| 摘要 |
The present invention discloses an iron-type golf club head formed from multiple materials that increase torsional stiffness of the club and aid in sound performance. In particular, the iron-type golf club head includes a body having top, sole, heel, toe, and face portions, a rear cavity, and a rear flange extending upwards from the sole portion, and a composite cap comprising a plurality of ribs covering the rear cavity and forming an internal cavity. The ribs can extend from an interior surface to an exterior surface of the composite cap, and in one embodiment, at least one of the ribs extends along an interior surface of the composite cap and hooks over the rear flange. |
| 主权项 |
1. An iron-type golf club head comprising:
a body having a top portion, a sole portion, a heel portion, a toe portion, a rear cavity, a face portion, and a rear flange extending upwards from the sole portion; and a composite cap affixed to the body, wherein the composite cap covers the rear cavity, forming an internal cavity, wherein the composite cap comprises a plurality of vertical ribs, wherein the plurality of ribs comprises at least three ribs, wherein each of the plurality of ribs extends along an interior surface of the composite cap and hooks over the rear flange, wherein each of the plurality of ribs extends into a lower region of the internal cavity, wherein at least one of the plurality of ribs makes contact with an interior surface of the sole portion, wherein the composite cap is composed of a 45 degree composite material, wherein the composite cap has a thickness of no less than 0.001 inch and no more than 0.500 inch, and wherein the golf club head has a first mode measurement of at least 3000 Hz and a second mode measurement of at least 3250 Hz. |
