GOLF CLUB WITH IMPROVED WEIGHTING
A plurality of two or more golf clubs with improved weighting characteristics is disclosed. More specifically, the present invention discloses a specific relationship between the mass M club of the golf club and the length L club to help improve the performance of the golf club. In addition to the above, the present invention also discloses a change to the balance point of the shaft to help compensate for the change in mass M shaft of the shaft and the length L shaft of the shaft to maintain a desirable swing weight.
1 . A plurality golf club shafts comprising;
a first golf club shaft having a length of greater than about 37.5 inches having a first shaft mass;
a second golf club shaft having a length of about 37.5 inches having a second shaft mass;
a third golf club shaft having a length of less than about 37.5 inches having a third shaft mass;
where said first shaft mass is less than said second shaft mass, and
wherein said second shaft mass is equal to said third shaft mass.
2 . The plurality of golf club shafts of claim 1 , wherein said first shaft mass is greater than about 94.5 grams.
3 . The plurality of golf club shafts of claim 2 , wherein said second shaft mass and said third shaft mass are both about 106.5 grams.
4 . The plurality of golf club shafts of claim 1 , wherein said first shaft mass is greater than about 92.5 grams.
5 . The plurality of golf club shafts of claim 4 , wherein said second shaft mass and said third shaft mass are both about 104.5 grams.
6 . The plurality of golf club shafts of claim 1 , wherein said first shaft mass is greater than about 55 grams.
7 . The plurality of golf club shafts of claim 6 , wherein said second shaft mass and said third shaft mass are both about 70 grams.
8 . The plurality of golf club shafts of claim 1 , wherein said first shaft mass is greater than about 52 grams.
9 . The plurality of golf club shafts of claim 8 , wherein said second shaft mass and said third shaft mass are both about 67 grams.
10 . The plurality of golf club shafts of claim 1 , wherein said first golf club shaft, said second golf club shaft, and said third golf club shaft, all have a Balance Point shaft that increases as said length L shaft increases according to the relationship,
Balance Point shaft (%)≧0.1 L shaft +26.33.
11 . The plurality of golf club shafts of claim 10 , wherein said relationship between said Balance Point shaft and said length L shaft is,
Balance Point shaft (%)≧0.3 L shaft +26.33.
12 . The plurality of golf club shafts of claim 10 , wherein said relationship between said Balance Point shaft and said length L shaft is,
Balance Point shaft (%)≧0.5 L shaft +26.33.
13 . A golf club shaft comprising:
a first end, a second end, an inner diameter, and an outer diameter;
wherein a mass M shaft of said shaft is determined as a function of a length L shaft ;
wherein if said length L shaft is greater than about 37.5 inches, said mass M shaft increases inversely with the decrease in length L shaft ;
wherein if said length L shaft is less than or equal to about 37.5 inches, said mass M shaft stays constant irrespective of any change in length L shaft .
14 . The golf club shaft of claim 13 , wherein said shaft has a Balance Point shaft that increases as said length L shaft increases according to the relationship,
Balance Point shaft (%)≧0.1 L shaft +26.33.
15 . The golf club shaft of claim 14 , wherein said shaft has a Balance Point shaft that increases as said length L shaft increases according to the relationship,
Balance Point shaft (%)≧0.3 L shaft +26.33.
16 . The golf club shaft of claim 13 , wherein said shaft has a Balance Point shaft that increases as said length L shaft increases according to the relationship,
Balance Point shaft (%)≧0.5 L shaft +26.33.
17 . A plurality of golf club shafts comprising:
a first golf club shaft having a first length and a first shaft mass;
a second golf club shaft having a second length and a second shaft mass; and
a third golf club shaft having a third length and a third shaft mass,
wherein said first length is greater than said second length, and said second length is greater than said third length,
wherein said first shaft mass is less than said second shaft mass, and said second shaft mass is equal to said third shaft mass, and
wherein said second and third shaft mass is about 15 grams to about 20 grams higher than said first shaft mass.
18 . The plurality of golf club shafts of claim 17 , wherein said first shaft mass is greater than about 92.5 grams.
19 . The plurality of golf club shafts of claim 17 , wherein said first shaft mass is greater than about 52 grams.