Progressive iron set
View Patent ↗The present invention is direct to a set of golf clubs comprising long irons, mid-irons and short irons. The long irons have a first center of gravity positioned horizontally from the face center by a first distance. The mid-irons have a second center of gravity positioned horizontally from the face center by a second distance. The short irons have a third center of gravity positioned horizontally from the face center by a third distance.
1. A set of golf clubs comprising at least a first golf club, a second golf club, and a third club, wherein:
the first, second and third golf clubs each comprising a heel, a toe, an upper surface, a lower surface, a hosel and a front face having a face center, wherein at least one of the clubs includes a weighted sleeve member inserted into the hosel having a specific gravity that is at least 75% greater than the golf club, and
the first golf club further comprising a first loft angle (LA 1 ) of between 15 and 25 degrees and a first center of gravity positioned horizontally from the face center toward the hosel by a first distance,
the second golf club comprising a second loft angle (LA 2 ) of between 26 and 36 degrees and a second center of gravity positioned horizontally from the face center toward the hosel by a second distance, and
the third golf club comprising a third loft angle (LA 3 ) of between 37 and 47 degrees and a third center of gravity positioned horizontally from the face center toward the hosel by a third distance,
wherein the first distance and the second distance are approximately constant and the third distance is at least 30 percent greater than the first distance.
2. The set of golf clubs of claim 1 , wherein the third distance is between 35 percent and 70 percent greater than the first distance.
3. The set of golf clubs of claim 1 , wherein the first and second distance are between about 1 mm and 3 mm.
4. The set of golf clubs of claim 3 , wherein the third distance is between about 3 mm and 4 mm.
5. The set of golf clubs of claim 1 , wherein, for the third golf club, the third distance is greater than about 15 percent of a center of gravity position measured vertically from the ground.
6. The set of golf clubs of claim 1 , wherein the set is comprised of at least 2 golf clubs comprising a loft angle (LA) of between 15 and 25 degrees, at least 2 golf clubs comprising a loft angle (LA) of between 26 and 36 degrees and at least 2 golf clubs comprising a loft angle (LA) of between 37 and 47 degrees,
wherein each of the 2 clubs having a loft angle (LA) of between 15 and 25 degrees has a center of gravity positioned horizontally from the face center a distance of between about 0 mm and 2.5 mm;
wherein each of the 2 clubs having a loft angle (LA) of between 26 and 36 degrees has a center of gravity positioned horizontally from the face center a distance of between about 0 mm and 2.5 mm; and
wherein each of the 2 clubs having a loft angle (LA) of between 37 and 47 degrees has a center of gravity positioned horizontally from the face center toward the heel a distance of between about 3 mm and 4 mm.
7. The set of golf clubs of claim 6 , wherein each of the 2 clubs having a loft angle (LA) of between 15 and 25 degrees is further comprised of a weighted sleeve member inserted into the hosel and a toe weight formed from a material having a specific gravity of greater than about 15 g/cc.
8. The set of golf clubs of claim 7 , wherein each of the 2 clubs having a loft angle (LA) of between 26 and 36 degrees is further comprised of a weighted sleeve member inserted into the hosel and a toe weight formed from a material having a specific gravity of greater than about 15 g/cc.
9. The set of golf clubs of claim 8 , wherein at least one of the 2 clubs having a loft angle (LA) of between 37 and 47 degrees is further comprised of a weighted sleeve member inserted into the hosel and formed from a material having a specific gravity of greater than about 15 g/cc.