf club head.
14. The golf club head of claim 9 , wherein said frontal surface area of said striking face comprises of at least 9 percent of a total surface area of said golf club head.
15. The golf club head of claim 14 , wherein said total surface area of said golf club head is between about 32,000 mm 2 and about 35000 mm 2 .
16. The golf club head of claim 14 , wherein said frontal surface area is greater than about 3750 mm 2 .