Today’s Patent – Golf Club Head

The said invention (US11931628B2) was invented by Daisuke Saito, patented by USPTO on 10-12-2021. Currently, it stands assigned to Honma Holdings Group Ltd.

The present disclosure relates to a golf club head. Regardless of the skill level, increasing the flight distance is an endless challenge for golfers. In particular, differently from the other golf clubs, the improvement in the flight distance performance of the drivers always continues to be expected. Various factors are involved in the improvement of the flight distance performance. One of the typical factors is the restitution performance of a golf club head. The restitution performance is closely related to the flight distance performance. In order to achieve a higher flight distance performance, attempts have been made so far to enhance the coefficient of restitution of a face that hits a ball.

A golf club head is formed by joining various parts to a head shell made of metal and having a hollow structure. The head shell has a region where a face and a sole are continuous with each other, thereby forming a leading edge between the face and the sole. The sole of the head shell is provided with a concave slot along the leading edge. The slot is configured to bend in a target direction upon hitting a ball with the face. A reinforcing member made of fiber reinforced plastic configured to apply a resistance to bending of the slot is attached in the slot. The slot has a thickness of, for example, about 0.8 mm to 1.3 mm and has a cross-sectional shape forming a parabola. The reinforcing member has a thickness of, for example, about 10% to 20% of the width of the slot in the target direction.