A golf club head including a striking face, a periphery portion surrounding and extending rearwards from the striking face, wherein the striking face comprises a front surface configured to strike a golf ball and a rear surface opposite the front surface, wherein the rear surface of the striking face comprises a supported region, a support arm spaced from the rear surface of the striking face, the support arm extending from the periphery portion towards the supported region, a deformable element residing between the support arm and the rear surface of the striking face, and wherein the deformable element comprises a front surface in contact with the rear surface of the striking face and a rear surface in contact with the support arm.

Described herein is a system of golf clubs having shafts with ascending weights (shaft weights that increase as shaft lengths decrease). The system of golf clubs can be manufactured by implementing a method called stepping, which allows the system of golf clubs with ascending weights to be manufactured with reduced quantity of inventory.

The present invention is direct to a set of golf clubs comprising long irons, mid-irons and short irons. The invention contemplates the use of titanium or steel for the main body portion and significant tungsten weight members coupled to at least the toe via a mechanical fastener inserted through the face.

Embodiments of a golf club set with progressive tapered face thickness coordinated with club loft are generally described herein. Other embodiments may be described and claimed.

A shaft set 2S includes a first shaft SF1, a second shaft SF2 shorter than the first shaft SF1, and a third shaft SF3 shorter than the second shaft SF2. At least the second shaft SF2 and the third shaft SF3 each include butt partial bias layers s3 and s4. Weights of the butt partial bias layers s3 and s4 are increased as the shaft is shortened. At least the first shaft SF1 and the second shaft SF2 each include tip partial bias layers s10 and s11. Weights of the tip partial bias layers s10 and s11 are decreased as the shaft is shortened.

A golf club set includes golf clubs having different loft angles and including weight-embedded golf clubs. Each of the weight-embedded golf clubs comprises a club head composed of a head main body having a club face for hitting a ball, and an internal weight member disposed in the head main body. The internal weight members of the weight-embedded golf clubs are arranged such that the loft angle is lager, the center of gravity of the internal weight member is positioned more on the toe side.

A golf club set according to the present invention is constituted by a plurality of golf clubs having different loft angles. Each golf club includes a shaft and a golf club head. Each of the golf club heads includes a crown part, a face part, a sole part, and a hosel part attached to the shaft. In at least one combination of golf clubs, among the plurality of golf clubs, having different loft angles, the golf club head of the golf club having the higher loft angle is, when in a reference state, longer from a lowermost point to an uppermost point of the golf club head, excluding the hosel part, than the golf club head of the golf club having the lower loft angle.

Some embodiments include a club head for adjusting vertical spin of a golf ball. Other embodiments of related systems and methods are also disclosed.

A set of golf clubs having a degree of loft and lie adjustability to provide improved distance gapping.

An iron type golf club head includes a hitting face that has a plurality of score lines and a face center, a back surface, a sole surface, a top blade and a face thickness. On the back surface, a thick wall portion is formed over a region including a score line center position, the thick wall portion having a face thickness of greater than that of a part on the toe side thereof and greater than that of a part on the heel side thereof. The thick wall portion is formed such that it extends toward the toe side as it goes toward the blade side from the sole side. The iron type golf club head has a loft angle of greater than or equal to 46?. The face thickness is defined as a distance between the hitting face and the back surface.