| 摘要 |
<p>PROBLEM TO BE SOLVED: To stabilize the carry. SOLUTION: The iron-type golf club head 1 has a back face B which is provided with a cavity C dented toward a face surface F. When it is placed on a horizontal surface HP in a standard state at a regular lie angle and a loft angleβ, the depth D of center of gravity which is the distance between the head center of gravity G and a sweet spot SS which is the intersecting point between the normal line drawn from the head center of gravity G toward the face surface F and the face surface F is 4.0 mm or more and the sweet spot height H which is the height of the sweet spot SS from the horizontal surface HP is 21.5 mm or less. Furthermore, the moment of inertia of the head around a horizontal axis which passes through the head center of gravity G and is parallel to the face surface F is at least 500 g.cm<2> .</p> |
