Patent ID: 7048638

Claim:
A golf swing plane training device for a golfer user comprising in operative combination: a) an anchor assembly, b) a constant force unit (CFU) assembly mounted via a pivot to said anchor and having a tether, i) said CFU is anchored to a support at a height above the highest extent of a golfer's hands at the top of a back swing, ii) said anchor and CFU pivot permitting pivoting of said CFU around a vertical axis during the performance by said user of a golf training swing; iii) said constant force unit comprises a reverse-wound ribbon spring assembly selectable to have a non-straining force doing both the back swing and down swing in the range of less than about 20 lbs force during extension an retrac-tion, said assembly including a supply reel and an output reel mounted on an axle, said ribbon spring being wound one way in said supply reel with an outer end attached to said output reel axle for winding the opposite way around the output reel axle to provide smooth, truly constant force, contion-ous play out and rewind of said tether through-out the entire golf swing; c) a tether comprising a line attached at one end to said CFU and having a length selected to provide a full golf swing from at least the top of a back swing through a down swing to an address position; d) a handle unit attachable to the other end of said line for gasping by a user, said handle comprising; i) a two-handed, contoured grip of a golf club without either the shaft or head of said club, and ii) an axially oriented, pivoting shank extending from an out-board end of said handle, said shaft including a distal end having an element to which said tether is attached, and said pivoting shank is configured to direct force from said tether to substantially the center of said said grip iii) said constant force unit and said axial handle shank, as they pivot during a golf swing, providing an upward and backward substantially constant force pull substantially on the center of said grip of said handle during both said back swing and during the entire down swing to said address position, a proper swing plane being a path of handle swing of least perceived resis-tance; and e) said golfer user positioning him/her-self with respect to said anchored CFU to provide an upward and backward substantially constant force pull directed substantially to the center of user's two handed grip on said contoured handle during said back swing to assist in full extension of the lead arm during said back swing, and substantially constant force during the entire down swing to said address position to promote lead shoulder dominance and arm muscle memory.