Metal wood club
View Patent ↗A golf club head is provided with a body that has an address position with a zero degree bounce portion on the sole and a center sole position with a multi-relief surface of the sole having a negative bounce portion. The negative bounce portion may comprise a negative 0.5 to a negative 4.0 degree surface. In one embodiment, the multi-relief surface may comprise the negative bounce portion and a cutaway portion extending to the back of the sole, which may have a depth of about 0.05 to 0.5 inch from a regular sole surface. In another embodiment, the golf club head includes a weight system to adjust the center of gravity. In one embodiment, the weight system is a tube having a weight at one end that may be inserted into the golf club head to move the center of gravity at least forward and backward within 6 mm and up and down within 6 mm. Preferably, the tube is angled downward toward the face by at least 3 degrees.
1. A golf club head, the club head comprising:
a body having a face, a sole, a crown and a skirt joining the face, sole and crown, the body having a heel end and a toe end,
wherein the body has an address position further comprises;
a zero degree bounce portion on the sole adjacent to the face of the body,
a center sole position with a negative bounce portion at least partially adjacent to the rear of the zero degree bounce portion of the sole,
a cutaway portion at least partially adjacent to the rear of the negative bounce portion of the sole
wherein the cutaway portion has a different bounce angle than the bounce angle of the negative bounce portion, wherein the negative bounce portion has a constant angle, and wherein the cutaway portion forms a depression in the sole of the golf club head.
2. The golf club head of claim 1 , wherein the negative bounce portion comprises a negative 0.5 to a negative 4.0 degree surface.
3. The golf club head of claim 1 , wherein the negative bounce portion comprises at least a negative 2.0 degree surface.
4. The golf club head of claim 1 , wherein the cutaway portion has a depth of about 0.05 to 0.5 inch.
5. The golf club head of claim 1 , wherein the negative bounce portion is generally triangular.
6. The golf club head of claim 1 , wherein the negative bounce portion is located on the sole at a distance of about 0.1 to 1.0 inch from the face of the club head.
7. The golf club head of claim 6 , wherein the negative bounce portion is located on the sole at a distance of about 0.35 to 0.65 inches from the face of the club head.
8. The golf club head of claim 1 , wherein the negative bounce portion has a constant angle.
9. A golf club head, the club head comprising:
a body having a face, a sole, a crown and a skirt joining the face, sole and crown, the body having a heel end and a toe end,
wherein the body has an address position that further comprises;
a zero degree bounce portion on the sole adjacent to the face of the body having a substantially curved surface spanning from the heel to the toe,
a negative bounce portion at least partially adjacent to the rear of the zero degree bounce portion of the sole having a substantially flat surface wherein the negative bounce portion has a constant angle, and
a cutaway portion at least partially adjacent to the rear of the negative bounce portion of the sole having a substantially curved surface spanning from the heel to the toe wherein the cutaway portion forms a depression in the sole of the golf club head and has a different bounce angle than the bounce angle of the negative bounce portion.
10. The golf club head of claim 9 , wherein the negative bounce portion is generally triangular.
11. The golf club head of claim 10 , wherein the triangular shape of the negative bounce portion forms an angle φ of about 35 to 50 degrees.
12. The golf club head of claim 11 , wherein the triangular shape of the negative bounce portion forms an angle φ of about 38 to 44 degrees.
13. The golf club head of claim 11 , wherein the cutaway portion has a depth of about 0.05 to 0.5 inch.
14. The golf club head of claim 13 , wherein the negative bounce portion comprises at least a negative 2.0 degree surface.