01-08-2019 дата публикации
Номер: US20190232123A1
Автор:
Joshua J. Dipert,
Scott Taylor,
Yong Ling,
DIPERT JOSHUA J,
TAYLOR SCOTT,
LING YONG,
Dipert, Joshua J.,
Taylor, Scott,
Ling, Yong
Iron-type golf club heads are disclosed having a heel portion, a sole portion, a toe portion, a top-line portion, a front portion, a rear portion, and a striking face. The iron-type golf club heads include a localized stiffened region that is located on the striking face of the club head such that the localized stiffened region alters the launch conditions of golf balls struck by the club head in a way that wholly or partially compensates for, overcomes, or prevents the occurrence of a rightward deviation. In particular, the localized stiffened region is located on the striking face such that a golf ball struck under typical conditions will not impart a right-tending sidespin to the golf ball. 1. An iron-type golf club head comprising:a heel,a toe,a sole,a top-line of the iron-type club head,a striking face having a forward-facing ball-striking surface, a rearward-facing surface, and an ideal striking location; anda perimeter weight surrounding the striking face;wherein the striking face has a supported region supported by the perimeter weight and an unsupported region, with the ideal striking location lying within the unsupported region, the unsupported region having a thickness that varies in a heel-toe direction;wherein a heel portion of the unsupported region of the striking face is located on a heel side of an imaginary vertical plane that extends perpendicularly to the ground plane and that contains an imaginary line that extends in a direction normal to the striking face at the ideal striking location when the clubhead is in the normal address position, and wherein a toe portion of the unsupported region of the face is located on a toe side of the imaginary plane;wherein the clubhead has a relative coefficient of restitution of at least −0.030; and [{'br': None, 'sub': TOE', 'HEEL, 'SA>SA,\u2003\u2003(1)'}, {'br': None, 'and'}, {'br': None, 'sub': n=1', 'n', 'n', 'm=1', 'm', 'm, 'sup': N', '3', 'M', '3, 'i': E', 't', 'N', 'E', 't', 'M, '[(Σ)÷]÷[(Σ)÷]>1.1\ ...
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