Set of iron golf club heads having a shifting back surface

Details Set of iron golf club heads having a shifting back surface Set of iron golf club heads having a shifting back surface

1994-08-05

1996-06-11

Pierce, William M.

Games using tangible projectile

Golf

Club or club support

473290, A63B 5304

Patent

active

055248802

ABSTRACT:
A set of iron golf club heads for correction of each tendency to hook balls for short irons, and to slice balls for long irons respectively. As the number of the iron golf club head increases, the back of each head body is shifted crosswise away from the neck relative to the face. Thus, as the number of the iron golf club head increases, the center of gravity of each head body is generally shifted crosswise away from the neck as well. Particularly, a position of a middle point M of the face of the 5th iron golf club head is approximately consistent with that of the center of gravity with respect to the lateral direction. Owing to the above position-settings of the center of gravity, balls are given slicing rotation for short irons, while balls are given hooking rotation for long irons, thereby decreasing either a habitual hooking or slicing tendency.

REFERENCES:
patent: 1642462 (1927-09-01), Reach
patent: 3059926 (1962-10-01), Johnstone
patent: 4802672 (1989-02-01), Long
patent: 4848747 (1989-07-01), Fujimura et al.
patent: 5160136 (1992-11-01), Eger
patent: 5295686 (1994-03-01), Lundberg

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