Sweetspot golf club

Abstract

A sweetspot golf club assembly is designed to help a golfer to drive a golf ball further and to its target more accurately , because of its sweet spot location on the face of the club head and its shaft location at the club head. The sweetspot is where the center-line of the head will pierce the face of the head. The club shaft is attached to the head so its center-line will intersect the center-line of the club head . The center-line of the club head is established by constructing a line from the center of gravity of the head to a perpendicular line that is on the flat face of the head , and is parallel to the ground line, and at the same height to the center of gravity of the head. This club head includes a high lighted straight line on top of a fore and aft rib that is above , and parallel , and on center with the center-line of the club head . This acts as a sight line to assist the golfer to align the club head to the center of the golf ball , and align the sight line with a imaginary line going from the center of the golf ball to its target. The above improvements will assist the golfer to drive the golf ball further and with more accuracy.

Description

DESCRIPTION OF THE PRIOR ART

A golf club assembly that has a center-line of the grip and shaft off center to the sweetspot and centerline of the club head. When a golfer drives a golf ball and the club head makes contact with the golf ball, this offset (1.5 to 2.0 inches) produces a torque about the center-line of the grip and shaft. This torque is great enough to cause the club head face to rotate about the center line of to grip and shaft, causing the golf ball trajectory to be right or left of its target. The same is true when a right or left hand golfer produces a divot. When the center of gravity of the divot is off center to the center-line of the grip and shaft, it also produces a torque about the center line of the grip and shaft. The summation of both torques are great enough to cause the club head face to rotate about the center line of the grip and shaft, which causes the golf ball trajectory to be right or left of its target, depending on a right or left hand golfer. This club head has no high lighted line on top of a fore and aft rib to assist the golfer to align the club head for a accurate direction to its target.

BRIEF SUMMARY OF THE DISCLOSURE

In the presently preferred embodiment of the invention of a golf club assembly consisting of a golf shaft and grip, and club head. The center-line of the grip and the golf shaft is attached to the club head so that it will intersect with the center-line of the club head. The center-line of the club head is established by constructing a line from the center of gravity of the club head to a perpendicular line that is on the flat face of the head, and is parallel to the ground line, and at the same height to the ground line as the center of gravity of the head. When the face of the club head is a arched surface, then a chord is constructed so this line has both ends being equal distance to the center of gravity, and is perpendicular to a line from the center of gravity to the chord of the head face, and the chord is at the same height as the center of gravity, and parallel to the ground line. The center-line of the shaft must intersect the center-line of the head. The lie is of any angle to the ground line. The center-line of the shaft is of any angle to the center-line of the head in the top and end view. The loft is of any angle to the ground line. When a golfer drives the golf ball with his club, the moment of inertia is acting through the center of gravity and contacting the golf ball at the sweet spot (a spot where the center-line of the head will pierce the face of the head) that has no torque acting about the center line of the grip and shaft. In view of the prior art, it is an object of the present invention to provide a golfer a means to make a visible adjustment to a golf club assembly so as to align the head for a more accurate golf ball direction to a target, as on the fairway or a hole of a green on a golf course or driving range. A high lighted straight line at the top of a fore and aft rib located at the top of the head and on center and parallel with the center-line of the head acts as a sight line to assist the golfer to align the head with the center of the golf ball, and align it with a imaginary line that is going from the center of the golf to its target. After this adjustment, the golfer will drive the ball further and have a more accurate trajectory to its target.

All the design specifications listed above are for any size, shape or material of any golf club.

BRIEF DESCRIPTION OF DRAWING

The advantage of this sweetspot golf club assembly means the golf ball can be driven further, and has a more accurate trajectory to a target or hole in the green. The following is a detail discussion and the accompanying drawings in which:

FIG. 1 is an elevation view of a golfer using a sweetspot golf club assembly.

FIG. 2 is a top view of a golf club assembly of the present invention with part of the shaft broken away.

FIG. 3 is a front view of this invention with part of the shaft broken away.

FIG. 4 is a end view of this invention with part of the shaft broken away.

DETAIL DESCRIPTION OF THE PRESENTLY PREFERRED EMBODIMENT

Referring now to the drawings where in the presently preferred embodiment of this invention is illustrated. FIG. 1 discloses a sweetspot golf club assembly 10 being used by a golfer in a swing mode. FIG. 2, 3, 4 contains a golf club head 12, and shaft and grip assembly 11. The center-line of the grip and golf shaft 11 is attached to the club head 12 so that it will intersect with the center-line 16 of the club head 12. The center-line 16 of the head 12 is a line 16 drawn from the center of gravity 15 of the head 12, and perpendicular to a line 21 on the flat face 8 of the head 12, and is parallel to the ground line 22, and at the same height from the ground line 22 to the center of gravity 15 of the head 12. The sweetspot 14 is a spot where the center-line 16 of the head 12 will pierce the surface 18 at point 14. The shaft 11 is attached to the head 12 and the center-line 19 of the shaft 11 intersects with the center line 16 of the head 12 at point 17. The lie angle 24 is of any degrees. The loft angle 25 is of any degrees. The center-line 19 of the shaft 11 to line 21 in the end view FIG. 4 has a angle 20 of any degrees. When the face 18 of the head 12 is an arched surface 18, then a chord 21 is constructed so this line 21 has both ends being equal distance to the center of gravity 15, and is perpendicular to a line 16, from the center of gravity 15 to the chord 21 of the head face 18, and is at the same height of the center of gravity 15 of the head 12, and parallel to the ground line 22, A highlighted straight line 27 is on the top of a fore and aft rib 13 and is located on the top of the head 12 and is parallel and on center with the centerline 16 of the head 12 in the top view of FIG. 2 and has a angle 23 of 90 degrees(plus or minus 5 degrees) to line 21. The golf club head 12 shown is for a right hand golf club assembly 10 and a left hand golf club assembly 10 is symetrically opposite.

OPERATION

When a golfer addresses a golf ball, before hitting it with his golf club, he has to adjust the head to its best geometric position with the ball, so the direction to its target is more accurate. This is done by aligning the golf club head sight line (the high-lighted straight line on the top surface of the fore and aft rib on top of the head) to the fore and aft center-line of the golf ball. Next, he has to align the sight line so as to coincide with a imaginary line that goes from the center of the ball to its a target. Next, he should regrip the club shaft after this adjustment and keep the desired club head position that was set for the club head intacted. He is now ready to drive the ball to its target. When the sweet spot of the club head contacts the ball, it will drive the ball further and with more accuracy to its target, because it has no moment of inertia creating a torque about the center-line of the shaft.

Claims

1. A golf club shaft assembly having the center line of the grip and shaft intersect the center line of the head for its geometric location. The center-line of the head being a line drawn from the center of gravity of the head to a perpendicular line on the face of the head, and is parallel to the ground line, and has the same height as the center of gravity.

2. A golf club head sweet spot is located at a spot where the center line of the club head will pierce the surface of the face of the club head. The center-line of the head being a line drawn from the center of gravity of the head to a perpendicular line on the face of the head, and is parallel to the ground line, and has the same height as the center of gravity.

3. A golf club head having a high lighted straight line at the top surface of a fore and aft rib, and being above, and parallel, and on center with the center-line of the head. This is used as a sight line for aligning the club head to the center of the golf ball and the sight line should coincide with a imaginary line, which extends from the center of the golf ball to its target. The center-line of the head being a line drawn from the center of gravity of the head to a perpendicular line on the face of the head, and is parallel to the ground line, and has the same height as the center of gravity.