A golf club head with improved striking face is disclosed. More specifically, the present invention relates to a golf club head wherein the striking face is further comprised out of a thickened central region, located near a geometric center of the striking face portion, a central transition region extending outward radially from the thickened central region, a thinned intermediate region, extending outward radially from the central transition region, a thickened stress reducing region, extending outward radially from the thinned intermediate region, and a thinned perimeter region, extending outward radially from the thickened stress reducing region, all of which combine to form the improved striking face.

An iron-type golf club head where a ratio of a maximum toe height of the iron-type golf club head to a blade length of the iron-type golf club head is greater than zero and at most 0.62. A maximum thickness of the front portion, along the strike face, corresponds with a location toeward of a geometric center of the strike face. The thickness of the front portion, at the geometric center of the strike face, is less than the maximum thickness of the front portion. A coefficient of restitution (COR) of the iron-type golf club head is at least 0.818 and at most 0.830. An entirety of the sole is rounded along a plane parallel to the strike face, and a radius of curvature of the sole, along the plane parallel to the strike face, is no more than between, and inclusive of, 100 mm and 275 mm.

A golf club head with improved striking face is disclosed. More specifically, the present invention relates to a golf club head wherein the striking face is further comprised out of a thickened central region, located near a geometric center of the striking face portion, a central transition region extending outward radially from the thickened central region, a thinned intermediate region, extending outward radially from the central transition region, a thickened stress reducing region, extending outward radially from the thinned intermediate region, and a thinned perimeter region, extending outward radially from the thickened stress reducing region, all of which combine to form the improved striking face.

Some embodiments include hollow body club heads having reinforced club head faces. In one example, the club face comprises a reinforcement element such as a looped rib positioned on a rear surface of the club face to provide reinforcement. The club head defines a closed interior cavity, where the reinforcement is located within the closed interior cavity. The hollow body club head further comprises a rear including a plurality of walls to allow the club head to easily bend during a golf ball impact. The combination of the hollow body design and the reinforcement element reinforces the club head while permitting the club face to bend. Other embodiments of related club heads and methods are also disclosed.

A golf club head is described having a body defining an interior cavity and comprising a heel portion, a toe portion, and a sole portion positioned at a bottom portion of the golf club head, and a crown positioned at a top portion. The body has a forward portion and a rearward portion. A face is positioned at the forward portion of the body. The face has a center face location and includes a center face characteristic time. An off-center location on the face is located at about −40 mm in a heel direction away from the center face location. The off-center location has an off-center characteristic time of at least 80% of the center face characteristic time.

An iron-type golf club head includes a ball striking face and a rear weight member that are engaged through one or more resilient members with a connection structure that creates a mass-damping effect at impact with a golf ball.

Embodiments of golf clubs head sets with varying characteristics are disclosed herein. Other examples and related methods are also generally described herein.

A golf club head includes a club face and a body. The club face is formed from a metallic material and includes a first, hitting surface, a second, rear surface that is opposite the first surface, and a flange that is separated from the second surface by a transverse distance. The body is formed from a polymeric material and includes a crown, a sole, a hosel, and a face support. The club face and the body cooperate to define a closed volume, and the face support extends to opposing sides of the flange and is operative to couple the club face to the body.

A golf club head with a sole having a low stiffness compliance zone, which allows the face to deflect downward upon impact with a golf ball, is disclosed herein. The compliance zone comprises a plurality of through openings that are filled with one or more filler pieces comprising a low modulus material, all of which are located within three inches of a face section measured along a front-to-back axis of the golf club head.

Methods of applying a polymeric coating to a rear face surface of golf club heads with variable face thickness are disclosed herein. The coating, which preferably comprises polyurea, improves the durability of the face and reduces the hits to failure ratio of the golf club head. The coating improves the performance of the golf club head because it allows for reduction in overall face thickness and easy post-process manipulation to allow for fine-tuning of mass properties after production. The reduction in thickness leads to overall weight reduction, because the polymer is roughly a quarter of the density of titanium or stainless steel, and also reinforces the face, thereby increasing the lifespan of the club.